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ADL A1 Portable DAC and Headphone Amplifier

The A1 DAC and headphone amplifier from Alpha Design Labs is a true Audiophile product with DSD decoding and top quality amplifier and OP Amp components. Beautifully and stylishly designed and created with cutting edge Japanese craftsmanship. Enjoy a warm and smooth yet detailed sound from even your highest resolution music files.

Made for portable audio with Android and audiophile PC and Mac audio.

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SKU: ADL-A1 Categories: ,

R 8,600.00

Out of stock

Perfect for music on the go, for PC Audio or in a Hi-Fi System

Some digital enthusiasts require small, portable DACs and headphone amps because they’re always on the move from location to location. Others need flexibility with their digital gear, especially the ability to insert a headphone amp into virtually any system and achieve impressive sonic performance. The new ADL A1 headphone amplifier/ DAC is designed for both of these digital enthusiasts – even if they’re the same person!

Hi-Res Audio DSD Decoding

The new ADL A1 is a high-resolution portable headphone amplifier and DAC that can be used with Android devices. The A1 is DSD-capable when used with either Mac or PC. The high-resolution sound that can be achieved through the A1 makes it perfect for portable audio enthusiasts who use the highest quality headphones to delve deeply into a recording. It’s also ideal for those who want to run DSD 2X on either a laptop or a desktop.

Portable, Yet Packed With Audiophile Features

While the ADL A1 is certainly small enough to be portable and convenient, it’s also loaded with innovative features such as:

  • USB Mini-B socket for USB A output from a PC/Mac for music and to charge the battery
  • USB A socket for Android music devices via OTG cable
  • Optical and line out that combines a 3.5mm phone jack for line out with a mini-jack for optical output
  • Additional 3.5mm jack for headphone output
  • USB 2.0 high-speed compliance with DSD (2.8M and 5.6M data both supported), with the ability to sample 8, 16, 32, 44.1, 48, 88.2, 96, 176.4 and 192 kHz sampling rates, indicated by LEDs on the front panel
  • Switchable between USB-A, USB-mini B and optical inputs

7.5 Hours of Battery Life

The portable audio enthusiast will also appreciate the A1’s long battery life. While the battery in the A1 lasts approximately 7.5 hours after a full charge, it can be completely recharged in around 5 to 5.5 hours. That provides an exceptional amount of flexibility for playback while on the go. Downtime and scheduling concerns will be minimised.

Top Quality Components & Cutting Edge Japanese Technology

The ADL A1 is a truly versatile portable headphone amplifier and DAC. It’s flexible enough to be used in a countless number of applications, it’s small enough to fit just about anywhere and the sound quality is extraordinary. You’ll appreciate the signature Furutech sound in every component offered by ADL – smooth yet detailed and focused. The ADL A1 is clearly an example of innovative Japanese design at the cutting edge of technology. Are you ready for it?


  • USB Mini-B socket: For USB A output from a PC/MAC for music and to charge the battery
  • USB A socket: For Android Device music output via OTG cable (USB A to micro-B type)
  • Optical and Analog out: Combined 3.5mm phone jack for Analog out and mini optical jack for optical output (24bit/192kHz Max.)
  • A second 3.5mm phone jack for headphone output (12~300 ohm range)
    (When using both 3.5mm headphone Analog out jacks simultaneously it is advisable to use near impedance headphones)
  • Optical Input: For digital signal from an external device (24bit/192kHz Max.)
  • Line input: 3.5mm(4-pin) phone jack for analogue input (switched/When headphones are plugged in there is no Android signal output)
  • Switchable between USB-A input (Android /Line-in), Optical Input and USB-mini B (PC/MAC)

Top Features:

  • Supports DSD64 (2.8MHz) and DSD128 (5.6MHz)
  • Digital inputs for Android, PCs, Optical (Optical out supports Android digital signal)
  • DD Converter (3.5mm TOSLINK optical output)
  • High-performance 24-bit/192kHz DAC chip
  • supports ASIO and Asynchronous mode
  • Low Jitter
  • Fits in the palm of your hand
  • Enjoy music anywhere, on your desk or on the go
  • Doesn’t draw power from connected Android Device battery
Digital-Analogue-Conversion Chip

High-performance CIRRUS LOGIC CS4392K 24bit/192kHz (accepts PCM data and DSD audio data )

Amplifier Chip

Texas Instruments TPA6130A2 Headphone Amplifier chip

USB Controller

VIA VT1736 32bit/192kHz
USB 2.0 High Speed compliant
Accepts DSD 2.8M or 5.6M signal
44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz sampling rates supported


Texas Instruments LME49726 High Current, Low Distortion, Rail-to-Rail Output Audio Operational Amplifier

Signal-to-Noise Ratio

98 dB

Max Headphone Output Levels (at 1%THD 1KHz)

70mW (12 ohm), 80mW (16 ohm), 65mW (32 ohm), 38mW (56 ohm), 9mW (300 ohm)

Charge Time

Approx. 7 hours (DC 5V, 0.5A USB bus power)
Approx. 5 – 5.5 hours (AC/DC 5V, 1.0-2.0A switching adaptor)

Music Playback Time

Up to 7.5 hours when fully charged


68(W) x 118(D) x 16.5(H)mm


150 g