Alpine HDP-D90

Alpine HDP-D90 Status Series 12-Channel DSP Amplifier The Alpine HDP-D90 is a high-performance 12-channel digital signal processor amplifier designed for audiophiles seeking studio-quality sound in their vehicles. As part of the Alpine Status series, it combines advanced DSP capabilities with powerful amplification to deliver an immersive listening experience. With Hi-Res Audio playback, extensive tuning options, and flexible input/output configurations, the HDP-D90 is engineered for precision and versatility. Key Features Feature Details Audio Processing Hi-Res Audio Playback (192kHz/24Bit); Internal Sampling Rate: 192kHz/64Bit; Ultra-wide bandwidth: 10Hz–110kHz Amplifier Output Channels 1–8: 50W RMS @ 4Ω; Channels 9–12: 80W RMS @ 4Ω; Channels 9–12 (bridged): 160W RMS x 2 @ 4Ω Inputs 12-channel high-level (up to 26V RMS); 2-channel RCA; Optical (SPDIF); Coaxial (Digital); Bluetooth audio streaming with included external module Outputs 10-channel RCA preamp outputs; 12-channel high-level amplified outputs Equalization 31-band parametric or graphic EQ per channel; Q: 0.404 ~ 28.85; Gain: -12.0dB ~ +12.0 dB Crossovers High-pass, low-pass, and band-pass filters per channel; Crossover points: 20Hz – 20kHz; Slopes: 12dB to 48dB/octave; Filter types: Butterworth, Linkwitz-Riley, Bessel Time Correction Up to 20ms delay per channel; Delay units: milliseconds, centimeters, or inches; Phase adjustment: 0° or 180° per channel Control Interface Wireless tuning via smartphone (iOS/Android) and PC; Optional wired LCD remote controller for volume, preset storage/recall, subwoofer level, and source selection Design Copper-plated chassis for enhanced signal-to-noise ratio (>110dB) and minimized distortion (THD: <0.001%) What’s in the Box Alpine HDP-D90 DSP Amplifier 6" 26-Pin Input Harness Bluetooth Module with Attached 6" Cable (RJ-45) 5' USB Cable (Type-A to Type-B) 2 Mounting Brackets Four 3/4" Screws Four 6mm Machine Screws 4 Spare Speaker Output Set-Screws 1/8" Brass Plug Quick Reference Guide Guide Addendum Warranty Information Registration Information Technical Specifications Spec Value RMS Power Output 50W x 8 @ 4Ω; 80W x 4 @ 4Ω; 160W x 2 (bridged) @ 4Ω Frequency Response 10Hz – 110kHz Signal-to-Noise Ratio >110dB Total Harmonic Distortion <0.001% Input Sensitivity High-level: 0.5–10V; RCA: 0.2–4V Minimum Impedance 4Ω (unbridged); 4Ω (bridged) Fuse Rating 30A x 2 (external fuse required) Dimensions (W×H×D) 11" × 2-5/16" × 10-1/2" Weight Approximately 5 lbs Warranty 1 Year