ADL X1 USB DAC and Headphone Amp

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24/192 USB DAC Headphone Amplifier iDevice Digital Output Interface “On the Go Or In Your Stereo”
Goes Anywhere

• Stacks Easily
• Rechargeable Li-ion Battery
Digital Inputs For iDevices
• Androids
• PCs
• Superb Sound!

ADL – Alpha Design Labs – creates innovative, smart-looking components for computer-based systems as well as personal and portable electronics. Tokyo-based ADL by Furutech™ aims high using the best materials and innovative design for an expanding line of Japanese-designed precision products including the superb sounding 24/192 ADL X1 Headphone Amp.

Headphone listening is an intimate sonic experience and most enthusiasts employ headphone amplifiers and a good pair of ‘phones– like the ADL H118! The headphone amplifier determines the quality of sound in hand with the headphones.

The X1 is small, discrete but highly specified with inputs supporting iOS and Android digital at up to 16/48 via 30pin and Lightning or micro-B docking connectors for iPod, iPhone, iPad and Android devices. The X-1 also runs 24/192 SPDIF with high-resolution files from PC via the PC’s USB output. There’s an analog line-level 4-pin 3.5mm input and a 4-pin 3.5mm output for headphones in the 12~600 ohm range. The 4-pin input supports 3.5mm Remote and Mic Earphones. The 3.5mm TOSLINK optical output delivers SPDIF up to 24/192. There’s a convenient GND TRRS switch making it easy to change from one 4-pin set of ‘phones to another.

Beautifully-finished aluminum and plastic casing.
Supports iOS , Android Device , PCs
Fits in the palm of your hand
Enjoy music anywhere, on your desk or on the go
Doesn’t draw power from connected iDevice battery
Can be used as emergency iDevice charger
Headphone and output can connect to home stereo system
Line input improves sound of portable analog audio sources
Can be switchable to match different smartphone types

USB Mini-B socket: For USB A output from a PC for music and to charge battery
USB Mini-B socket: For USB Micro-B output from an Android
device for music
USB A socket : For iDevice music output via 30-pin or Lightning cables
Headphone and line out: Combined 3.5mm phone jack for headphones and mini optical jack for optical output
Line input: 3.5mm phone jack for analog input (switched)

High-quality volume control and On/Off switch (front)
Gold-plated 3.5mm analog line input (switched) or gold-
plated USB digital input for iPod/iPhone/iPad
Runs and recharges via PC’s USB or an AC/DC switchingpower adapter
4-layer printed circuit board with copper thickness >1oz
USB A socket: For 16/48 30-pin or Lightning iDevices
USB Mini-B socket: For Android devices or 24/192 PCs
3.5mm Optical Output: For 24/192 SPDIF (Max)
Attractive aluminum cover and plastic body
Max headphone output levels (1%THD 1KHz):
78mW (12 ohm) 94mW (16 ohm) 110mW (32 ohm)
98.6mW (56 ohm) 23mW (300 ohm) 16mW (600 ohm)
Dimensions: 68 (W) x 118 (D) x 16.5 (H) mm
Weight: 120g Approx.

Controls and Indicators
Volume: Rotary-type variable resistor with power on/off
Charging Indicators: Dual-color RED and GREEN LED RED indicates charging/GREEN indicates full charge/flashing indicates low charge
GND TRRS Switch: Switchable to match different 4-pin headphone types (Sony or Apple)
Top Panel LED : 44.1/ 48/ 88.2/ 96/ 176.4/ 192 KHz sampling
rates indicator
Input Selection: Switchable between USB A socket (iOS) or USB Mini-B socket (Android and PC)

Technical Specifications
High-performance ESS-ES9023 24bit/192kHz DAC chip
24-bit/192kHz XMOS XS1-L01A-TQ48 High-performance Streaming Controller supports ASIO and Asynchronous mode
USB 2.0 High Speed compliant & 8/16/32/44.1/48/88.2/96/176.4/192 kHz sampling rates supported
Maxim MAX9724C Power IC
Low-RF Direct-Drive Stereo Headphone Amplifier with 1.8V compatible shutdown
TI- LMV832 Dual 3.3 MHz EMI-Hardened Low-Power CMOS OP AMP
Power Supply 1: DC 5V 2000mA
Power Supply 2: DC 3.7V 1650 mAh Li-ion rechargeable battery


Delivery and Returns

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ADL by Furutech

DAC Specification

-90dB (A-wtd)
ESS ES9023
ESS ES9023
24 Bit
Maximum Sampling Frequency:
192 kHz
Headphone Amplifier:
Dimensions (WxHxD mm):
6.8 x 11.8 x 1.65


  • UK from: £1.50
  • EU shipping from: £2.95
  • International from: £3.95
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Our advantages

  • Fast and insured shipping
  • 14 days money back guarantee
  • VAT Free Purchases for non EU residents
  • London Showroom - Largest selection of headphones, earphones and portable players in the UK.

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