{"title":"Partners","description":"\u003cp\u003eAmplifiers and gear from our partners Straitwire and SystemDump.\u003c\/p\u003e","products":[{"product_id":"associate-amplifier","title":"Associate Amplifier PCB","description":"\u003cdiv class=\"associate-description\" style=\"line-height: 1.6;\"\u003e\n\u003cdiv style=\"border: 1px solid #ff2a00; border-radius: 6px; padding: 0.75em 1em; margin: 0 0 1.5em;\"\u003e\u003cstrong style=\"color: #ff2a00;\"\u003eExternal 24 V power supply required — not included.\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp style=\"font-size: 1.05em; margin: 0 0 1em;\"\u003eInspired by many, built by a few. The \u003cstrong\u003eAssociate\u003c\/strong\u003e amplifier is here. Build it yourself, hang it on a shelf!\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 1.5em;\"\u003eAvailable as a PCB. For boutique versions, \u003ca href=\"https:\/\/discord.gg\/fAqPWhq7Af\" rel=\"noopener noreferrer\" target=\"_blank\"\u003econtact Parker through our Discord\u003c\/a\u003e.\u003cbr\u003eAdditional information on the \u003ca href=\"https:\/\/etaheadphones.com\/products\/discrete-bridge-rectifier-rectum-fryer\" title=\"System Dump discrete-bridge-rectifier\"\u003ediscrete rectifier\u003c\/a\u003e is here.\u003c\/p\u003e\n\u003cdiv style=\"border: 1px solid currentColor; border-radius: 6px; padding: 1em 1.25em; margin: 0 0 1.5em; opacity: 0.95;\"\u003e\n\u003cdiv style=\"font-size: 0.8em; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.65; margin-bottom: 0.75em;\"\u003eSpecifications\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25); width: 45%; opacity: 0.7;\"\u003eTopology\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003eUnity gain follower\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25); opacity: 0.7;\"\u003eOutput current\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003e150 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25); opacity: 0.7;\"\u003ePower input\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003eExternal 24 V, required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25); opacity: 0.7;\"\u003eRectifier (with-rectifier variant)\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003eST STPSC6H065D — 650 V, 6 A SiC Schottky, TO-220AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; opacity: 0.7;\"\u003eSupplied as\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0;\"\u003eBare PCB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid currentColor; border-radius: 6px; padding: 1em 1.25em; margin: 0 0 1.5em; opacity: 0.95;\"\u003e\n\u003cdiv style=\"font-size: 0.8em; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.65; margin-bottom: 0.75em;\"\u003eWhat's included\u003c\/div\u003e\n\u003cul style=\"margin: 0; padding-left: 1.25em; line-height: 1.7;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssociate\u003c\/strong\u003e — 1 × Associate amplifier PCB (bare board)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWith rectifier\u003c\/strong\u003e — 1 × Associate amplifier PCB + 1 × \u003ca href=\"https:\/\/etaheadphones.com\/products\/discrete-bridge-rectifier-rectum-fryer\"\u003eDiscrete Bridge Rectifier\u003c\/a\u003e PCB (bare boards). The rectifier takes 4 × \u003cstrong\u003eST STPSC6H065D\u003c\/strong\u003e SiC Schottky (650 V, 6 A, TO-220AC) — \u003ca href=\"https:\/\/www.digikey.com\/en\/products\/detail\/stmicroelectronics\/STPSC6H065D\/3516470\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eDigiKey 497-13172-ND\u003c\/a\u003e, not included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 0.85em; opacity: 0.75; margin: 0.75em 0 0;\"\u003eNot included: components (see BOM below), 24 V power supply, case, volume control.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size: 1em; letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 0.75em;\"\u003eDocumentation \u0026amp; parts\u003c\/h3\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 0.5em; margin: 0 0 1.1em;\"\u003e\n\u003ca href=\"https:\/\/www.digikey.com\/short\/rv8r2nz9\" rel=\"noopener noreferrer\" target=\"_blank\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center;\"\u003eDigiKey BOM\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0719\/5705\/3736\/files\/Associate_Amplifier_BOM_Index.pdf?v=1777856275\" rel=\"noopener noreferrer\" target=\"_blank\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center;\"\u003eParts index (PDF)\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0719\/5705\/3736\/files\/Associate_Build_Guide_Updated.pdf?v=1777856280\" rel=\"noopener noreferrer\" target=\"_blank\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center;\"\u003eBuild guide (PDF)\u003c\/a\u003e\u003ca href=\"https:\/\/etaheadphones.com\/blogs\/eta-tuning-and-design\/system-dump-engineering-associate-power-supply\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center;\"\u003eBlog post\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 0.85em; opacity: 0.75; margin: 0 0 1.5em;\"\u003eEasiest route: open the \u003cstrong\u003eDigiKey BOM\u003c\/strong\u003e and add all parts to your cart. The \u003cstrong\u003eparts index\u003c\/strong\u003e lists every position on the board with its value, and the \u003cstrong\u003ebuild guide\u003c\/strong\u003e walks through assembly in order. The list covers the amplifier board only; the 24 V supply, case and volume pot are sourced separately (below).\u003c\/p\u003e\n\u003ch3 style=\"font-size: 1em; letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 0.75em;\"\u003eCase\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 0.75em;\"\u003eHammond extruded aluminum, or print your own.\u003c\/p\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 0.5em; margin: 0 0 1.5em;\"\u003e\n\u003ca href=\"https:\/\/www.amplifiedparts.com\/products\/chassis-box-hammond-extruded-aluminum-866-x-406-x-209\" rel=\"noopener noreferrer\" target=\"_blank\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center;\"\u003eRecommended case\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0719\/5705\/3736\/files\/Associate_case.zip?v=1776146970\" rel=\"noopener noreferrer\" target=\"_blank\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center;\"\u003e3D printable case (ZIP)\u003c\/a\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size: 1em; letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 0.75em;\"\u003eVolume control\u003c\/h3\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 0.5em; margin: 0 0 1.5em;\"\u003e\n\u003ca href=\"https:\/\/partsconnexion.com\/alps-10k-blue-velvet-stereo-potentiometer\" rel=\"noopener noreferrer\" target=\"_blank\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center;\"\u003eVolume pot (Alps 10K)\u003c\/a\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size: 1em; letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 0.75em;\"\u003ePower supply\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 0.75em;\"\u003e24 V external, not included. Three routes, easiest first.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 0.4em; font-weight: bold;\"\u003eOff the shelf — easiest\u003c\/p\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 0.5em; margin: 0 0 1.1em;\"\u003e\n\u003ca href=\"https:\/\/www.amazon.com\/dp\/B00B88EGM6\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center;\"\u003eAmazon supply\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 0.4em; font-weight: bold;\"\u003ePlug and play — intermediate\u003c\/p\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 0.5em; margin: 0 0 1.1em;\"\u003e\n\u003ca href=\"https:\/\/www.antekinc.com\/50w-linear-power-supply\/\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center;\"\u003eAntek 50 W linear supply\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 0.4em; font-weight: bold;\"\u003eBuild your own — recommended parts\u003c\/p\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 0.5em; margin: 0 0 1.1em;\"\u003e\n\u003ca href=\"https:\/\/www.digikey.com\/en\/mylists\/list\/65MVARP4OR\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center;\"\u003ePower supply BOM\u003c\/a\u003e\u003ca href=\"https:\/\/www.antekinc.com\/an-0210-25va-10v-transformer\/\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center;\"\u003eTransformer\u003c\/a\u003e\u003ca href=\"https:\/\/www.amplifiedparts.com\/products\/receptacle-iec-c14-power-cord-3-prong\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center;\"\u003eAC inlet (IEC C14)\u003c\/a\u003e\u003ca href=\"https:\/\/www.amplifiedparts.com\/products\/wire-20-awg-solid-core-lacquered-cloth-cover-600v?attr_color=brown\u0026amp;attr_length=50%20feet\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center;\"\u003eHookup wire\u003c\/a\u003e\u003ca href=\"https:\/\/www.amplifiedparts.com\/products\/fuse-slow-blow-250v-3ag-025-x-125\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center;\"\u003eFuse\u003c\/a\u003e\u003ca href=\"https:\/\/www.amplifiedparts.com\/products\/fuse-holder-3ag-type-low-profile-knob-right-angle-spade-lug\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center;\"\u003eFuse holder\u003c\/a\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size: 1em; letter-spacing: 0.08em; text-transform: uppercase; margin: 1.5em 0 0.75em;\"\u003eCommunity\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 0.75em;\"\u003eBuild questions, mods, and finished amps — join the builders on Discord.\u003c\/p\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 0.5em; margin: 0 0 0.5em;\"\u003e\n\u003ca href=\"https:\/\/discord.gg\/fAqPWhq7Af\" target=\"_blank\" rel=\"noopener\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; font-weight: bold; text-align: center;\"\u003eJoin the conversation\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 1.5em 0 0;\"\u003e\u003ca href=\"https:\/\/systemdump.co\/#associate\" target=\"_blank\" rel=\"noopener\" style=\"display: inline-block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em;\"\u003eBoutique audio design →\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"System Dump","offers":[{"title":"Associate","offer_id":51808290930984,"sku":"PCB-1","price":25.0,"currency_code":"USD","in_stock":true},{"title":"with rectifier","offer_id":51806832394536,"sku":"PCB-1+RECT-1","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/5705\/3736\/files\/PXL_20251218_043733324.jpg?v=1775098821"},{"product_id":"executive","title":"Executive - Headphone Preamp - DIY","description":"\u003cdiv class=\"executive-description\" style=\"line-height: 1.6;\"\u003e\n\u003cp style=\"font-size: 1.05em; margin: 0 0 1em;\"\u003e\u003cstrong\u003eExecutive\u003c\/strong\u003e is a simple headphone amp and line stage with a directly coupled design — a keep-it-simple-stupid headphone output stage, optimized for discrete op amps, with a robust power supply behind it.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 1.5em;\"\u003eIt's a combination of state of the art and repairable. Any part can be replaced. Build yours today.\u003c\/p\u003e\n\u003cdiv style=\"border: 1px solid currentColor; border-radius: 6px; padding: 1em 1.25em; margin: 0 0 1.5em; opacity: 0.95;\"\u003e\n\u003cdiv style=\"font-size: 0.8em; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.65; margin-bottom: 0.75em;\"\u003eSpecifications\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25); width: 45%; opacity: 0.7;\"\u003eTopology\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003eDirectly coupled, discrete op amp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25); opacity: 0.7;\"\u003ePower supply\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003eBipolar ±15 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25); opacity: 0.7;\"\u003eRectification\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003eSiC diodes — eliminates switching spikes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25); opacity: 0.7;\"\u003eFunction\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003eHeadphone amp + line stage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25); opacity: 0.7;\"\u003eGain stage board\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003e42 × 35 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25); opacity: 0.7;\"\u003ePower supply board\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003e140 × 69 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25); opacity: 0.7;\"\u003eMounting holes\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003eM3, both boards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; opacity: 0.7;\"\u003eServiceability\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0;\"\u003eFully repairable — any part can be replaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid currentColor; border-radius: 6px; padding: 1em 1.25em; margin: 0 0 1.5em; opacity: 0.95;\"\u003e\n\u003cdiv style=\"font-size: 0.8em; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.65; margin-bottom: 0.75em;\"\u003eWhat's included\u003c\/div\u003e\n\u003cul style=\"margin: 0; padding-left: 1.25em; line-height: 1.7;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIY Boards\u003c\/strong\u003e — 1 × gain stage board + 1 × power supply board (bare PCBs)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 0.85em; opacity: 0.75; margin: 0.75em 0 0;\"\u003eNot included: components (see BOM below), transformer, volume pot, standoffs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size: 1em; letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 0.75em;\"\u003eDocumentation \u0026amp; parts\u003c\/h3\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 0.5em; margin: 0 0 1.1em;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0719\/5705\/3736\/files\/executive_complete_bom.xlsx?v=1789349333\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center;\"\u003eComplete BOM (XLSX)\u003c\/a\u003e\u003ca href=\"https:\/\/www.mouser.com\/en\/Tools\/Project\/Share?AccessID=1fb3192e3c\" target=\"_blank\" rel=\"noopener\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center;\"\u003eMouser shared project\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0719\/5705\/3736\/files\/executive_digikey_bulk_add.txt?v=1789349333\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center;\"\u003eDigiKey bulk-add list\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0719\/5705\/3736\/files\/executive_mouser_bom.csv?v=1789491459\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center;\"\u003eMouser BOM (CSV)\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 0.85em; opacity: 0.75; margin: 0 0 1.5em;\"\u003eEasiest route: open the \u003cstrong\u003eMouser shared project\u003c\/strong\u003e and add all parts to your cart. Or paste the DigiKey list into your cart's \u003cstrong\u003eBulk Add\u003c\/strong\u003e box, or upload the CSV using the \u003ca href=\"https:\/\/www.mouser.com\/en\/Bom\/\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMouser BOM Tool\u003c\/strong\u003e\u003c\/a\u003e (account required). The list covers both boards plus the RCA jacks, IEC inlet, fuse holder and 0.5 A slow-blow fuses; the transformer is ordered separately (below).\u003c\/p\u003e\n\u003ch3 style=\"font-size: 1em; letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 0.75em;\"\u003eBuild notes\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 1em;\"\u003eThe questions we get asked most. Short version: the values in these positions aren't critical — more than one answer is correct.\u003c\/p\u003e\n\u003cdiv style=\"border: 1px solid currentColor; border-radius: 6px; padding: 1em 1.25em; margin: 0 0 1.5em; opacity: 0.95;\"\u003e\n\u003cp style=\"margin: 0 0 1em;\"\u003e\u003cstrong\u003eDecoupling \/ bypass caps — the silkscreen says 1 µF.\u003c\/strong\u003e Either 0.1 µF or 1.0 µF works in those positions. Use whichever you have on hand; nothing here is crucial to adhere to.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 1em;\"\u003e\u003cstrong\u003eFeedback resistor — this is what sets your gain.\u003c\/strong\u003e 1k gives you 1 dB of gain, 10k gives you 10 dB. Pick the value that suits your headphones and source.\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cstrong\u003eLED resistor — 470k.\u003c\/strong\u003e The LED goes between the power rails, so it sees the full 30 V. 470k keeps the current low: a nice dim glow, and a safe value for the LED not to go boom.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size: 1em; letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 0.75em;\"\u003eTransformer\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 0.75em;\"\u003e25 VA, 2 × 15 V secondaries, 115\/230 V primary. Not included — order separately.\u003c\/p\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 0.5em; margin: 0 0 1.1em;\"\u003e\n\u003ca href=\"https:\/\/www.antekinc.com\/an-0215-25va-15v-transformer\/\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center;\"\u003eAntek AN-0215 — lead wires\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 0.4em; font-weight: bold;\"\u003eComing soon — PCB mount\u003c\/p\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 0.5em; margin: 0 0 1.1em;\"\u003e\n\u003ca href=\"https:\/\/www.digikey.com\/en\/products\/detail\/talema-group-llc\/70063K\/3881322\" style=\"display: block; padding: 0.65em 1em; border: 1px dashed currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center; opacity: 0.6;\"\u003eTalema 70063K\u003c\/a\u003e\u003ca href=\"https:\/\/sklep.toroidy.pl\/en_US\/p\/TAPCB-25VA-2x15-AUDIO-PCB-Transformer-2x115V2x15V\/1052\" style=\"display: block; padding: 0.65em 1em; border: 1px dashed currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center; opacity: 0.6;\"\u003eToroidy TAPCB-25VA-2x15\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 0.85em; opacity: 0.75; margin: 0 0 1.5em;\"\u003eThe current supply board takes a lead-wire transformer. A board revision with a PCB-mount footprint for these two is in the works.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 1em; letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 0.75em;\"\u003eAlso needed\u003c\/h3\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 0.5em; margin: 0 0 0.5em;\"\u003e\n\u003ca href=\"https:\/\/partsconnexion.com\/alps-20k-blue-velvet-stereo-potentiometer\/\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center;\"\u003eVolume pot (Alps 20K)\u003c\/a\u003e\u003ca href=\"https:\/\/www.amazon.com\/dp\/B0C5W2VXWC\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; text-align: center;\"\u003eM3 adhesive standoffs (Amazon)\u003c\/a\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size: 1em; letter-spacing: 0.08em; text-transform: uppercase; margin: 1.5em 0 0.75em;\"\u003eCommunity\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 0.75em;\"\u003eBuild questions, mods, and finished amps — join the Executive builders on Discord.\u003c\/p\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 0.5em; margin: 0 0 0.5em;\"\u003e\n\u003ca href=\"https:\/\/discord.gg\/aPW6ChTZsz\" target=\"_blank\" rel=\"noopener\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; font-weight: bold; text-align: center;\"\u003eJoin the conversation\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 1.5em 0 0;\"\u003e\u003ca href=\"https:\/\/systemdump.co\/#executive\" target=\"_blank\" rel=\"noopener\" style=\"display: inline-block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em;\"\u003eBoutique audio design →\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"System Dump","offers":[{"title":"DIY Boards","offer_id":52176333078824,"sku":"HID-1","price":25.0,"currency_code":"USD","in_stock":true},{"title":"Fully Built","offer_id":52176333111592,"sku":"HID-2","price":2000.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/5705\/3736\/files\/3.jpg?v=1785992686"},{"product_id":"bravo","title":"Bravo - 6v6 tube Headphone Amplifier","description":"\u003cp style=\"line-height: 1.7; margin-bottom: 1em;\"\u003eHand Built in North Carolina, USA\u003c\/p\u003e\n\u003cul style=\"line-height: 1.7; margin-bottom: 1.5em; padding-left: 1.5em;\"\u003e\n\u003cli\u003ePure Class-A Operation\u003c\/li\u003e\n\u003cli\u003eDual Independent Power Supplies\u003c\/li\u003e\n\u003cli\u003eNOS 6SN7 and 6V6 tubes included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 1.5em;\"\u003eDesigned and tuned for the discerning listener.\u003cbr\u003e\u003cstrong style=\"color: #990bfe;\"\u003eA Lifetime Amp\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv style=\"border: 1px solid currentColor; border-radius: 6px; padding: 1em 1.25em; margin: 0 0 1.5em; opacity: 0.95;\"\u003e\n\u003cdiv style=\"font-size: 0.8em; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.65; margin-bottom: 0.75em;\"\u003eWhat's included\u003c\/div\u003e\n\u003cul style=\"margin: 0; padding-left: 1.25em; line-height: 1.7;\"\u003e\n\u003cli\u003eBravo amplifier\u003c\/li\u003e\n\u003cli\u003e2 × NOS 6SN7 input tubes\u003c\/li\u003e\n\u003cli\u003e4 × NOS 6V6 output tubes (two pairs)\u003c\/li\u003e\n\u003cli\u003eIEC power cord\u003c\/li\u003e\n\u003cli\u003eSticker\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin: 1.8em 0 0.8em;\"\u003eFeatures\u003c\/h3\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 0.5em;\"\u003e\u003cstrong\u003eCore Architecture\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"line-height: 1.7; margin-bottom: 1.5em; padding-left: 1.5em;\"\u003e\n\u003cli\u003ePure Class-A Operation\u003c\/li\u003e\n\u003cli\u003eTube Complement: 6SN7 \u0026amp; 6V6\u003c\/li\u003e\n\u003cli\u003eDual Independent Power Supplies\u003c\/li\u003e\n\u003cli\u003ePure Single-Ended Triode-to-Pentode Signal Path\u003c\/li\u003e\n\u003cli\u003eNo-Compromise Topology \u003cem\u003e(Zero tone-killing compromises; entirely free of Cathode Follower or Parafeed circuits)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003eTrue Auto-Bias Circuitry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Load Profile:\u003c\/strong\u003e Ideal for headphones 32 Ω to 600 Ω\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 0.5em;\"\u003e\u003cstrong\u003eConnectivity\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"line-height: 1.7; margin-bottom: 1.5em; padding-left: 1.5em;\"\u003e\n\u003cli\u003eRCA Input\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 0.5em;\"\u003e\u003cstrong\u003e3 Input Upgrade\u003c\/strong\u003e \u003cem\u003e(+$200 — select the 3 Inputs + Pre-Out configuration above)\u003c\/em\u003e\u003c\/p\u003e\n\u003cul style=\"line-height: 1.7; margin-bottom: 1.5em; padding-left: 1.5em;\"\u003e\n\u003cli\u003e3 Selectable Inputs\u003c\/li\u003e\n\u003cli\u003ePreamplifier Output (Pre-Out)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 0.5em;\"\u003e\u003cstrong\u003eCraftsmanship \u0026amp; Signal Path\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"line-height: 1.7; margin-bottom: 1.5em; padding-left: 1.5em;\"\u003e\n\u003cli\u003ePremium Point-to-Point Wiring\u003c\/li\u003e\n\u003cli\u003eFully Shielded Input Stage\u003c\/li\u003e\n\u003cli\u003eTKD 2CP-2511 100k Premium Volume Control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 0.5em;\"\u003e\u003cstrong\u003ePower \u0026amp; Real-World Noise Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"line-height: 1.7; margin-bottom: 2em; padding-left: 1.5em;\"\u003e\n\u003cli\u003eHeavy-Duty Power Transformers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium CLCLC Filter Stage\u003c\/strong\u003e with Dual Heavy-Duty Filter Chokes\u003c\/li\u003e\n\u003cli\u003eNon-Magnetic Aluminum Chassis \u003cem\u003e(Eliminates stray eddy currents \u0026amp; hum)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003eElevated DC Filament Supply\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHonest Residual Noise Floor:\u003c\/strong\u003e −80 dB (Loaded @ 32 Ω) \/ −72 dB (Unloaded)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 1.2em;\"\u003eElevated DC filaments and a CLCLC-filtered B+ rail drop the noise floor. The result is full clean power across the entire impedance range.\u003c\/p\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 1.2em;\"\u003eThe power supply is true dual mono, meaning that each separate power supply powers one 6V6 and one side of the 6SN7 for complete channel separation.\u003c\/p\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 1.2em;\"\u003eThe B+ (high voltage) supply is rectified with ultra-fast diodes and the plates of the 6SN7 are supplied with regulated B+ from a Zener diode chain. Non-inductive Vishay resistors on the regulated B+ rail and on the 6V6 cathodes keep the signal path clean from supply to output stage.\u003c\/p\u003e\n\u003ch3 style=\"margin: 1.8em 0 0.8em;\"\u003eSpecifications\u003c\/h3\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 0.5em;\"\u003e\u003cstrong\u003ePreamplifier output (unloaded line out):\u003c\/strong\u003e 8.0 V RMS max clean · residual noise floor ≤ −78 dBm.\u003c\/p\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 2em;\"\u003e\u003cstrong\u003eLoaded noise floor:\u003c\/strong\u003e ≤ −80 dBm into 32 Ω — acoustic silence on high-sensitivity headphones.\u003c\/p\u003e\n\u003ch3 style=\"margin: 1.8em 0 0.8em;\"\u003eReviews\u003c\/h3\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 0.5em;\"\u003e\u003cstrong\u003e★★★★★  \"BRAVO — Extraordinary Class A 6SN7 \/ 6V6 Triode Mode Headphone Amplifier\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 0.5em;\"\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"line-height: 1.7; margin-bottom: 1.2em; padding-left: 1.5em;\"\u003e\n\u003cli\u003eEuphonic voicing\u003c\/li\u003e\n\u003cli\u003eBuild quality\u003c\/li\u003e\n\u003cli\u003eExcellent component parts\u003c\/li\u003e\n\u003cli\u003eGold-plated connections\u003c\/li\u003e\n\u003cli\u003eChoice of colors\u003c\/li\u003e\n\u003cli\u003eClass A — Triode mode\u003c\/li\u003e\n\u003cli\u003eCustom-wound transformers and chokes\u003c\/li\u003e\n\u003cli\u003ePre-amp\u003c\/li\u003e\n\u003cli\u003eTKD potentiometer\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 1.2em;\"\u003e\u003cstrong\u003eCons\u003c\/strong\u003e — Cost\u003c\/p\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 1.5em;\"\u003e— Alex, via \u003ca href=\"https:\/\/www.head-fi.org\/showcase\/straitwire-x-eta-bravo-6v6-tube-headphone-amplifier.29160\/\"\u003eHead-Fi\u003c\/a\u003e · May 23, 2026\u003c\/p\u003e","brand":"Straitwire x ETA","offers":[{"title":"120 \/ Standard","offer_id":52308395229480,"sku":"Bravo-1","price":2999.0,"currency_code":"USD","in_stock":true},{"title":"120 \/ 3 Inputs + Pre-Out","offer_id":51529481879848,"sku":"Bravo-1-3I","price":3199.0,"currency_code":"USD","in_stock":true},{"title":"240 \/ Standard","offer_id":52308395262248,"sku":"Bravo-2","price":2999.0,"currency_code":"USD","in_stock":true},{"title":"240 \/ 3 Inputs + Pre-Out","offer_id":51529481912616,"sku":"Bravo-2-3I","price":3199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/5705\/3736\/files\/DSC_2448_01.jpg?v=1785353641"},{"product_id":"whiskey","title":"Whiskey - ECC99 Tube Headphone Amplifier","description":"\u003cp style=\"line-height: 1.7; margin-bottom: 1em;\"\u003eHand Built in North Carolina, USA\u003c\/p\u003e\n\u003cul style=\"line-height: 1.7; margin-bottom: 1.5em; padding-left: 1.5em;\"\u003e\n\u003cli\u003eSingle-Ended Class A Operation\u003c\/li\u003e\n\u003cli\u003e0.75 to 1.2 Watts of Pure Power\u003c\/li\u003e\n\u003cli\u003eJJ ECC99 tubes included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 1.5em;\"\u003eDesigned and tuned for the discerning listener.\u003c\/p\u003e\n\u003cdiv style=\"border: 1px solid currentColor; border-radius: 6px; padding: 1em 1.25em; margin: 0 0 1.5em; opacity: 0.95;\"\u003e\n\u003cdiv style=\"font-size: 0.8em; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.65; margin-bottom: 0.75em;\"\u003eWhat's included\u003c\/div\u003e\n\u003cul style=\"margin: 0; padding-left: 1.25em; line-height: 1.7;\"\u003e\n\u003cli\u003eWhiskey amplifier\u003c\/li\u003e\n\u003cli\u003e4 × new production JJ ECC99 tubes (two pairs)\u003c\/li\u003e\n\u003cli\u003eIEC power cord\u003c\/li\u003e\n\u003cli\u003eSticker\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin: 1.8em 0 0.8em;\"\u003eFeatures\u003c\/h3\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 0.5em;\"\u003e\u003cstrong\u003eCore Architecture\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"line-height: 1.7; margin-bottom: 1.5em; padding-left: 1.5em;\"\u003e\n\u003cli\u003eSingle-Ended Class A Design\u003c\/li\u003e\n\u003cli\u003eStock Tube Complement: JJ ECC99\u003c\/li\u003e\n\u003cli\u003e0.75–1.2 W output power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Headphone Compatibility:\u003c\/strong\u003e high-impedance, planar magnetic, and low-impedance models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 0.5em;\"\u003e\u003cstrong\u003eConnectivity\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"line-height: 1.7; margin-bottom: 1.5em; padding-left: 1.5em;\"\u003e\n\u003cli\u003eRCA Input\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 0.5em;\"\u003e\u003cstrong\u003e3 Input Upgrade\u003c\/strong\u003e \u003cem\u003e(+$200 — select the 3 Inputs + Pre-Out)\u003c\/em\u003e\u003c\/p\u003e\n\u003cul style=\"line-height: 1.7; margin-bottom: 1.5em; padding-left: 1.5em;\"\u003e\n\u003cli\u003e3 Selectable Inputs\u003c\/li\u003e\n\u003cli\u003ePreamplifier Output (Pre-Out)\u003c\/li\u003e\n\u003cli\u003eRemote Control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 0.5em;\"\u003e\u003cstrong\u003eCraftsmanship \u0026amp; Signal Path\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"line-height: 1.7; margin-bottom: 1.5em; padding-left: 1.5em;\"\u003e\n\u003cli\u003eGold-Plated Tube Sockets and RCA Jacks\u003c\/li\u003e\n\u003cli\u003eAudio-Grade Capacitors and Resistors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 0.5em;\"\u003e\u003cstrong\u003ePower \u0026amp; Real-World Noise Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"line-height: 1.7; margin-bottom: 2em; padding-left: 1.5em;\"\u003e\n\u003cli\u003eHeavy-Duty Power Transformer\u003c\/li\u003e\n\u003cli\u003eCustom-Wound Output Transformers and Choke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Quiet Operation:\u003c\/strong\u003e pristine, noise-free soundstage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin: 1.8em 0 0.8em;\"\u003eSpecifications\u003c\/h3\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 0.5em;\"\u003e\u003cstrong\u003eCompatible Tubes\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%; margin-bottom: 1.5em;\" cellspacing=\"0\" cellpadding=\"8\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 10px 12px;\"\u003eTube\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 10px 12px;\"\u003eAdapter Required\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 12px;\"\u003e\u003cstrong\u003eJJ ECC99 \u003cem\u003e(included stock)\u003c\/em\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px;\"\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 12px;\"\u003e12BH7A\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px;\"\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 12px;\"\u003eE80CC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px;\"\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 12px;\"\u003eE182CC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px;\"\u003eYes — ECC99 → E182CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 12px;\"\u003e5687\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px;\"\u003eYes — 12BH7A → 5687\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Straitwire","offers":[{"title":"120 \/ Standard","offer_id":52086940795176,"sku":"Whiskey-1","price":1899.0,"currency_code":"USD","in_stock":true},{"title":"240 \/ Standard","offer_id":52086940827944,"sku":"Whiskey-2","price":1899.0,"currency_code":"USD","in_stock":true},{"title":"120 \/ 3 Inputs + Pre-Out","offer_id":52391783465256,"sku":"Whiskey-1-RC","price":2099.0,"currency_code":"USD","in_stock":true},{"title":"240 \/ 3 Inputs + Pre-Out","offer_id":52391783498024,"sku":"Whiskey-2-RC","price":2099.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/5705\/3736\/files\/DSC_2466.jpg?v=1785353357"},{"product_id":"outlands-tube-headphone-amplifier","title":"Outlands - 6GK6 OTL Tube Headphone Amplifier","description":"\u003cp style=\"line-height: 1.7; margin-bottom: 1em;\"\u003eHand Built in North Carolina, USA\u003c\/p\u003e\n\u003cul style=\"line-height: 1.7; margin-bottom: 1.5em; padding-left: 1.5em;\"\u003e\n\u003cli\u003eOutput Transformerless (OTL) Design — paralleled 6GK6 beam power pentode output stage\u003c\/li\u003e\n\u003cli\u003e6GK6 and NOS 396A\/2C51 tubes included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 1.5em;\"\u003eDesigned and tuned for the discerning listener.\u003c\/p\u003e\n\u003cdiv style=\"border: 1px solid currentColor; border-radius: 6px; padding: 1em 1.25em; margin: 0 0 1.5em; opacity: 0.95;\"\u003e\n\u003cdiv style=\"font-size: 0.8em; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.65; margin-bottom: 0.75em;\"\u003eWhat's included\u003c\/div\u003e\n\u003cul style=\"margin: 0; padding-left: 1.25em; line-height: 1.7;\"\u003e\n\u003cli\u003eOutlands amplifier\u003c\/li\u003e\n\u003cli\u003e4 × NOS 396A \/ 5670 \/ 2C51 input tubes (two pairs)\u003c\/li\u003e\n\u003cli\u003e8 × 6GK6 output tubes (two quads)\u003c\/li\u003e\n\u003cli\u003eIEC power cord\u003c\/li\u003e\n\u003cli\u003eSticker\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin: 1.8em 0 0.8em;\"\u003eFeatures\u003c\/h3\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 0.5em;\"\u003e\u003cstrong\u003eCore Architecture\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"line-height: 1.7; margin-bottom: 1.5em; padding-left: 1.5em;\"\u003e\n\u003cli\u003e396A\/2C51 dual triode driver stage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 0.5em;\"\u003e\u003cstrong\u003eConnectivity\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"line-height: 1.7; margin-bottom: 1.5em; padding-left: 1.5em;\"\u003e\n\u003cli\u003eRCA Input\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 0.5em;\"\u003e\u003cstrong\u003e3 Input Upgrade\u003c\/strong\u003e \u003cem\u003e(+$200 — select the 3 Inputs + Pre-Out + Remote configuration above)\u003c\/em\u003e\u003c\/p\u003e\n\u003cul style=\"line-height: 1.7; margin-bottom: 1.5em; padding-left: 1.5em;\"\u003e\n\u003cli\u003e3 Selectable Inputs\u003c\/li\u003e\n\u003cli\u003ePreamplifier Output (Pre-Out)\u003c\/li\u003e\n\u003cli\u003eRemote Control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 0.5em;\"\u003e\u003cstrong\u003eCraftsmanship \u0026amp; Signal Path\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"line-height: 1.7; margin-bottom: 1.5em; padding-left: 1.5em;\"\u003e\n\u003cli\u003eTKD 2CP-2511 100k Premium Volume Control\u003c\/li\u003e\n\u003cli\u003eGold-Plated Tube Sockets and RCA Jacks\u003c\/li\u003e\n\u003cli\u003eAudio-Grade Capacitors and Resistors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin: 1.8em 0 0.8em;\"\u003eSpecifications\u003c\/h3\u003e\n\u003cp style=\"line-height: 1.7; margin-bottom: 2em;\"\u003e\u003cstrong\u003eLoaded noise floor:\u003c\/strong\u003e [TBD]\u003c\/p\u003e","brand":"Straitwire x ETA","offers":[{"title":"120 \/ Standard","offer_id":52086940959016,"sku":"Outlands-1","price":2999.0,"currency_code":"USD","in_stock":true},{"title":"240 \/ Standard","offer_id":52086940991784,"sku":"Outlands-2","price":2999.0,"currency_code":"USD","in_stock":true},{"title":"120 \/ 3 Inputs + Pre-Out + Remote","offer_id":52391783104808,"sku":"Outlands-1-RC","price":3199.0,"currency_code":"USD","in_stock":true},{"title":"240 \/ 3 Inputs + Pre-Out + Remote","offer_id":52391783137576,"sku":"Outlands-2-RC","price":3199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/5705\/3736\/files\/outlands-glow.png?v=1786593303"},{"product_id":"linear-power-supply-executive","title":"Linear Power Supply - Executive","description":"\u003cdiv class=\"exec-supply-description\" style=\"line-height: 1.6;\"\u003e\n\u003cp style=\"font-size: 1.05em; margin: 0 0 1em;\"\u003eA complete regulated bipolar power supply on one board. Add a transformer and mains hardware — nothing else.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 1.5em;\"\u003eSupplied as a bare PCB.\u003cbr\u003eAdditional information on the \u003ca href=\"https:\/\/etaheadphones.com\/products\/executive\" title=\"System Dump Executive\"\u003eExecutive gain stage can be found here\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv style=\"border: 1px solid currentColor; border-radius: 6px; padding: 1em 1.25em; margin: 0 0 1.5em; opacity: 0.95;\"\u003e\n\u003cdiv style=\"font-size: 0.8em; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.65; margin-bottom: 0.75em;\"\u003eSpecifications\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25); width: 45%; opacity: 0.7;\"\u003eOutput\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003eRegulated bipolar ±15 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25); opacity: 0.7;\"\u003eRegulation\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003eLM317 \/ LM337, on board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25); opacity: 0.7;\"\u003eRectification\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003eDiscrete bridge, SiC Schottky — no reverse recovery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25); opacity: 0.7;\"\u003eFiltering\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003eCRC per rail, 2200 µF \/ 4R7 \/ 2200 µF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25); opacity: 0.7;\"\u003eTransformer\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003eAntek AN-0215, 25 VA, 2×15 V — not included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25); opacity: 0.7;\"\u003eBoard dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003e140 × 69 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25); opacity: 0.7;\"\u003eMounting holes\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003eM3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; opacity: 0.7;\"\u003eSupplied as\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0;\"\u003eBare PCB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 1.5em 0 0;\"\u003e\u003ca href=\"https:\/\/systemdump.co\/#lps\" target=\"_blank\" rel=\"noopener\" style=\"display: inline-block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em;\"\u003eBoutique audio design →\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"System Dump","offers":[{"title":"Executive Bipolar Supply","offer_id":52236192907560,"sku":"LPS-1","price":30.0,"currency_code":"USD","in_stock":false},{"title":"with Executive gain stage board","offer_id":52236192874792,"sku":"HID-1","price":40.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/5705\/3736\/files\/exec-ps_e93e482e-2dec-48a4-b880-5b4556e5a82c.jpg?v=1786507838"},{"product_id":"discrete-bridge-rectifier-rectum-fryer","title":"Discrete Bridge Rectifier — Rectum Fryer","description":"\u003cdiv class=\"rf-description\" style=\"line-height: 1.6;\"\u003e\n\u003cdiv style=\"border: 1px solid #ff2a00; border-radius: 6px; padding: 0.75em 1em; margin: 0 0 1.5em;\"\u003e\n\u003cstrong style=\"color: #ff2a00;\"\u003eThis is a rectifier, not a power supply.\u003c\/strong\u003e No reservoir capacitors, no regulation — you add both.\u003c\/div\u003e\n\u003cp style=\"font-size: 1.05em; margin: 0 0 1em;\"\u003eAC in, raw DC out. A \u003cstrong\u003ediscrete bridge\u003c\/strong\u003e — four individual diodes rather than a moulded block, each with its own snubber, each replaceable.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 1.5em;\"\u003eSilicon carbide rectification, repairable to the last part. Build yours today.\u003c\/p\u003e\n\u003cdiv style=\"border: 1px solid currentColor; border-radius: 6px; padding: 1em 1.25em; margin: 0 0 1.5em; opacity: 0.95;\"\u003e\n\u003cdiv style=\"font-size: 0.8em; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.65; margin-bottom: 0.75em;\"\u003eSpecifications\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25); width: 45%; opacity: 0.7;\"\u003eTopology\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003eDiscrete bridge, four individual diodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25); opacity: 0.7;\"\u003eRectifiers\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003e650 V, 6 A SiC Schottky\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25); opacity: 0.7;\"\u003eOutput\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003eUnregulated raw DC, single or split\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25); opacity: 0.7;\"\u003eOn board\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003eDiodes, per-diode snubbers, series output resistors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25); opacity: 0.7;\"\u003eDiode package\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003eTO-220AC, tab live at cathode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 0.4em 0; opacity: 0.7;\"\u003eServiceability\u003c\/td\u003e\n\u003ctd style=\"padding: 0.4em 0;\"\u003eFully repairable — any part can be replaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid currentColor; border-radius: 6px; padding: 1em 1.25em; margin: 0 0 1.5em; opacity: 0.95;\"\u003e\n\u003cdiv style=\"font-size: 0.8em; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.65; margin-bottom: 0.75em;\"\u003eWhat's included\u003c\/div\u003e\n\u003cul style=\"margin: 0; padding-left: 1.25em; line-height: 1.7;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridge rectifier\u003c\/strong\u003e — 1 × rectifier board (bare PCB)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWith op amp board\u003c\/strong\u003e — 1 × rectifier board + 1 × \u003ca href=\"https:\/\/etaheadphones.com\/products\/associate-amplifier\"\u003eAssociate\u003c\/a\u003e amplifier PCB (bare boards)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 0.85em; opacity: 0.75; margin: 0.75em 0 0;\"\u003eNot included: components (see BOM below), reservoir caps, regulation, transformer, mains hardware.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size: 1em; letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 0.75em;\"\u003eBill of materials\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 0.75em;\"\u003eTen parts, three line items — everything needed to populate one board.\u003c\/p\u003e\n\u003cdiv style=\"border: 1px solid currentColor; border-radius: 6px; padding: 0.35em 1.25em; margin: 0 0 1.1em; opacity: 0.95; overflow-wrap: anywhere;\"\u003e\n\u003cdiv style=\"padding: 0.9em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003e\n\u003cdiv style=\"margin-bottom: 0.15em;\"\u003e\n\u003cstrong\u003e4 ×\u003c\/strong\u003e ST \u003cstrong\u003eSTPSC6H065D\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"opacity: 0.8;\"\u003eSiC Schottky, 650 V, 6 A, TO-220AC\u003c\/div\u003e\n\u003cdiv style=\"font-size: 0.85em; opacity: 0.6; margin-top: 0.15em;\"\u003eDigiKey 497-13172-ND\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 0.9em 0; border-bottom: 1px solid rgba(128,128,128,0.25);\"\u003e\n\u003cdiv style=\"margin-bottom: 0.15em;\"\u003e\n\u003cstrong\u003e4 ×\u003c\/strong\u003e WIMA \u003cstrong\u003eMKS2C031001A00MC00\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"opacity: 0.8;\"\u003eFilm capacitor, 0.1 µF, 63 V, radial — snubber, one across each diode\u003c\/div\u003e\n\u003cdiv style=\"font-size: 0.85em; opacity: 0.6; margin-top: 0.15em;\"\u003eDigiKey 1928-MKS2C031001A00MC00CT-ND\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 0.9em 0;\"\u003e\n\u003cdiv style=\"margin-bottom: 0.15em;\"\u003e\n\u003cstrong\u003e2 ×\u003c\/strong\u003e Ohmite \u003cstrong\u003eTUW10J4R7E\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"opacity: 0.8;\"\u003eWirewound, 4.7 Ω, 10 W, 5%, axial — series output resistors\u003c\/div\u003e\n\u003cdiv style=\"font-size: 0.85em; opacity: 0.6; margin-top: 0.15em;\"\u003eDigiKey Marketplace — ships from Ohmite, separate shipping may apply\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 0.85em; opacity: 0.75; margin: 0 0 0.6em;\"\u003eEasiest route: paste the three lines below into your DigiKey cart's \u003cstrong\u003eBulk Add\u003c\/strong\u003e box.\u003c\/p\u003e\n\u003cdiv style=\"border: 1px solid rgba(128,128,128,0.4); border-radius: 4px; padding: 0.75em 1em; margin: 0 0 1.5em; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.85em; line-height: 1.8; white-space: pre-wrap; overflow-wrap: anywhere;\"\u003e4, 497-13172-ND\n4, 1928-MKS2C031001A00MC00CT-ND\n2, TUW10J4R7E\u003c\/div\u003e\n\u003ch3 style=\"font-size: 1em; letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 0.75em;\"\u003eBuild notes\u003c\/h3\u003e\n\u003cdiv style=\"border: 1px solid currentColor; border-radius: 6px; padding: 1em 1.25em; margin: 0 0 1.5em; opacity: 0.95;\"\u003e\n\u003cp style=\"margin: 0 0 1em;\"\u003e\u003cstrong\u003eWhy silicon carbide.\u003c\/strong\u003e The ST STPSC6H065D has zero reverse recovery, so there is no switching spike to snub in the first place. The snubber positions are on the board anyway, for anyone substituting a silicon part. Same rectifier as the \u003ca href=\"https:\/\/etaheadphones.com\/products\/executive\"\u003eExecutive\u003c\/a\u003e supply.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 1em;\"\u003e\u003cstrong\u003eSubstituting.\u003c\/strong\u003e The footprint is standard TO-220AC, so a silicon fast-recovery diode drops straight in. Watch the current rating if you're running a large transformer — the SiC part is 6 A.\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cstrong\u003eHeatsinking.\u003c\/strong\u003e The TO-220AC tab is electrically live at the cathode. If you mount the diodes to a shared heatsink or the chassis, they need insulating hardware.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size: 1em; letter-spacing: 0.08em; text-transform: uppercase; margin: 1.5em 0 0.75em;\"\u003eCommunity\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 0.75em;\"\u003eBuild questions, mods, and finished amps — join the builders on Discord.\u003c\/p\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 0.5em; margin: 0 0 0.5em;\"\u003e\n\u003ca href=\"https:\/\/discord.gg\/fAqPWhq7Af\" target=\"_blank\" rel=\"noopener\" style=\"display: block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em; font-weight: bold; text-align: center;\"\u003eJoin the conversation\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 1.5em 0 0;\"\u003e\u003ca href=\"https:\/\/systemdump.co\/#lps\" target=\"_blank\" rel=\"noopener\" style=\"display: inline-block; padding: 0.65em 1em; border: 1px solid currentColor; border-radius: 4px; text-decoration: none; font-size: 0.9em;\"\u003eBoutique audio design →\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"System Dump","offers":[{"title":"Bridge rectifier","offer_id":52236535562536,"sku":"RECT-1","price":25.0,"currency_code":"USD","in_stock":true},{"title":"with op amp board","offer_id":52236535595304,"sku":"PCB-1+RECT-1","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/5705\/3736\/files\/RF.jpg?v=1786495368"}],"url":"https:\/\/etaheadphones.com\/collections\/partners.oembed","provider":"ETA Audio","version":"1.0","type":"link"}