Pure Sound, Pure Serenity

The Luxsin X9 is the ultimate audio solution for discerning audiophiles and high-fidelity enthusiasts. As a reference-grade DAC, headphone amplifier, and desktop preamplifier all in one, the X9 seamlessly blends powerful hardware with sleek, functional design to deliver pure and captivating sound.

Equipped with an extensive range of connectivity options including HDMI ARC, optical, coaxial, analog inputs, USB-B/USB-C, 12V trigger ports, and dual subwoofer outputs, the X9 allows for seamless integration into any audio setup. Whether for home or professional audio environments, this versatile system provides the flexibility and performance to meet the exacting standards of serious listeners.

The X9 features innovative technologies like advanced digital crossfeed for natural, speaker-like sound that reduces listening fatigue, plus adjustable soundstage depth and width controls—all implemented digitally for precise control without the distortion of analog solutions. Combined with intelligent features like real-time headphone EQ and automatic impedance detection, the X9 delivers exceptional signal control and dynamic audio performance, setting a new standard in desktop audio.

True Flagship Performance

With an ultra-low ripple of just 40nV, the motherboard features a star-shaped voltage distribution circuit that cleanly separates digital and analog power paths. The AK4499EX DAC is stabilized by an OPA1612 op-amp, providing an ultra-stable reference voltage for highly accurate signal processing. With a THD+N of -120dB, the system delivers outstanding clarity, resolution, and dynamic range.

High Quality R2R Volume Control

Engineered with a fully balanced R2R volume control circuit composed of high-precision components, it enables left-right channel balance adjustments with exceptional accuracy of 0.1dB, ensuring precise and distortion-free audio performance.

True Full Balance Architecture

Every stage, from signal input decoding and AK4499EX DAC to OP1612 IV conversion, LPF filtering, R2R volume control, dynamic feedback, and the 6120A2 headphone amplifier, is powered by a fully differential balanced circuit. This design ensures uncompromising audio performance, delivering unparalleled sound clarity, precision, and depth.

Audiophile Grade Components

To achieve ultimate sound quality, every component has been meticulously chosen. This includes premium red WIMA capacitors, gold-plated aluminum electrolytic capacitors, high-grade green non-polarized capacitors, numerous 0.1% high-precision low-temperature drift resistors, femtosecond clock, gold-plated connectors, Ohno Continuous Cast (OCC) silver-plated cables, and TI BB’s OPA1612 op-amps.

High-Resolution Audio Support

The X9 supports DSD512 and PCM 768KHz 32-bit via USB, with compatibility for Windows (10, 11), Android, and iOS systems. Bluetooth 5.0 connectivity supports AAC and SBC codecs. Digital inputs include USB-B, coaxial, and optical connections supporting up to PCM 192KHz 24-bit and DoP64 formats.

Premium DAC Implementation

Featuring AK4191EQ+AK4499EX DAC chips, XMOS XU316 USB controller, and QCC5125 Bluetooth decoding, the X9 delivers exceptional digital-to-analog conversion with comprehensive connectivity options.

HP-EQ Technology

The X9’s unique HP-EQ technology applies real-time hardware-level EQ adjustments based on each headphone’s frequency response. This enables a sound signature closely aligned with the ideal Harman curve, providing an audio experience that resonates with a wide range of listener preferences. It also supports custom EQ profiles with one-click switching, backed by a growing database of over 2500 headphone models.

Headphone Impedance Self-Check System

Luxsin’s self-developed impedance detection system automatically measures the impedance of connected headphones via the 6.35mm or 4.4mm ports and intelligently recommends the most suitable output gain setting. Utilizing advanced bypass detection technology, this system ensures precise impedance measurement with zero impact on sound quality.

Dynamic Negative Feedback

Luxsin Dynamic Negative Feedback (DNF) technology, utilizing the OPA1612 + TPA6120A2 combination, significantly reduces harmonic and intermodulation distortion, ensuring a cleaner, more transparent sound with minimal coloration while accurately reproducing every sonic detail. This advanced design enhances tonal purity and dynamic expression, delivering a refined and immersive listening experience.

Crossfeed and Adjustable Soundstage

The X9 features advanced digital crossfeed for a natural, speaker-like sound, reducing fatigue during long sessions. Users can also adjust soundstage depth and width, with both features implemented digitally to ensure precise control without the distortion or coloration typical of analog solutions.

4.0-inch 1080P Full-Color Touchscreen

Featuring a 4.0-inch 1080P full-color touchscreen, it offers a vibrant, high-definition display for an intuitive and visually engaging user experience. The display can be turned off for a completely immersive, blackout listening experience, while the device automatically enters standby mode when no signal is detected, ensuring efficiency and convenience.

Visible Rhythm

The X9 features a dynamic VU meter that visually captures every subtle fluctuation in the audio, providing a real-time graphical representation of the sound. With multiple VU meter styles to choose from, users can personalize their visual experience while enjoying the music.

Smart Control

The X9 runs on an advanced automotive-grade RTOS, ensuring stable and efficient control of all I/O interfaces. It supports both infrared remote and wireless control via phone or computer, with OTA updates for easy firmware upgrades and ongoing performance improvements.

Headphone Outputs

The X9 includes multiple headphone outputs with variable output levels from 4-15Vrms at 0dBFS. Specifications include frequency response of 20Hz-20KHz (±0.25dB), dynamic range greater than 128dB, signal-to-noise ratio greater than 128dB, and THD+N less than 0.00016% (-116dB) unweighted. Available connections include 4.4mm balanced socket, XLR4 balanced socket, and 6.35mm socket.

Analog Outputs

The unit features multiple analog output options including RCA unbalanced outputs with maximum gain of +10dB, XLR balanced outputs, RCA unbalanced outputs, and a dedicated subwoofer output. The balanced XLR outputs deliver 4.2Vrms at 0dBFS with exceptional specifications including frequency response of 20Hz-20KHz (±0.25dB), dynamic range greater than 128dB, signal-to-noise ratio greater than 128dB, and THD+N less than 0.000096% (-120.3dB) unweighted with crosstalk greater than -117dB.

The unbalanced RCA outputs provide 2.1Vrms at 0dBFS with frequency response of 20Hz-20KHz (±0.25dB), dynamic range greater than 125dB, signal-to-noise ratio greater than 125dB, and THD+N less than 0.00010% (-119dB) unweighted with crosstalk greater than -114dB.

Diamond-cut Design

The diamond-cut bevel design of the front panel, set at a 15° incline, not only enhances its aesthetic appeal but also improves ergonomic touch control. The full CNC-machined aluminum chassis ensures excellent heat dissipation, durability, and a sleek, elegant appearance.

Specifications