Luxsin X9 Desktop DAC/Headphone Amplifier

AKM DAC chips, HP-EQ headphone correction, digital crossfeed with adjustable soundstage, fully balanced R2R volume, and a 4" 1080p touchscreen

The Luxsin X9 is positioned as a new benchmark desktop all-in-one, pairing a flagship-grade DAC/amp platform with thoughtful industrial design. A diamond-cut bevel panel frames a large laminated display, while the all-CNC aluminum chassis is built for robust thermal performance. Inside, Luxsin specifies audiophile components throughout—WIMA capacitors, gold-plated electrolytics, non-polar film caps, 0.1% low-drift resistors, OCC silver-plated internal wiring, gold-plated connectors, and a femtosecond clock—aimed at lowering noise and preserving detail.

Core signal processing centers on the AK4499EX DAC with OPA1612 stabilization, a star-routed power architecture that separates digital and analog rails, and quoted ripple disturbance as low as 40 nV. The fully differential path runs end-to-end—AK4499EX to OPA1612 IV, LPF, balanced R2R volume control, dynamic negative feedback stage, and the 6120A2 headphone amplifier—targeting THD+N of −120 dB for high resolution, clarity, and drive. A self-developed headphone impedance self-test recommends the appropriate maximum output level, and available power is rated up to 6,000 mW for versatile headphone control.

User features are equally ambitious. HP-EQ applies headphone-specific correction toward an idealized Harman target, drawing on a continuously updated database of 2,500+ models. Digital crossfeed provides a more speaker-like presentation for long sessions, and you can digitally adjust soundstage depth and width for precise imaging control without analog coloration. A 4" 1080p touchscreen runs an automotive-grade RTOS for responsive setup, on-device personalization (including multiple VU meter styles), OTA firmware updates, and wireless remote support.

In The Box

• Power Cable 
• Remote Controller 
• USB-B Cable 
• Type-C OTG Cable 
• User Manual 

Specifications

DAC Chip: AK4191EQ + AK4499EX

Audio Processor: AKM 7739 DSP

Op-Amp Chip: OPA1612

Supported Formats: DSD512; PCM up to 768 kHz / 32-bit

Bluetooth Audio Input: Bluetooth 5.0 (AAC, SBC)

USB-B Audio Input: Windows (10, 11), Android, iOS; supports DSD512 and PCM up to 768 kHz / 32-bit

Optical/Coaxial Audio Input: PCM up to 192 kHz / 24-bit; DoP64

HDMI ARC: PCM up to 192 kHz / 24-bit

Analog Input: RCA (unbalanced); maximum gain +10 dB

Analog Audio Outputs: XLR (balanced), RCA (unbalanced), subwoofer output

XLR Output Level: 4.2 Vrms @ 0 dBFS

RCA Output Level: 2.1 Vrms @ 0 dBFS

Headphone Output Level: 4–15 Vrms @ 0 dBFS

Display: 4" TFT fully laminated touchscreen (960 x 400)

Power Supply: Ultra-low-noise linear power supply

Rated Power: 25 W

Dimensions (WHD): 11.8" x 2.6" x 8.1" (300 x 65 x 206 mm)

Weight: 8.2 lb. (3.7 kg)