Luxsin X8 DAC & Headphone Amp

Luxsin X8 - Intelligent DAC & HP AMP

It has been six months since Luxsin released its first product, the X9. Developed over
two years by the Luxsin team, the X9 is a reference-grade DAC and headphone
amplifier created with a strong focus on sound quality, stability, and long-term
reliability. At launch, the X9 introduced several features that were considered worldfirsts
at the time, and it has since been well received by users.
Beyond its sonic performance, the X9 also integrated a range of practical functions,
presented through a clean and intuitive user interface. Since release, we have
continued to collect user feedback and, based on real-world usage, delivered multiple
firmware updates and functional refinements. We sincerely appreciate the feedback
and support from the community.
In fact, development of our second product began even before the official release of
the X9. Throughout this process, we carried forward and further refined many of the
features that proved reliable and useful on the X9. At the same time, we introduced
several new ideas and made significant changes to both the software architecture
and hardware design.
With that background, we would like to introduce Luxsin’s second product :
the X8, Intelligent DAC & Headphone Amplifier.
Parallel DAC | 8 × CS43198
The X8 features eight Cirrus Logic CS43198 DAC chips in a true dual-mono parallel architecture, with
four DACs operating in parallel per channel. Left and right channels are fully independent in power
supply, circuit layout, and signal path, minimizing crosstalk and interference.
The parallel analog outputs are precisely summed to reduce noise and improve dynamic range, signalto-
noise ratio, and low-level detail, resulting in stable imaging and clear spatial presentation.
A dedicated high-speed data buffering and distribution circuit ensures all DACs operate within the same
reference clock domain, maintaining precise synchronization and preventing timing mismatch.
DAC Dedicated Shielding
Each of the eight CS43198 DACs is equipped with a custom shielding cover, which isolates the DACs
from digital circuitry and high-frequency interference while assisting heat dissipation and thermal
balance. This design reduces noise and jitter, ensuring stable and consistent performance during longterm,
high-resolution playback.
Digital Audio Core
The DigitalAudio Core in the X8 is a high-performance processing module deeply customizedby Luxsin
and the first of its kind to be applied in a professional audio product. Built on a dual-core HiFi-5 DSP and
ARM STAR architecture, with large on-chip SRAM and a DSP operating at over 500 MHz, it delivers the
computational headroom required for complex real-time audio processing and advanced tuning
algorithms. Its scalable design also enables edge-level AI audio processing, equipping the X8 with
strong digital audio capabilities and long-term potential for continuous feature expansion.
The AI Era of PEQ
World's First AI Assisted EQ Tuning, a revolutionary way to personalize your music. The AI instantly
tailors the overall sound profile or fine tunes specific details with a simple voice/text command,
delivering effortless, precise results. Professional grade tuning is now accessible to all. Control it
seamlessly through the mobile app or PC web UI, with full multilingual support, for a truly flexible and
intelligent listening experience.
Advanced HP-EQ system
HP-EQ is Luxsin’s proprietary acoustic technology that performs hardware-level EQ calibration, aligning
your headphones’ frequency response precisely with the Harman curve or other preset target curves.
Save your own EQ presets and switch between sound signatures instantly, unlocking multiple
“personalities” from a single pair of headphones. With a growing database of over 2,500 headphone
models, HP-EQ delivers accurate, personalized audio matching for every listener.
Comprehensive DSP Functions
Crossfeed
Simulates natural speaker listening by blending left and right channels, reducing ear fatigue and
enhancing sound realism.
Stereo Width Adjustment
Freely control soundstage width from intimate to expansive, to perfectly match different music genres
and personal preferences.
Tone Adjust
Fine-tune the overall tonal character with intuitive controls, shaping the sound to match your listening
taste quickly and easily.
Loudness
Intelligently compensates for low- and high-frequency details at lower volumes, ensuring balanced,
full-bodied sound at any listening level.
Full-Interface Impedance Detection
The upgraded headphone impedance detection system now covers all output interfaces (XLR4,4.4mm,
and 6.35mm) enabling precise impedance auto-detection and automatic matching of the optimal gain
setting. UtilizingLuxsin’s proprietary bypass detection technology, the system operates completely
isolated from the main audio path, guaranteeing absolutely no impact on sound purity. Users enjoy both
accurate impedance matching with smart gain adjustment and uncompromised high-fidelity audio
quality.
Upgraded Output Power
The X8 employs a optimized headphone amplifier design using multiple OPA1612 op-amps and
TPA6120A2 high-current drivers to independently drive each channel, delivering a powerful output of
L+R ≥ 4800 mV + 4800 mV with extremely low distortion and high linearity. It effortlessly drives even the
most demanding flagship headphones, offering strong dynamics, fast transients, and precise detail
retrieval.
Variable Voltage Linear Power Supply
Adopts a fully separated linear power supply, with digital and analog circuits
independently powered. This design isolates noise coupling and interference
between circuits from the source, significantly enhancing sonic purity, background
darkness, and laying a stable, clean power foundation for overall sound quality. The
system integrates multiple voltage and current monitoring sensors for real-time power
supervision. It also supports an adjustable dual analog voltage design (12V and
15V), further improving the flexibility and controllability of the power system.
Signature Exterior Design
The X8 continues Luxsin’s classic design language, featuring a 4.0-inch 1080P
(960×480) full-color touchscreen that delivers sharp, detailed visuals and a
smooth, intuitive user experience. Its front panel is tilted at a 15° ergonomic
angle, enhancing visibility and ease of operation in daily use. Crafted from a
solid CNC-machined aluminum chassis, it offers both premium tactile feedback
and exceptional thermal dissipation
User Settings Memory
Automatically saves independent settings for each output port, including key parameters such as
volume, PEQ, sound effects, and crossfeed. When switching outputs, the system instantly recalls the
corresponding configuration, eliminating the need for readjustment and delivering a true plug-and-play
experience.
Luxsin Controller
The X8 supports multiple flexible and convenient control methods, including
mobile device apps (Android/iOS), computer web-based control (Windows/macOS), and an optional IR
remote (sold separately). The device firmware supports both local and online updates, ensuring
continuous optimization and an ever-evolving user experience.
Versatile Audio Connections
The X8 is equipped with a range of digital audio input interfaces. including USB-B/C, Optical, Coaxial,
and IIS, to accommodate various source devices. The IIS input supports up to eight custom
configurations, ensuring compatibility with multi-type digital sources from different brands. It also
features 12V Trigger in/out terminals, enabling seamless integration into existing audio systems for
smoother device synchronization and automated control, making the entire system easier and more
efficient to operate.