ETA ULI AlNiCo open-back headphone on a burl wood and resin stand, side profile showing the circular open-back grille, three-spoke driver chassis and purple voice coil

ETA ULI — AlNiCo Headphone

$3,499.00
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ETA ULI AlNiCo open-back headphone on a burl wood and resin stand, side profile showing the circular open-back grille, three-spoke driver chassis and purple voice coil
  • ETA ULI AlNiCo open-back headphone on a burl wood and resin stand, side profile showing the circular open-back grille, three-spoke driver chassis and purple voice coil
  • Macro close-up of the ETA ULI open-back driver showing the perforated black grille, three-spoke chassis bracket and purple AlNiCo voice coil
  • ETA ULI earcup viewed from above, black suede earpad surrounding the 3D-printed driver baffle with floral spoke pattern over the AlNiCo magnet
  • ETA ULI 8th-generation driver chassis engraved 'AlNiCo Motor System' and 'Ultra Low Impedance', showing the floral spoke baffle and magnet
  • ETA ULI AlNiCo open-back headphone resting flat on a black rotating stand, both earcups facing up showing the perforated grilles, three-spoke chassis and purple drivers with the headband arching behind
  • ETA ULI AlNiCo open-back headphone on its side on a black surface, one earcup facing the camera showing the open-back grille, three-spoke chassis and purple driver, with the suede earpad and headband visible
  • ETA ULI AlNiCo open-back headphone on a burl wood and resin stand, side profile showing the circular open-back grille, three-spoke driver chassis and purple voice coil
  • Macro close-up of the ETA ULI open-back driver showing the perforated black grille, three-spoke chassis bracket and purple AlNiCo voice coil
  • ETA ULI earcup viewed from above, black suede earpad surrounding the 3D-printed driver baffle with floral spoke pattern over the AlNiCo magnet
  • ETA ULI 8th-generation driver chassis engraved 'AlNiCo Motor System' and 'Ultra Low Impedance', showing the floral spoke baffle and magnet
  • ETA ULI AlNiCo open-back headphone resting flat on a black rotating stand, both earcups facing up showing the perforated grilles, three-spoke chassis and purple drivers with the headband arching behind
  • ETA ULI AlNiCo open-back headphone on its side on a black surface, one earcup facing the camera showing the open-back grille, three-spoke chassis and purple driver, with the suede earpad and headband visible
ETA ULI — AlNiCo Headphone

ETA Audio

ETA ULI — AlNiCo Headphone

$3,499.00
Out of stock

ETA ULI
Built to Order 6 week lead time.

AlNiCo — The Golden Age of Audio in a headphone today. ULI features ETA Audio's 8th generation driver, featuring the exotic magnetic alloy AlNiCo for our smoothest and most transparent sound.

What is AlNiCo?

AlNiCo is an exotic magnetic alloy comprised of Aluminum, Nickel, Cobalt and Iron. You won't find it anywhere other than from ultra-expensive boutique loudspeaker manufacturers or legendary vintage speakers from JBL, Altec, Tannoy, and others. AlNiCo offers unique electromechanical parameters compared to conventional neodymium. This imbues a sweeter decay, lower distortion, and increased efficiency. After years of research and engineering we are happy to introduce this unique and beloved technology to a headphone of the 21st century.

What is ULI?

ULI is our Ultra Low Impedance headphone. Low Impedance isn't just for electrical impedance, but acoustic impedance too. Our design criteria includes a smooth laminar wavefront with no acoustic filters or turbulent resonators, just good vibrations.

Features

Purple Driver — ETA 8th Generation Transducer by ETA Audio

  • AlNiCo magnetic alloy — high nickel content for high fidelity
  • 50 mm biocellulose paper diaphragm
  • Anodized purple driver frame — reduces distortion
  • 16 Ω impedance @ 1 kHz — proprietary silver-copper alloy underhung voice coil

Headphone

  • Fused nylon body — Multi Jet Fusion
  • Smooth transition waveguide
  • Stainless steel headband
  • Rear bias mounting system
  • Suspension strap — elastic polymer
  • Ultra-open design
What's included

More Info | Why ULI

Specs

Impedance 16 Ω @ 1 kHz
Voice Coil Silver plated copper, 16 Ω
Diaphragm 50 mm, 7 micron biocellulose dome with PU suspension
Motor Magnet AlNiCo
Weight Under 500 g
Sensitivity 81 dB/mW @ 1 kHz @ 16 Ω

Reviews

Audiophile Heaven Review

SBAF Review

Q&A

Why does my ULI driver have these dark marks?

The spot you see is where the voice coil attaches. It's normal. To the left of it you can see the silver wire we used. That's the real deal silver plated voice coil.

ULI is 81 dB sensitive. How much power does it need?

According to the professional who measured ULI, "not crazy, but something reasonable." One of the community favorite pairings, the Executive, gets the job done with only 10 mW.

What happened to the cable or pad options for ULI?

We simplified things on our end for your benefit. Instead of one pad, you get two. Instead of a cable, you get an XLR cable and a 6.35 mm cable for the tube amp aficionados.

Downloads

Brochure
Blog Post

Build Tracker

ULI Status

ULI has completed assembly and testing, and units are now shipping.

Now shipping

  1. PackagingComplete
  2. AssemblyComplete
  3. ShippingUnits shipping now

ULI

ANATOMY

Macro close-up of the ETA ULI open-back driver showing the perforated grille, three-spoke chassis and purple AlNiCo voice coil
Macro close-up of the ETA ULI open-back driver showing the perforated grille, three-spoke chassis and purple AlNiCo voice coil
ETA ULI earcup viewed from the side, black suede earpad around the 3D-printed driver baffle with floral spoke pattern and magnet
ETA ULI earcup viewed from the side, black suede earpad around the 3D-printed driver baffle with floral spoke pattern and magnet
ETA ULI earcup viewed from the side, black suede earpad around the 3D-printed driver baffle with floral spoke pattern and magnet