Alpine HDP-D90
Status Series 12-channel 1400 Watt car amplifier with digital signal processing
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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 |
FAQ
Do products purchased from San Diego Car Stereo come with a warranty?
Yes, all products come with a 1-year manufacturer warranty unless otherwise stated. This covers any defects excluding physical damage.
Are these products brand new?
Yes, every product we sell is 100% brand new, unused, and comes in original manufacturer packaging unless clearly marked otherwise.
Do you offer installation services?
Yes, we offer professional installation services at both of our San Diego Car Stereo locations. Our expert technicians have over 50 years of combined experience to install all of your car, marine, or offroad audio needs. Stop by or give us a call to schedule an appointment to get a quote in person.