D1 24-bit DAC/Headphone Amp (Refurbished)


D1 24-bit DAC/Headphone Amp (Refurbished)

The D1 is a premium 24-bit DAC and headphone amplifier for your computer, TV, and more.



Before you go...

Win A Free B2 Home Music System w/ Bluetooth aptX-HD!

Enter your email below and you'll be on the list every time we give one away!

Just Take Me To Amazon


Out of stock

- Enter your email to be notified once this product is back in stock.

Jump to a section

Fearless Shopping

  • 10-second checkout with Amazon or Paypal
  • Fast & free shipping
  • We pay sales tax, if applicable
  • 30-day audition & easy returns
  • 3-year warranty & superior support
  • Guaranteed smiles
  • High-Performance Headphone Amp
  • USB Audio Input
    USB Audio Input
  • Optical Audio Input
  • RCA Input
    Analog Audio Output
  • USB Audio Input
    Plug & Play
D1 Headphone Amp

Perfect for providing high quality audio to speakers or headphones, the D1 is a premium 24-bit DAC and headphone amplifier for your computer, TV, and more. The D1 connects to your computer’s USB port or optical output without any software to download, making the D1 quick and easy to set up.



High-performance DAC and headphone amp
USB and optical inputs
Stream bit-perfect 24/96 HD audio
Desktop or portable DAC
Mac or PC, no driver to install

Audioengine D1
Audioengine Headphone Amp

Audioengine D1 Premium 24-bit DAC (digital-to-analog converter) allows you to bypass your computer’s soundcard or headphone output and send audio through USB or optical.

D1 will process digital audio at any bit depth up to 24 bits and any sample rate to 192kHz. With it’s high signal-to-noise ratio and low distortion, the D1 delivers sound quality generally heard only in more expensive DACs. The high-performance headphone output was designed for a wide range of headphones and will satisfy even the most demanding headphone enthusiasts.

D1 is the perfect digital interface between your computer and music system and will improve the sound of ALL your music.




The D1 accepts inputs from both USB and optical and has outputs for any audio system or headphones. The D1 DAC is the perfect way to get great-sounding music not only from your computer but from your TV, Apple TV, Blu-ray player or CD player. DirecTV and Comcast also have optical outputs for high-res audio.

Setup is easy and no special software, app, or driver is needed, making D1 a true plug-and-play digital audio solution.


The D1 reflects traditional Audioengine design and the audio fidelity is typical of Audioengine’s commitment to great sound at an affordable price. Even if you’re not an audio enthusiast we guarantee your music will sound better!

What's in the Box

Questions & Answers

  • How easy is it to set up the D1?

    To get things up and running, you would just need to first connect the included USB cable from your computer's USB port to the D1; then you'll need to connect the RCA outputs to your powered speakers/ AV receiver or your headphones to the headphone output on the front of the D1.

    Next, if using a Mac, you will need to go to System Preferences/Sound, and select "Audioengine D1"; if you're using a PC, no setting changes are needed as the computer will automatically find the USB driver. Finally, you'll just need to play music from iTunes or your favorite media player and that's it! Setup really is that easy!

  • How can the D1 external computer DAC improve my music?

    The D1 is essentially a very high-end external sound card. Its components and implementation of those components make it more capable than what might be built into a computer, not to mention the benefit of moving those sensitive components outside and away from the potentially noisy interior of your computer. All of this means the signal your speakers receive will be clearer, with a lower noise-floor, and with a more pronounced dynamic range over your internal sound card.

  • How powerful is the headphone amp in the D1? Will it drive my headphones?

    The D1 includes a headphone amplifier based on the ES9601C SABRE low noise opamp.  This headphone amp is able to provide low-impedance, high-fidelity audio to a wide range of headphones.  We've found the sweet spot for the D1 is headphones that measure between 20 and 300ohms.  The resistance of a pair of headphones can tell you a little bit about how much power they need, though other variables do have an impact as well. We have heard from customers with headphones measuring as much as 600ohms who say they're happy with the output of the D1.

  • Can I connect the D1 to my Android device?

    The D1 will work with any device that can operate as a USB host, can provide enough power via USB, and includes generic drivers for standard USB audio playback.  A device with Android 5.0 or later should have both USB host mode and native plug-and-play functionality for USB audio, so you could connect the two together using a USB OTG cable along with a standard USB cable.

  • Can I use the Airport Express with a D1 DAC?

    You should be able to incorporate the Airport Express with the D1 easily. All you would need to do is run an optical cable from the output of the Airport Express into the optical input of the D1. Then all you would need to do is connect the D1's RCA output into the analog input of your Audioengine Speakers or your AV receiver.

Inspired By How & Where You Listen

Which music system is best for you?

Take The Quiz

Listen for 30 days.

Love it, or return it for a full refund.
30-day trial is only available for product purchased directly online from the Audioengine store.

Customers Also Bought

Additional information

Weight 1.5 lbs
Dimensions 10.8 × 7.0 × 2.5 in