{"product_id":"topping-d900-u","title":"Topping D900 Ultra-Flagship DAC | 32-Element PSRM | Bluetooth 5.1 LDAC | Hi-Res Audio","description":"\u003cstyle\u003ebody{font-family:Arial,sans-serif;background:#f9fafc;color:#222;margin:20px}.container{max-width:940px;margin:auto;background:#fff;border-radius:12px;box-shadow:0 6px 18px rgba(0,0,0,.08);padding:28px}h2{font-size:22px;margin:18px 0 10px;color:#0b4a82}h3{font-size:18px;margin:16px 0 8px;color:#0b4a82}p{line-height:1.75;margin:8px 0}ul{margin:10px 0 16px 20px}li{margin:6px 0}.badges span{display:inline-block;background:#eef6ff;border:1px solid #d4e6ff;color:#0b4a82;padding:6px 11px;border-radius:999px;margin:5px 6px 0 0;font-size:13px}.note{font-size:13px;color:#666;margin-top:10px}.product-images{margin:20px 0}.product-images img{max-width:100%;height:auto;display:block;margin:10px 0}\u003c\/style\u003e\n\u003cdiv class=\"container\"\u003e\n\u003ch2\u003eTopping D900 Ultra-Flagship DAC\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eThe pinnacle of Topping engineering—a no-compromise reference DAC built for audiophiles who demand the absolute best in digital-to-analog conversion.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eTopping D900\u003c\/strong\u003e is Topping’s ultra-flagship desktop DAC, engineered from the ground up for reference-grade performance. At its core is a proprietary \u003cstrong\u003e32-element PSRM (Parallel Symmetrical Reference Module)\u003c\/strong\u003e with a brand-new I\/V conversion circuit using ultra-low noise discrete components—delivering pristine voltage output, ample dynamics, and an immersive soundstage. With an exhaustive array of digital inputs including USB-C, USB-B, optical, coaxial, AES, IIS-LVDS, and \u003cstrong\u003eBluetooth 5.1 with LDAC\u003c\/strong\u003e, the D900 connects to virtually any source. A 2-inch full-color display and intuitive touch controls complete a flagship experience worthy of the most demanding listening rooms.\u003c\/p\u003e\n\u003cdiv class=\"badges\"\u003e\n\u003cspan\u003e32-Element PSRM Module\u003c\/span\u003e\n\u003cspan\u003eProprietary I\/V Circuit\u003c\/span\u003e\n\u003cspan\u003eBluetooth 5.1 LDAC\u003c\/span\u003e\n\u003cspan\u003eaptX Adaptive\u003c\/span\u003e\n\u003cspan\u003eUSB-C Input\u003c\/span\u003e\n\u003cspan\u003eAES \/ IIS-LVDS\u003c\/span\u003e\n\u003cspan\u003eCPLD Ultra-Low Jitter\u003c\/span\u003e\n\u003cspan\u003e2\" Color Display\u003c\/span\u003e\n\u003cspan\u003eRemote Control\u003c\/span\u003e\n\u003cspan\u003eHi-Res Audio\u003c\/span\u003e\n\u003c\/div\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand-New I\/V Conversion Circuit:\u003c\/strong\u003e A proprietary I\/V circuit composed of low-distortion integrated op-amps and ultra-low noise discrete components—carefully selected after repeated testing—ensures the PSRM voltage output remains pristine, delivering ample dynamics and an immersive, lifelike sound experience.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e32-Element PSRM Architecture:\u003c\/strong\u003e Topping’s Parallel Symmetrical Reference Module uses 32 discrete elements working in concert to achieve vanishingly low noise and distortion—a hallmark of true reference-grade DAC design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRich Digital Input Array:\u003c\/strong\u003e USB-C, USB-B, optical (TOSLINK), coaxial (SPDIF), Bluetooth 5.1, AES\/EBU, and IIS-LVDS inputs ensure compatibility with virtually every digital source—from computers and CD transports to gaming consoles and network streamers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCPLD Ultra-Low Jitter:\u003c\/strong\u003e A CPLD (Complex Programmable Logic Device) processes and optimizes the clock signal, achieving incredible jitter rejection for a blacker background and more precise, stable audio reproduction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLDAC Bluetooth 5.1 (QCC5125):\u003c\/strong\u003e Powered by the Qualcomm QCC5125 chip, the D900 supports Bluetooth 5.1 with LDAC, aptX Adaptive, aptX HD, aptX, AAC, and SBC—enabling wireless hi-res audio up to 96kHz\/24-bit, well beyond CD quality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Inch Full-Color Display:\u003c\/strong\u003e A vibrant 2\" display provides clear real-time playback information at a glance—input source, sample rate, bit depth, and volume level always visible.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntuitive Touch Controls \u0026amp; Customizable Knob:\u003c\/strong\u003e Three touch-sensitive buttons work seamlessly with the precision volume knob. 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