About the Audioengine D1

Get fantastic sound from your digital audio sources
Get fantastic sound from your digital audio sources
How do you get sound from your PC? If you're still doing it the old fashioned way, by plugging into your computer's headphone jack, then you should definitely know about the Audioengine D1. This tiny, outboard digital-to-analog converter simply connects to one of your PC's USB ports, and bypasses your computer's built-in audio circuitry.
By processing your digital music files outside the noisy environment of your computer, you'll hear far more dynamic and detailed sound that you can really savor on your headphones, powered speakers, or stereo system. The D1 also includes an optical digital input so you can enjoy similar improvements in sound with your old CD player, network music streamer, set-top box, game console, or almost any other audio device with an optical digital output.
Make your headphones sing

The plug-and-play D1 delivers sparkling clear sound from your computer to your headphones, stereo system, or powered speakers (Audioengine A2 speakers shown
A pair of good headphones can give you a real taste of high-end audio without breaking the bank. But you're unlikely to find high-end sound coming out of your headphones if you plug them straight into your laptop. That's because most computer manufacturers use low-cost, low-performance circuitry to power their headphone jacks. The headphone amp inside the D1 will quickly spoil you. It delivers richer, deeper bass and clearer highs while revealing layers of musical detail that ordinary headphone jacks obscure.
Easy plug-and-play operation
Adding the D1 to a system is simple — just plug it into any USB port on your computer, where it will install itself and be ready for use in a matter of seconds. From there, just plug in your 'phones, or connect the preamp outputs to your powered speakers or stereo and you're done. The handy volume knob lets you control listening levels for both headphone and preamp outputs.
Product highlights:
- high-performance DAC (digital-to-analog converter) for detailed, low-noise stereo sound
- built-in high-performance headphone amplifier (20 ohm to 300 ohm headphone impedance recommended)
- powered by USB connection no need for external power supply when connected to a USB source (using optical input requires optional AC USB power adapter or connection to a computer's USB port)
- double regulated USB power ensures no USB bus power variations affect audio output
- compact design for portability
- 1 USB (Type B) input for connection to a PC
- 1 optical digital (Toslink) audio input
- 1 pair of high-quality RCA audio outputs
- minijack (3.5mm) headphone output
- supported sample rates:
- USB: up to 96kHz
- optical digital: up to 192kHz
- input bit depth: up to 24-bits
- built-in driver for USB connection
- frequency response: 10 to 25kHz (±0.5 dB)
- THD: less than 0.0025%
- signal-to-noise ratio (DC to 20kHz): greater than 110 dB
- full scale output: 2V RMS
- 3-9/16"W x 1-1/16"H x 2-15/16"D (5-1/4"D including cable and volume knob)
- warranty: 3 years
- Our 60-day money-back guarantee
- If connecting to a TV, please make sure you can select "PCM" output in its audio menu. This DAC is not compatible with Dolby® Digital signals.
- MFR # D1
What's in the box:
- D1 Digital to analog converter
- 24" USB cable (USB Type-A on one end and USB Type-B on the other)
- Cloth drawstring bag
- Setup guide
- Audioengine product brochure
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More details on the Audioengine D1

Features & specs
Design | ||
---|---|---|
Type | Desktop/Component | |
Built-in Rechargable Battery | No | |
Built-in Headphone Amplifier | ||
Output Power | N/A | |
Output Impedance (Unbalanced) | N/A | |
Output Impedance (Balanced) | N/A | |
Audio Specs | ||
Bit Depth (USB) | 24 | |
Max Sampling Rate (USB) | 96 kHz | |
Bit Depth (S/PDIF) | 24 | |
Max Sampling Rate S/PDIF | 192 kHz | |
S/N Ratio (Unbalanced, in dB) | 110 | |
S/N Ratio (Balanced, in dB) | 0 | |
THD (Unbalanced) | 0.0025% | |
THD (Balanced) | N/A | |
Supported File Types | ||
PCM | Up to 192kHz | |
DSD | N/A | |
DXD | N/A | |
MQA | N/A | |
Inputs | ||
Total Inputs | 2 | |
USB | Type B | |
Optical Digital | 1 | |
Coaxial Digital | None | |
3.5mm Digital | None | |
Stereo RCA Analog | None | |
Stereo 3.5mm Analog | None | |
Stereo XLR Analog | None | |
Headphone Outputs | ||
3.5mm Unbalanced | 1 | |
1/4-inch Unbalanced | None | |
4.4mm Balanced | None | |
XLR4 Balanced | None | |
Other Headphone Outs | None | |
Line Level & Digital Outs | ||
RCA Line Out | 1 | |
3.5mm Line Out | None | |
XLR Line Out | None | |
Subwoofer Out | None | |
Optical Digital Out | None | |
Coaxial Digital Out | None | |
Wireless Connectivity | ||
Bluetooth | No | |
Wi-Fi | No | |
Apple-compatible | No | |
Android-compatible | No | |
General Info | ||
Width (inches) | 3-9/16 | |
Height (inches) | 1-1/16 | |
Depth (inches) | 5-1/4 | |
Weight | 1 lbs. | |
Parts Warranty | 3 Years | |
Labor Warranty | 3 Years |
Product Research
Features
Overview: The D1 DAC (Digital to Analog Converter) is designed to connect between your computer's USB port or an optical digital output, and your audio system or headphones. It can also be used as a portable DAC (soundcard) with a laptop computer. The two signal inputs are a USB Type-B port (USB Type-A to USB Type-B cable included) and an optical digital (Toslink) jack. There are two outputs, rear panel analog stereo RCA jacks and a front panel 3.5mm headphone jack. Both outputs are controlled by the rotary volume knob on the front panel and the RCA outputs are muted when headphones are plugged into the front panel mini-jack output. The small switch on the front panel lights when the D1 is turned on.
Note: If connecting to a television set's optical output, please make sure that you are able to select PCM as the default optical out audio format from your television's Audio menu. This DAC is not compatible with multi-channel audio signals and will not work with televisions that do not output PCM.
Specifications:
- Power Requirement: 5V/130 mA; powered by USB (USB connection required for power even when using the optical digital input to transfer audio signal)
- USB Input: rear panel, Type-B; compatible with USB 1.1 and above; USB cable included
- Optical Input: rear panel, Toslink
- Digital Signal Compatibility:
- USB: up to 24-bit/96 kHz PCM stereo
- Optical: up to 24-bit/192 kHz PCM stereo
- Line Output: rear panel stereo RCA; 2.0 volts RMS
- Frequency Response: 10 Hz to 25 kHz, +/-0.5 dB
- S/N: >110 dB
- THD+N: <0.0025%
- Headphone Output: front panel, 3.5mm stereo mini-jack; compatible with headphone impedance from 20Ω to 300Ω
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Customer Q&A
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The D1 is a must buy for anyone looking to get more out of their current setup. As others have said, bass is more pronounced and full, the highs are crisp. Awesome product, not to mention they power my (250 ohm) headphones nicely.
Jace from Honolulu, HI