{"product_id":"luxsin-x9-headphone-amplifier-dac-pre-amplifier-ex-demo","title":"Luxsin X9 Headphone Amplifier DAC \u0026 Pre Amplifier","description":"\u003cp\u003eThe \u003cstrong\u003eLuxsin X9\u003c\/strong\u003e is a reference-grade DAC, headphone amplifier, and desktop preamplifier designed for audiophiles seeking flagship signal purity, advanced digital signal processing, and extensive system connectivity. Engineered around an AKM flagship decoding pipeline combining the AK4191EQ digital delta-sigma modulator with the AK4499EX DAC, the X9 utilizes XMOS XU316 USB processing, an AKM 7739 DSP, and TI OPA1612 operational amplifiers to deliver ultra-low distortion (THD+N \u0026lt; 0.000096%) and an exceptional dynamic range exceeding 128 dB.\u003c\/p\u003e\n\u003cp\u003eHoused in a full CNC-machined aluminium chassis with a 15° inclined diamond-cut front panel, the X9 features a 4.0-inch 960x400 fully laminated colour touchscreen with customizable VU meters. Highlights include a fully balanced R2R volume control circuit for 0.1dB channel tracking accuracy, a self-checking Headphone Impedance Auto-Detection system, digital crossfeed and soundstage adjustments, and a proprietary \u003cstrong\u003eHP-EQ system\u003c\/strong\u003e containing real-time EQ target profiles for over 2,500 headphone models tailored toward the Harman curve. Equipped with 4.4mm, 4-pin XLR, and 6.35mm headphone outputs alongside RCA\/XLR preamp outs, dual subwoofer outputs, and HDMI ARC, it functions seamlessly across desktop and home theatre setups.\u003c\/p\u003e\n\u003ch3\u003eKEY FEATURES \u0026amp; PROPRIETARY TECHNOLOGIES\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAKM AK4191EQ + AK4499EX Flagship DAC Architecture:\u003c\/strong\u003e Separates digital modulation and analogue conversion stages, backed by an XMOS XU316 USB receiver, Accusilicon femtosecond clocks, and TI OPA1612 IV conversion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHP-EQ Harman-Target Tuning System:\u003c\/strong\u003e Integrated DSP database with over 2,500 headphone profiles offering real-time hardware-level frequency adjustments and custom EQ presets via OTA updates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto-Impedance Detection \u0026amp; Gain Recommendation:\u003c\/strong\u003e Measures headphone load impedance via 6.35mm and 4.4mm jacks using non-intrusive bypass detection to suggest optimal output gain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully Balanced Precision R2R Volume Control:\u003c\/strong\u003e Discrete resistor ladder volume network providing distortion-free attenuation and channel balance accuracy within 0.1 dB.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully Differential Signal Path \u0026amp; DNF Technology:\u003c\/strong\u003e Fully balanced circuit topology from DAC to TPA6120A2 \/ OPA1612 driver stages incorporating Luxsin Dynamic Negative Feedback (DNF) for transparent sound reproduction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomizable Digital Crossfeed \u0026amp; Soundstage Adjustment:\u003c\/strong\u003e Digital processing algorithms reduce listening fatigue by simulating natural speaker imaging and allowing soundstage depth\/width tuning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.0-Inch Touchscreen \u0026amp; Dynamic VU Meters:\u003c\/strong\u003e Laminated 960x400 colour TFT display offers touchscreen control, real-time graphical VU meter styles, and display blackout modes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtensive Desktop \u0026amp; AV Connectivity:\u003c\/strong\u003e Features HDMI ARC, USB-B, USB-C, Optical, Coaxial, RCA Analog In, 12V Trigger I\/O, RCA\/XLR Preamp Out, and Dual Subwoofer RCA outputs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eDesktop DAC, Headphone Amplifier \u0026amp; Preamplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand \/ Model\u003c\/td\u003e\n\u003ctd\u003eLuxsin X9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDAC \u0026amp; Processing Architecture\u003c\/td\u003e\n\u003ctd\u003eAKM AK4191EQ Modulator + AK4499EX DAC | AKM 7739 DSP | XMOS XU316 USB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClocking \u0026amp; Op-Amps\u003c\/td\u003e\n\u003ctd\u003eAccusilicon Femtosecond Oscillators | Texas Instruments OPA1612\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeadphone Amp Topology\u003c\/td\u003e\n\u003ctd\u003eFully Differential Balanced (OPA1612 + TPA6120A2 with Dynamic Negative Feedback)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolume Control Type\u003c\/td\u003e\n\u003ctd\u003eFully Balanced Resistor Ladder (R2R) Network (0.1 dB Step Precision)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003e4.0-inch Fully Laminated Color TFT Touchscreen (960 x 400 Resolution)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Audio Inputs\u003c\/td\u003e\n\u003ctd\u003e1x USB-B, 1x USB-C, 1x Optical Toslink, 1x Coaxial RCA, 1x HDMI ARC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Audio Inputs\u003c\/td\u003e\n\u003ctd\u003e1x Stereo RCA Pair (Unbalanced, Max Gain +10 dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWireless Input\u003c\/td\u003e\n\u003ctd\u003eBluetooth 5.0 (Qualcomm QCC5125 | Supports SBC \/ AAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Resolution Support\u003c\/td\u003e\n\u003ctd\u003eUSB-B \/ USB-C: PCM up to 768 kHz\/32-bit, Native DSD512\u003cbr\u003eOptical \/ Coaxial \/ HDMI ARC: PCM up to 192 kHz\/24-bit, DoP64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeadphone Outputs\u003c\/td\u003e\n\u003ctd\u003e1x 4.4mm Balanced, 1x 4-Pin XLR Balanced, 1x 6.35mm Single-Ended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLine \u0026amp; Preamp Outputs\u003c\/td\u003e\n\u003ctd\u003e1x Stereo XLR Balanced, 1x Stereo RCA Unbalanced, 2x RCA Subwoofer Outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeadphone Output Voltage \u0026amp; Performance\u003c\/td\u003e\n\u003ctd\u003e4–15 Vrms @ 0dBFS | Dynamic Range: \u0026gt;128 dB | SNR: \u0026gt;128 dB | THD+N: \u0026lt;0.00016% (-116 dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXLR Balanced Output Performance\u003c\/td\u003e\n\u003ctd\u003eOutput Level: 4.2 Vrms @ 0dBFS | Dynamic Range: \u0026gt;128 dB | SNR: \u0026gt;128 dB | THD+N: \u0026lt;0.000096% (-120.3 dB) | Crosstalk: \u0026gt;-117 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRCA Unbalanced Output Performance\u003c\/td\u003e\n\u003ctd\u003eOutput Level: 2.1 Vrms @ 0dBFS | Dynamic Range: \u0026gt;125 dB | SNR: \u0026gt;125 dB | THD+N: \u0026lt;0.00010% (-119 dB) | Crosstalk: \u0026gt;-114 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e20 Hz – 20,000 Hz (±0.25 dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Automation\u003c\/td\u003e\n\u003ctd\u003e3.5mm 12V Trigger In x1, 12V Trigger Out x1, USB-A Port (Firmware Updates Only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Methods\u003c\/td\u003e\n\u003ctd\u003eFront Touchscreen, 12-Button IR Remote, Luxsin Control App (Android \/ iOS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChassis Construction \u0026amp; Power Supply\u003c\/td\u003e\n\u003ctd\u003eCNC-Machined Aluminum (15° Bevel Incline) | Ultra-Low Noise Linear Power Supply (40nV Ripple, 25W Rated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (W x D x H)\u003c\/td\u003e\n\u003ctd\u003e300 x 206 x 65 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e3.72 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Luxsin","offers":[{"title":"Default Title","offer_id":53800750448906,"sku":"USED-LUXS-X9-P","price":840.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/3283\/6618\/files\/luxsin-x9-headphone-amplifier-dac-pre-amplifier-ex-demo-51801-p.jpg?v=1790179040","url":"https:\/\/audioemotion.co.uk\/products\/luxsin-x9-headphone-amplifier-dac-pre-amplifier-ex-demo","provider":"Audio Emotion Limited","version":"1.0","type":"link"}