HXL General Specifications
DAC type
USB-C
Input
USB-C audio
DAC Chipset
SA9312 + Dual CS43131
USB transfer mode
Asynchronous dual clock
USB device class
UAC 2.0
Input bit depth
32 bit
Input sample rate
PCM: Up to 32-bit / 384kHz
DSD: DSD64 / DSD128 (DoP), DSD256 (Native)
Output
3.5mm and Balanced 4.4mm
Full-scale output level
2.06Vrms @ 600Ω (3.5mm)
4.09Vrms @ BAL
Output impedance
<0.5Ω
Recommended headphone impedance range
10Ω – 600Ω
Headphone amplifier
LME49726
Frequency response
20Hz – 40kHz ±0.1dB
SNR
132dB (BAL), 125dB (3.5mm)
THD+N
0.0002% (112dB)
Crosstalk
-129dB (BAL), -96dB (3.5mm)
Power requirement
Standby: ~75mA
Active: ~120mA (Pink noise @ 50%, 32-bit 384kHz)
Product dimensions
48 × 15 × 10 mm
Shipping weight
1.0lbs (0.5kg)
Environmental
Operating Temperature: 32 to 95 degrees F
Non-operating Temp: -4 to 113 degrees F
Relative Humidity: 5% to 95% non-condensing
Included accessories
USB-C to Lightning adapter and USB-C to USB-C cable
Setup guide
Other Components:
External low-noise crystal oscillator
Low jitter PLL internal clock
Low noise LDO regulator
Asynchronous mode operation
LED Playback Indicators
• Red: Power / PCM 48kHz
• Green: PCM 88.2 – 96kHz
• Yellow: PCM 176 – 384kHz
• Blue: DSD64 / DSD128 / DSD256
Pocket-Sized Power
The compact design of the HXL makes it easy to take anywhere while delivering serious performance. Built from precision-machined aluminum, it’s rugged enough for travel and clean enough for your desktop, proving that portable gear doesn’t have to compromise on quality.
Dual Headphone Outputs
The HXL includes both 3.5mm and 4.4mm balanced outputs, giving you flexibility for everything from sensitive in-ear monitors to demanding studio headphones. Balanced output delivers more headroom, tighter bass, and a quieter noise floor for a true hi-fi listening experience.
No Batteries, No Charging
Forget about managing extra power cords or waiting for a charge. The HXL draws power directly from your phone, tablet, or computer through a single USB-C connection, keeping your setup clean and ready to play at a moment’s notice.
Upgrade Any Audio Source
Bypassing the built-in sound card of your computer or mobile device, the HXL acts as a high-quality DAC and headphone amplifier in one. Use it to power headphones or connect directly to powered speakers or a Home Music System for a clear, detailed upgrade to any setup.
Simple, Hassle-Free Operation
No drivers. No apps. No setup headaches. Just plug the HXL into your device and start listening. LED indicators clearly display playback resolution, and the onboard 60-step volume control gives you precision without adding bulk or complexity.