{"product_id":"topping-dx9-discrete-dac-headphone-amplifier","title":"TOPPING DX9 Discrete PSRM DAC \u0026 Headphone Amplifier","description":"\u003cp\u003e\u003cstrong\u003eTOPPING DX9 Discrete DAC \u0026amp; Headphone Amplifier\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe DX9 Discrete is a fully balanced DAC and headphone amplifier built for those who construct their listening chains around precision. It is a ground-up rethinking of TOPPING’s flagship architecture: a self-developed 16-element PSRM 1-bit DAC eliminates conventional chip limitations, while a six-channel discrete NFCA headphone amplifier delivers up to 7,080mW x 2 into 32Ω with near-zero distortion. A ten-band high-precision PEQ, fully balanced hybrid relay volume control, headphone crossfeed, and a rich array of digital inputs make it a transparent DAC, powerful headphone amplifier, and pristine preamp in one chassis.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e16-Element PSRM: 1-bit Done Right\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTOPPING’s proprietary PSRM DAC architecture uses 16 discrete elements per channel to perform 1-bit decoding with nanosecond-level switching. By eliminating off-the-shelf DAC chips, the DX9 Discrete controls every step of the digital-to-analog process, achieving extraordinary linearity and clarity: 131dB SNR, \u0026lt;0.00006% THD+N, and perfectly stable channel balance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGoodbye to Jitter\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA CPLD precision clock system and dual-stage jitter suppression circuit keep the digital signal clean. The AK4118 receiver handles coaxial, optical, and AES inputs with less than 50ps RMS jitter, supporting PCM up to 768kHz and DSD512. Music sounds defined and stable, with transients intact and decay left untouched.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBalanced Power from End to End\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe six-channel discrete NFCA amplifier is built for demanding headphones. Each channel operates independently, producing up to 7,080mW x 2 at 32Ω with noise below 0.5µVrms (balanced) and 1.1µVrms (single-ended). The sound stays quiet, composed, and distortion-free no matter how far you turn the knob.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision Volume You Can Trust\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe fully balanced hybrid relay volume control blends relay switching with a resistor network for exact level adjustment. It eliminates channel imbalance at low volume and keeps stereo imaging razor-sharp.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCustom-Tuned I\/V Conversion\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTOPPING’s proprietary I\/V stage converts current to voltage using low-distortion op-amps and discrete components. It is designed to unlock the PSRM’s full potential: dynamic, textured sound with a sense of air and physicality.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTune to Your Taste with 10-Band PEQ\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe built-in ten-band high-precision PEQ lets you tailor your frequency response exactly how you like it. Adjust gain, Q-factor, and frequency for each band, or import target curves through TOPPING’s software. Save multiple profiles for headphones, speakers, or genres.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrossfeed Done Right\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe headphone crossfeed system uses convolution modeling of HRTF and room acoustics to create natural spatial cues. It reduces the “inside-your-head” effect common to headphones, making the stage sound wider and more realistic, with a simplified BS2B mode for a gentler presentation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnections for Every Occasion\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWith eight digital inputs – USB, Bluetooth, two optical, two coaxial, AES, and IIS – the DX9 Discrete fits into any listening chain. IIS supports up to 768kHz PCM and DSD512. USB uses the XMOS XU-316 processor with Thesycon driver for bit-perfect playback on Windows and plug-and-play compatibility with other systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOutput Options Your Way\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eChoose between headphone, line, or preamp output – or run everything at once with All Output Mode. Outputs include XLR, RCA, 6.35mm, 4.4mm, and XLR-4, all using NEUTRIK connectors for reliable, professional-grade performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless That Holds Its Own\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe integrated Qualcomm QCC5125 Bluetooth 5.1 module supports LDAC, aptX Adaptive, aptX HD, aptX, AAC, and SBC. Stream lossless audio from your phone or laptop with high-resolution clarity and low latency.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBuilt to Last\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA CNC-machined aluminum chassis, glass top panel, and soft ambient lighting give the DX9 Discrete a modern presence on your desk. The multifunction knob can be customized to your liking, the 12V trigger syncs power with other gear, and a solid aluminum remote adds convenience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUser-Friendly Aurora UI\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDual 2.0-inch color displays powered by the Aurora UI let you switch between FFT spectrum, VU meters, and playback info. It is intuitive, fast, and genuinely helpful – no manual needed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDAC Architecture:\u003c\/strong\u003e 16-element PSRM 1-bit discrete (self-developed), no off-the-shelf DAC chips\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTHD+N @1kHz (A-wt):\u003c\/strong\u003e \u0026lt;0.00006% (DAC section)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSNR:\u003c\/strong\u003e 131dB (DAC section)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDynamic Range:\u003c\/strong\u003e 131dB (DAC \u0026amp; preamp section)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel Crosstalk:\u003c\/strong\u003e -136dB @1kHz (DAC); -133dB @1kHz (headphone amp)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e 20Hz-40kHz (±2dB)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDAC Output Level:\u003c\/strong\u003e 5Vrms (XLR) \/ 2.5Vrms (RCA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDAC Output Impedance:\u003c\/strong\u003e 100Ω (XLR) \/ 50Ω (RCA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone Output Power:\u003c\/strong\u003e 7,080mW x 2 @32Ω (balanced)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone Noise:\u003c\/strong\u003e \u0026lt;0.5µVrms (balanced) \/ \u0026lt;1.1µVrms (single-ended)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone Output Impedance:\u003c\/strong\u003e \u0026lt;0.1Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone Gain:\u003c\/strong\u003e 12.5dB (low) \/ 24.5dB (high)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreamp Output Level:\u003c\/strong\u003e 15Vpp (low) \/ 48Vpp (high)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInputs:\u003c\/strong\u003e USB, Bluetooth, 2x Optical, 2x Coaxial, AES, IIS (8 digital inputs)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCM Support:\u003c\/strong\u003e Up to 768kHz \/ 32bit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDSD Support:\u003c\/strong\u003e Up to DSD512\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB Processor:\u003c\/strong\u003e XMOS XU-316 with Thesycon driver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth:\u003c\/strong\u003e QCC5125; Bluetooth 5.1; LDAC, aptX Adaptive, aptX HD, aptX, AAC, SBC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePEQ:\u003c\/strong\u003e Ten-band high-precision with software control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolume Control:\u003c\/strong\u003e Fully balanced hybrid relay with resistor network\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e Line\/Pre: XLR + RCA; Headphone: 6.35mm, 4.4mm, XLR-4; 12V trigger in\/out\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e Dual 2.0-inch color displays (Aurora UI) with FFT\/VU\/playback-info modes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis:\u003c\/strong\u003e CNC-machined aluminum with glass top panel and ambient lighting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e AC 100-240V, 50\/60Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 34.0 x 22.5 x 6.0 cm (13.4 x 8.9 x 2.4 in)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.0 kg (6.6 lbs)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDX9 Discrete unit\u003c\/li\u003e\n\u003cli\u003eRemote control\u003c\/li\u003e\n\u003cli\u003eAC power cable\u003c\/li\u003e\n\u003cli\u003eUSB cable\u003c\/li\u003e\n\u003cli\u003eBluetooth antenna\u003c\/li\u003e\n\u003cli\u003e6.35mm to 3.5mm adapter\u003c\/li\u003e\n\u003cli\u003eProduct information card\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-dx9-discrete-fully-balanced-dac-amp-hero.jpg\" alt=\"topping dx9 discrete fully balanced dac amp hero\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-dx9-discrete-16-element-psrm-dac.jpg\" alt=\"topping dx9 discrete 16 element psrm dac\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-dx9-discrete-vs-dx9-comparison.jpg\" alt=\"topping dx9 discrete vs dx9 comparison\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-dx9-discrete-1-bit-dac-architecture.jpg\" alt=\"topping dx9 discrete 1 bit dac architecture\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-dx9-discrete-cpld-jitter-suppression.jpg\" alt=\"topping dx9 discrete cpld jitter suppression\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-dx9-discrete-six-channel-nfca-amplifier.jpg\" alt=\"topping dx9 discrete six channel nfca amplifier\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-dx9-discrete-hybrid-relay-volume-control.jpg\" alt=\"topping dx9 discrete hybrid relay volume control\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-dx9-discrete-iv-conversion-circuit.jpg\" alt=\"topping dx9 discrete iv conversion circuit\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-dx9-discrete-10-band-peq.jpg\" alt=\"topping dx9 discrete 10 band peq\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-dx9-discrete-headphone-crossfeed.jpg\" alt=\"topping dx9 discrete headphone crossfeed\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-dx9-discrete-input-options.jpg\" alt=\"topping dx9 discrete input options\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-dx9-discrete-output-options.jpg\" alt=\"topping dx9 discrete output options\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-dx9-discrete-bluetooth-51-ldac.jpg\" alt=\"topping dx9 discrete bluetooth 51 ldac\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-dx9-discrete-xmos-usb.jpg\" alt=\"topping dx9 discrete xmos 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alt=\"topping dx9 discrete snr dnr measurement\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-dx9-discrete-thd-measurement.jpg\" alt=\"topping dx9 discrete thd measurement\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-dx9-discrete-frequency-response-measurement.jpg\" alt=\"topping dx9 discrete frequency response measurement\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-dx9-discrete-fft-spectrum-measurement.jpg\" alt=\"topping dx9 discrete fft spectrum measurement\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-dx9-discrete-technical-specifications.jpg\" alt=\"topping dx9 discrete technical specifications\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-dx9-discrete-dac-parameters-chart.jpg\" alt=\"topping dx9 discrete dac parameters chart\"\u003e\u003c\/p\u003e","brand":"TOPPING","offers":[{"title":"Black","offer_id":48846590542016,"sku":"10010090","price":10388.61,"currency_code":"HKD","in_stock":true},{"title":"Silver","offer_id":48846622294208,"sku":"10014403","price":10388.61,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-dx9-discrete-dac-headphone-amplifier-interface-detail.jpg?v=1787139871","url":"https:\/\/hifichic.com\/products\/topping-dx9-discrete-dac-headphone-amplifier","provider":"HIFICHIC","version":"1.0","type":"link"}