{"product_id":"alpine-hdp-d90-hi-res-audio-dsp-amplifier","title":"Alpine HDP-D90 Hi-Res Audio DSP Amplifier | 192kHz 14-Channel Processor","description":"\u003ch2\u003eAlpine HDP-D90 — Hi-Res Audio DSP Amplifier for the Serious Audiophile\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAlpine HDP-D90\u003c\/strong\u003e is not just an amplifier — it is a complete digital signal processing powerhouse built for those who refuse to compromise on in-car audio quality. Drawing directly from the DNA of the legendary \u003cstrong\u003eAlpineF#1Status processor\u003c\/strong\u003e, the HDP-D90 brings studio-grade sound engineering to your vehicle, delivering every frequency with surgical precision and breathtaking realism.\u003c\/p\u003e\n\u003cp\u003eWhether you are building a competition-grade system or simply want the finest listening experience on your daily commute, the HDP-D90 gives you the tools to tune your car's acoustics exactly the way you hear music — not the way the factory intended.\u003c\/p\u003e\n\u003ch3\u003e Hi-Resolution Audio Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e 20Hz – 40kHz (Hi-Res certified)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHi-Res Playback:\u003c\/strong\u003e 192kHz \/ 32-Bit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Sampling Rate:\u003c\/strong\u003e 192kHz \/ 64-Bit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal-to-Noise Ratio:\u003c\/strong\u003e \u0026gt;110dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Harmonic Distortion:\u003c\/strong\u003e \u0026lt;0.001%\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e Advanced DSP Processing\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e14-Channel\u003c\/strong\u003e fully independent signal processing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e31-Band Parametric EQ (P-EQ) \u0026amp; Graphic EQ (G-EQ)\u003c\/strong\u003e per channel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-Way Active Crossovers\u003c\/strong\u003e with slope control: -6dB to -48dB\/oct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12-Channel Digital Time Correction:\u003c\/strong\u003e 0–20ms delay with 7mm step precision for perfect soundstage imaging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatrix Input Summing\u003c\/strong\u003e for flexible signal routing across all channels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e Inputs \u0026amp; Outputs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInputs:\u003c\/strong\u003e 2Ch RCA | 12Ch High-Level | Optical | Coaxial | Bluetooth Audio\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e 10Ch RCA | 12Ch High-Level\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmplifier Output:\u003c\/strong\u003e 50W RMS × 8Ch + 80W RMS × 4Ch\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e Design \u0026amp; Dimensions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (Main Unit):\u003c\/strong\u003e 278mm × 256mm × 58mm\u003c\/li\u003e\n\u003cli\u003eOptional dedicated controller for real-time in-cabin tuning\u003c\/li\u003e\n\u003cli\u003eExternal Bluetooth unit included | Head Unit Commander compatible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy the Alpine HDP-D90 Stands Apart\u003c\/h3\u003e\n\u003cp\u003eMost car audio systems are built around the limitations of factory wiring and generic tuning. The HDP-D90 eliminates those limitations entirely. Its \u003cstrong\u003e192kHz\/64-Bit internal processing\u003c\/strong\u003e ensures zero degradation across the signal chain, while the \u003cstrong\u003e12-channel time correction\u003c\/strong\u003e aligns every speaker in your vehicle to a single, coherent soundstage — something no passive crossover or factory DSP can achieve.\u003c\/p\u003e\n\u003cp\u003ePair it with high-quality component speakers and a premium head unit, and you will hear details in your favourite tracks you never knew existed. This is the amplifier that audiophiles install once and never replace.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Compatible with aftermarket head units and OEM high-level outputs.\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e Ideal for custom installs, audiophile builds, and SQ competition systems.\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eBacked by Alpine's global engineering legacy.\u003c\/strong\u003e\u003c\/p\u003e","brand":"DolphinAccessories ","offers":[{"title":"Default Title","offer_id":48612368711908,"sku":null,"price":181990.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/9275\/4404\/files\/Alpine_HDP-D90_Hi-Res_Audio_DSP_Amplifier.png?v=1774894365","url":"https:\/\/dolphinaccessories.com\/products\/alpine-hdp-d90-hi-res-audio-dsp-amplifier","provider":"DolphinAccessories ","version":"1.0","type":"link"}