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Audioengine D1P Portable USB digital-to-analog converter/headphone amplifier

Item # 772D1P

This potent, portable DAC uses a stout DAC chip and headphone amplifier to deliver rich, detailed sound.

This potent, portable DAC uses a stout DAC chip and headphone amplifier to deliver rich, detailed sound.

Item # 772D1P

Ships free today

In stock
$169.00

About the Audioengine D1P

Archer A.

Audioengine's latest portable powerhouse

I've always enjoyed Audioengine's product offerings, especially their digital-to-analog converters. Their newest DAC, the D1P, is the successor to the company's affordable D1. It's an awesome little DAC that I've enjoyed my time with immensely.

Audioengine's latest portable powerhouse

I've always enjoyed Audioengine's product offerings, especially their digital-to-analog converters. Their newest DAC, the D1P, is the successor to the company's affordable D1. It's an awesome little DAC that I've enjoyed my time with immensely.

So, what's new?

The D1P has the same compact profile of its predecessor and an even lighter weight, making it the perfect audio companion whether you're at the office or lounging on the couch. It's built around a powerful ESS Sabre DAC chip that does a fantastic job of cleaning up digital 1s and 0s and turning them into detailed, nuanced sound.

The headphone amplifier inside also does a great job of powering just about any cans you might use. I threw everything at it from entry-level Grados to high-end Focals, and it made every pair I connected open up nicely.

Supports a plethora of file types

Source compatibility is often a concern for me when I'm shopping for DACs, so I was happy to see that the D1P supports PCM, FLAC, DSD, and MQA. An LED indicator on the front visually confirms the audio quality when you're playing something.

Portable Power

This DAC is also powered by your device, instead of requiring a separate power supply or internal battery. I've connected it to my home computer, my wife's laptop, and both of our smartphones with fantastic results. No matter what source we connected the D1P to, it played beautifully. It's also pretty efficient with its power drain when connected to smartphones.

Connections and switches

The connections on the D1P are straightforward. There's a 3.5mm headphone output on the front, as well as a USB-C input. The rear has a stereo pair of analog RCA outputs and an optical digital input. The front panel also has an output switch that lets you tell the DAC whether it's connected to a pair of headphones or speakers, and it adjusts its output accordingly.

Hands-on (and ears-on) with the D1P

The D1P arrived for me to audition in a well-packaged box. After breezing through the owner's manual, I connected it to my PC first, then my phone. Next, my wife let me try it on her phone and her gaming laptop. I experienced zero hiccups across the board.

Fantastic sound reproduction on different headphones

I'm a headphone fanatic, so I wanted to see how the D1P did with everything from entry-level headphones to high-end pairs. I'm pleased to report that this little-DAC-that-could exceeded my expectations on everything I tried. It delivered spectacular sound on the easy-to-drive Grado SR125X all the way up to the beefy Cleer Next and some higher-end closed-back Focals that I own. For the purposes of this hands-on review, I decided to stick with the Cleers since I enjoyed their airy, open-backed performance.

My diverse playlist

I started my listening session off with a live rendition of "Lion" by Brandon Lake and Elevation Worship. I am not exaggerating when I say that I got chills on the opening verses. I've listened to this track on other DACs, but this time I picked out the crowd singing along, plain as day. The width of the soundstage impressed me too, with Chris Brown and Brandon each taking their respective sides of the stage.

I then moved onto Sleep Token's "Take Me Back to Eden," which I've played many, many times since the album's release. The title track's chorus gets progressively more layered as the song goes on. By the final chorus, things tend to blend together on weaker DACs and headphones. With the D1P, each vocal and guitar layer were beautifully distinct, with a gritty texture that I hadn't picked up on during previous listenings.

The final track I played was "Kaidoku Funou" by Jinn, a Japanese rock track released in the early 2000s. It's raw, layered, and a bit roughly produced. The D1P performed admirably and did a great job of separating all the instruments in the song. It also gave the track a surprising amount of depth. With other setups the drums and vocals can sit on top of each other, but the D1P put the drums a little behind lead singer Hiitan and allowed her voice to shine.

All-in-all, the D1P is a powerful little DAC that could see using for years to come. It's impressive that a sub-$200 digital-to-analog converter can perform so well across a wide range of headphones and genres.

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Product highlights:

  • portable USB digital-to-analog converter
  • ESS Sabre ES9219C 32-bit/384kHz DAC chip with Hyperstream® II QUAD DAC™ architecture
  • supported sample rates:
    • PCM: up to 32-bit/384kHz; optical up to 24-bit/192kHz
    • DSD: up to 11.2 MHz (DSD256)
    • MQA renderer up to 8x
  • works with most USB-C devices, including Android™ smartphones and Windows® and Mac® computers
    • Lightning® adapter for iPhone® included
Other info:
  • 2.05-volt RMS output
  • 3.5mm output for connecting DAC to headphones
  • stereo analog RCA output for connecting to receivers, amplifiers, and more
  • optical digital input for connecting TVs and home theater components
    • no battery; uses USB source device for power
  • onboard volume knob for smooth level adjustments
  • sampling rate indicator verifies source quality
    • white: PCM 32kHz-48kHz
    • green: PCM 88.2kHz-192kHz; DSD64
    • blue: PCM 352.8kHz-384kHz; DSD128
    • purple: MQA
  • headphone/speaker output switch
  • frequency response: 20-40,000 Hz ±0.1 dB
  • signal-to-noise ratio: 121 dB
Dimensions and warranty:
  • 3"W x 1"H x 2-1/2"D
  • weight: 0.85 lbs.
  • warranty: 3 years
  • MFR # D1P

What's in the box:

  • Portable headphone amplifier/DAC
  • 19" USB-C to Lightning cable
  • 20" USB cable (USB-C plugs on both ends)
  • Microfiber pouch
  • Quick Start Guide
  • Audioengine brochure

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More details on the Audioengine D1P

Research Team

Features & specs

Design
Type Portable
Built-in Rechargable Battery No
Built-in Headphone Amplifier
Output Power 2.05V
Output Impedance (Unbalanced) ---
Output Impedance (Balanced) ---
Audio Specs
Bit Depth (USB) 32
Max Sampling Rate (USB) 384kHz
Bit Depth (S/PDIF) 24
Max Sampling Rate S/PDIF 192kHz
S/N Ratio (Unbalanced, in dB) 121
S/N Ratio (Balanced, in dB) ---
THD (Unbalanced) Not given
THD (Balanced) Not given
Supported File Types
PCM up to 384kHz
DSD DSD 256
DXD ---
MQA Yes
Inputs
Total Inputs 2
USB USB-C
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 ---
Android-compatible ---
General Info
Width (inches) 2-9/16
Height (inches) 1
Depth (inches) 3-13/16
Weight 0.244 lbs.
Parts Warranty 3 Years
Labor Warranty 3 Years

Product Research

Features

Overview: The Audioengine D1P Digital-to-Analog Converter (DAC) is a portable headphone amp and 32-bit DAC to provide a premium listening experience. It can be used with your smartphone, or with your computer to bypass its internal soundcard. It is compatible with Android and iOS devices, as well as Windows and macOS computers. It has USB-C and Optical Digital (Toslink) inputs, plus 3.5mm mini-jack and stereo RCA analog outputs. The DAC comes with a USB-C cable, a USB-C to Lightning cable, and a microfiber storage pouch. The D1P DAC is covered by a 3-year Limited Warranty.

Design: The D1P is built with premium components to provide superior performance and sound quality. It has a Savtech SA9312 USB chip, an ESS ES9219C digital-to-audio converter, and a Cirrus Logic CS8416 optical input. The D1P supports a wide variety of high-res audio formats:, including FLAC, PCM, DSD, and MQA.

MQA Renderer: The Audioengine D1P uses MQA Renderer technology to an MQA Core signal and complete the final unfold of an MQA file. MQA (Master Quality Authenticated) audio files are stored original master recordings that can be downloaded or streamed, to give you audio the way the artist intended.

LED Indicator: The front panel has an LED indicator that glows to indicate the status, format, and sampling rate (see Note below):

  • White: PCM 32kHz to 48kHz
  • Green: PCM 88.2kHz to 192kHz, DSD 64, Optical
  • Blue: PCM 352.8kHz to 384kHz, DSD 128
  • Purple: MQA Rendering
Note: When connected to a Mac or PC, the indicator light reflects what your system's audio quality output is set to, not the bitrate of the specific track that is playing.

Power Requirements: The D1P is powered through the USB port (5V) and has a minimal power draw. It can be powered by your mobile device or computer. If you are using the optical input, any 5V DC USB-C power supply will suffice.

Break-in Period: The D1P will sound better over time. Although it will sound great out ot the box, Audioengine recommends you play the DAC for 40 to 50 hours before doing any critical listening. This "break-in" period will allow the internal components to reach their peak performance.

Specifications:

  • Frequency Response: 20 Hz to 40 kHz, +/-0.1dB
  • S/N Ratio: >121 dB (10K)
  • Headphone Output: 3.5mm mini-jack, compatible with headphones 10Ω to 600Ω
  • Line Output: Stereo RCA; 2.05 volts RMS max.
  • Digital Signal Compatibility:
    • USB-C: up to 32-bit/384 kHz PCM stereo, DSD 64, DSD 128
    • Optical: up to 24-bit/192 kHz PCM stereo
  • Power Requirement: 5V via USB-C
  • Power Consumption: ~102mA (normal), ~121mA (with pink noise at 50% volume, 32-bit 384kHz)
  • Operating Temperature: 32°F to 95°F
  • Non-Operating Temperature: -4°F to 113°F
  • Dimensions: Width 2.56", Height 0.949", Depth 3.756"
  • Weight: 3.9 ounces

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