Alpine HDP-D90 Status Series 12-Channel 50W RMS x 8 + 80W RMS x 4 at 4 Ohm, Class-D Car Amplifier with 14-Channel Digital Sound Processor Output
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What's Inside?
- • 14-Channel Audio Processor/12-Channel 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
- • (4) 3/4" screws
- • (4) 6mm machine screws
- • (4) Spare speaker output set-screws
- • 1/8" Brass plug
- • Quick Reference Guide
- • Guide addendum
- • Warranty information
- • Registration information
- • Owner's Manual
Why Choose Alpine HDP-D90 12-Channel Amplifier?
Pure Power, Precision, and Premium Sound
Experience unmatched audio control with this 12-channel Class D amplifier, delivering 50W RMS x 8 plus 80W RMS x 4 at 4 ohms — or up to 160W RMS bridged — all with advanced digital processing, an impressive 100 dB signal-to-noise ratio, and ultra-low 0.01% distortion for crystal-clear, powerful sound.
Studio-Grade Control & Clarity
Enjoy a wide 20–40,000 Hz frequency response, cutting-edge 192 kHz/32-bit digital signal processing, and fine-tune every detail with a 31-band parametric and graphic EQ — all easily customized through Alpine’s HDP DSP app on your laptop, PC, or mobile device with Bluetooth connectivity.
Precision Tuning at Your Fingertips
Shape your audio with high- and low-pass filters featuring selectable filter types, adjustable crossover points, and flexible slopes, plus fine-tune phase and delay settings and add your vibe with six pre-set sound effects.
Unlock Ultimate Playback Control with the HDS-990 Digital Media Player
When paired with the Hi-Res HDS-990 Digital Media Player, you unlock even more control options for your processor while getting the highest-quality playback possible in your vehicle (sold separately).
See What You’re Getting
Frequently Asked Questions (FAQ)
- • Can this amplifier work with my factory head unit?
Yes, it is designed to integrate with many factory and aftermarket audio systems using the appropriate input connections. This allows you to upgrade sound quality without replacing your existing radio.
- • Why isn't the amplifier powering on after installation?
This is usually caused by a missing remote turn-on signal, poor ground connection, or incorrect power wiring. Verifying all wiring connections and checking the fuse typically resolves the issue.
- • Do I need DSP tuning to get the best sound quality?
Yes, proper DSP tuning is essential for achieving balanced frequency response, accurate imaging, and optimal speaker performance. Adjusting equalization, crossover points, and time alignment can dramatically improve the listening experience.
- • Why do some speakers have no sound after everything is connected?
Incorrect channel assignments, muted outputs, or wiring errors are common causes of missing audio. Reviewing the DSP configuration and checking every speaker connection usually restores full system operation.
- • Can this amplifier support an active speaker system?
Yes, the multiple amplified channels and advanced DSP make it well suited for active front-stage systems with dedicated tweeter, midrange, and woofer channels. This setup provides greater tuning flexibility and improved sound quality.
- • Why does the amplifier become warm during extended listening sessions?
It is normal for multi-channel amplifiers to generate heat while powering several speakers at higher output levels. Ensuring proper airflow around the amplifier helps maintain reliable performance over long periods of use.
- • Can I connect one or more subwoofers to this system?
Yes, the processor provides flexible output routing that allows integration of one or multiple compatible subwoofers. Proper crossover and level adjustments help achieve smooth bass integration with the rest of the speakers.
- • Why does the audio sound distorted at higher volume levels?
Distortion is often caused by excessive gain settings, clipping, or improperly configured DSP parameters. Reducing amplifier gain and recalibrating the system usually restores clean, detailed sound.
- • Can I expand my audio system with additional amplifiers later?
Yes, the processor's flexible channel routing makes it suitable for future system expansion with additional compatible amplifiers. This allows you to upgrade your audio system over time without replacing the processor.
- Number of Channels : 12
- Frequency Response : 20-40000 Hz
- Built In Crossovers : Yes
- Channel Separation : Yes
- Amplifier Class : D
- Fuse Rating : 70 A
- Built In DSP : Yes
Features:
- 12-channel car amplifier with advanced digital processing
- Power Output:
- 50W RMS x 8 channels + 80W RMS x 4 channels at 4 ohms
- 50W RMS x 8 channels + 160W RMS x 2 channels bridged at 4 ohms
- Efficient Class D amplifier technology
- High-quality audio with 100 dB signal-to-noise ratio and 0.01% distortion
- Wide frequency response: 20 – 40,000 Hz
- Digital signal processing with 192 KHz, 32-bit sampling rate
- Customizable settings and tuning via Alpine's HDP DSP app on laptop, PC, or mobile devices with Bluetooth compatibility
- 31-band parametric and graphic equalizer
- High- and low-pass filters with selectable filter type, crossover points, and slope adjustments
- Phase and delay adjustment controls
- Six pre-set sound effects
Specifications:
- 10-channel processed RCA preamp outputs
- Matrix mixing for versatile input assignments:
- 12-channel high-level harness (supports up to 26 Vrms)
- 2-channel RCA
- Coaxial and optical digital inputs
- Bluetooth streaming (receiver/dongle included)
- Wiring and hardware not included; 4-gauge power and ground wires recommended
- Fuse rating: 35A x 2
- Dimensions: 11" W x 2-5/16" H x 10-1/2" D
- Warranty: 1 year
- UPC: 793276084927
- Weight: 8
- Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for repair within 1 year from the original date of purchase with proper return authorization.
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