{"product_id":"topping-d900-dac","title":"TOPPING D900 DAC (Digital-to-Analog Converter)","description":"\u003ch1\u003e\u003cstrong\u003eTOPPING raises the Bar\u003c\/strong\u003e\u003c\/h1\u003e\n \u003cp\u003eDrawing on over 15 years of audio engineering experience, TOPPING created the D900 to deliver reference-grade sound with beautifully minimalist aesthetics. It debuts a proprietary 32-element PSRM module and a new I\/V conversion circuit—both engineered for ultra-low noise, high-fidelity playback. It also features an independent preamp circuit and versatile input options, making it a seamless fit for computers, CD players, gaming consoles, and digital transports.\u003cbr\u003e\u003c\/p\u003e\n \u003ch2\u003e\u003cstrong\u003eProprietary PSRM Module\u003c\/strong\u003e\u003c\/h2\u003e\n \u003cp\u003eThe D900 uses a discrete 1-bit PSRM decoding architecture, minimizing power supply interference while preserving signal integrity. With nanosecond-level digital switching and a purely resistive reference power supply, it achieves harmonic distortion below –140dB and an SNR of 131dB.\u003c\/p\u003e\n \u003ch2\u003e\u003cstrong\u003eProprietary I\/V Conversion\u003c\/strong\u003e\u003c\/h2\u003e\n \u003cp\u003eTOPPING’s in-house I\/V circuit uses low-distortion op-amps and ultra-low noise discrete components to maintain pristine voltage output from the PSRM stage.\u003c\/p\u003e\n \u003ch2\u003e\u003cstrong\u003eWireless Support with LDAC \u003c\/strong\u003e\u003c\/h2\u003e\n \u003cp\u003eThanks to the QCC5125 chip, the D900 supports LDAC, aptX HD, aptX Adaptive, AAC, and SBC—delivering up to 96kHz\/24-bit wireless playback. Perfect for streaming from TVs, tablets, and mobile devices.\u003c\/p\u003e\n \u003ch2\u003e\u003cstrong\u003eAurora UI and Remote Control\u003c\/strong\u003e\u003c\/h2\u003e\n \u003cp\u003eA 2.0\" full-color screen with a pressable knob and three control buttons offers intuitive navigation. Choose your background color and switch between FFT, VU meter, or playback info displays. The included remote, machined from a solid aluminum block, offers convenient full-feature control.\u003c\/p\u003e\n \u003ch2\u003e\u003cstrong\u003e10-Band High Precision Parametric EQ Adjustment\u003c\/strong\u003e\u003c\/h2\u003e\n \u003cp\u003eUse the desktop software to fine-tune 10 frequency bands—adjust frequency, gain, and Q-factor. Save profiles for different headphones or speakers and import\/export your curves.\u003c\/p\u003e\n \u003ch2\u003e\u003cstrong\u003eIndependent Preamp Mode\u003c\/strong\u003e\u003c\/h2\u003e\n \u003cp\u003eDrive active speakers or power amps directly via the dedicated preamp circuit. Volume can be adjusted in 0.5dB steps via front panel or remote. Each input\/output remembers its volume setting.\u003c\/p\u003e\n \u003ch2\u003e\u003cstrong\u003eCombine with A900 (Coming Soon)\u003c\/strong\u003e\u003c\/h2\u003e\n \u003cp\u003eThe D900 is built to complement the upcoming A900 headphone amp—offering matched design, premium specs, and a complementary aesthetic.\u003cbr\u003e\u003c\/p\u003e\n \u003ch3\u003e\u003cstrong\u003eProduct Highlights\u003c\/strong\u003e\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\u003cspan\u003eFully discrete 1-bit PSRM DAC architecture\u003c\/span\u003e\u003c\/li\u003e\n \u003cli\u003eSelf-developed I\/V circuitry\u003c\/li\u003e\n \u003cli\u003eSNR: 131dB; DNR: 131dB\u003c\/li\u003e\n \u003cli\u003e\u003cspan\u003eUltra-low jitter (-157dB)\u003c\/span\u003e\u003c\/li\u003e\n \u003cli\u003eTHD+N: \u0026lt;0.000055%\u003cmeta charset=\"utf-8\"\u003e\n \u003c\/li\u003e\n \u003cli\u003e10-band PEQ with desktop software\u003c\/li\u003e\n \u003cli\u003eAurora UI with full-color screen\u003c\/li\u003e\n \u003cli\u003eBluetooth 5.1 with LDAC and aptX HD\u003c\/li\u003e\n \u003cli\u003ePreamp mode with volume memory\u003c\/li\u003e\n \u003cli\u003e12V trigger in\/out\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eInputs: USB-C, USB-B, optical, coaxial, Bluetooth, AES, or IIS-LVDS\u003c\/li\u003e\n \u003cli\u003eOutputs: XLR balanced preamp, XLR balanced line out\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n \u003cp\u003eD900 DAC Parameters (Line Out\/USB In @ 96kHz):\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eTHD+N A-wt:\n \u003cul\u003e\n \u003cli\u003eXLR (Line Out): \u0026lt;0.000055% @ 1kHz\u003c\/li\u003e\n \u003cli\u003eXLR (Preamp): \u0026lt;0.000055% @ 1kHz\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/li\u003e\n \u003cli\u003eTHD @No-wt (45kBw):\n \u003cul\u003e\n \u003cli\u003eXLR (Line Out): \u0026lt;0.00015% @ 20-20kHz\u003c\/li\u003e\n \u003cli\u003eXLR (Preamp): \u0026lt;0.00015% @ 20-20kHz\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/li\u003e\n \u003cli\u003eSNR (A-wt):\n \u003cul\u003e\n \u003cli\u003eXLR (Line Out): 131dB @ 1kHz\u003c\/li\u003e\n \u003cli\u003eXLR (Preamp): 131dB @ 1kHz\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/li\u003e\n \u003cli\u003eDynamic Range (A-wt):\n \u003cul\u003e\n \u003cli\u003eXLR (Line Out): 131dB @ 1kHz\u003c\/li\u003e\n \u003cli\u003eXLR (Preamp): 131dB @ 1kHz\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/li\u003e\n \u003cli\u003eFrequency Response:\n \u003cul\u003e\n \u003cli\u003eXLR (Line Out): 20Hz-20kHz (±0.3dB), 20Hz-40kHz (±1.0dB)\u003c\/li\u003e\n \u003cli\u003eXLR (Preamp): 20Hz-20kHz (±0.3dB), 20Hz-40kHz (±1.0dB)\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/li\u003e\n \u003cli\u003eOutput Level:\n \u003cul\u003e\n \u003cli\u003eXLR (Line Out): 4.2Vrms @ 0dBFS (4V Mode), 5.2Vrms @ 0dBFS (5V Mode)\u003c\/li\u003e\n \u003cli\u003eXLR (Preamp): 10.5Vrms @ 0dBFS (4V Mode), 13.0Vrms @ 0dBFS (5V Mode)\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/li\u003e\n \u003cli\u003eNoise (A-wt):\n \u003cul\u003e\n \u003cli\u003eXLR (Line Out): \u0026lt;1.5uVrms\u003c\/li\u003e\n \u003cli\u003eXLR (Preamp): \u0026lt;1.6uVrms\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/li\u003e\n \u003cli\u003eChannel Crosstalk:\n \u003cul\u003e\n \u003cli\u003eXLR (Line Out): -147dB @ 1kHz\u003c\/li\u003e\n \u003cli\u003eXLR (Preamp): -147dB @ 1kHz\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/li\u003e\n \u003cli\u003eChannel Balance:\n \u003cul\u003e\n \u003cli\u003eXLR (Line Out): 0.3dB\u003c\/li\u003e\n \u003cli\u003eXLR (Preamp): 0.3 dB\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/li\u003e\n \u003cli\u003eOutput Impedance:\n \u003cul\u003e\n \u003cli\u003eXLR (Line Out): 100Ω\u003c\/li\u003e\n \u003cli\u003eXLR (Preamp): 100Ω\u003cbr\u003e\n \u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/li\u003e\n \u003c\/ul\u003e\n \u003cp\u003eNote: The above data is the result of tests in TOPPING's laboratory with an output amplitude of 5V.\u003c\/p\u003e\n \u003ch3\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eD900 DAC\u003c\/li\u003e\n \u003cli\u003eRemote control\u003c\/li\u003e\n \u003cli\u003eUSB cable\u003c\/li\u003e\n \u003cli\u003eAC cable\u003c\/li\u003e\n \u003cli\u003eBluetooth antenna\u003c\/li\u003e\n \u003cli\u003eProduct information card\u003c\/li\u003e\n \u003c\/ul\u003e","brand":"TOPPING","offers":[{"title":"D900 DAC","offer_id":46866221138095,"sku":"APS-1045-1","price":1799.0,"currency_code":"USD","in_stock":true},{"title":"D900 DAC + A900 Amp + FREE Apos Flow Balanced XLR Cable Pair","offer_id":46866221170863,"sku":"APS-1094-1","price":2998.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6415\/2239\/files\/apos-audio-topping-dac-digital-to-analog-converter-topping-d900-dac-digital-to-analog-converter-1173239915_077823f8-a1f6-4cf3-a1a3-d22dc3ced65e.jpg?v=1777716368","url":"https:\/\/freshized.com\/products\/topping-d900-dac","provider":"Freshized","version":"1.0","type":"link"}