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🚚 Our delivery methods

• Chronopost Économique pickup point: free delivery with purchases of €49 or more (4 to 10 business days).
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• 24h home delivery: our only home delivery option. Please note that this delivery method is not considered a guaranteed express delivery.

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The Sound Auto Concept Team

Alpine HDP-D90 Amplifier – High-Resolution 12-Channel DSP

The Alpine HDP-D90 is a high-resolution DSP amplifier designed for the most demanding car audio installations. With its 12 integrated channels, MUSES 8820 amplification, and a comprehensive DSP system, it offers exceptional sound precision, total configuration flexibility, and audiophile performance.

General Features

• High-resolution audio DSP amplifier (192 kHz / 32 bit)

• Integrated 12-channel amplifier: 8x50W + 4x80W @ 4Ω, 14.4V

• MUSES 8820 operational amplifier

• Highly versatile configuration system

• Matrix input summation

• High-grade XO crystal oscillator clock generator

• 31-band parametric / graphic equalizer per channel

• Digital time correction

• External Bluetooth connector included

• High-performance PC software included

• Optional controller: RUX-C810

Performance

• Output power (4Ω, 14.4V, 10% THD): 8x50 W + 4x80 W

• THD+N RCA (1W, 4Ω): ≤0.01 %

• RCA signal-to-noise ratio: ≥100 dB

• Input voltage: High level 26 Vpp / RCA 8 Vpp

• Output voltage: CH1~8: 40 Vpp, CH9~12: 50 Vpp / RCA 10 Vpp

• Frequency response (1W into 4Ω): 20 Hz – 40 kHz

General and DSP

• Input impedance: High level 14Ω / RCA 10 kΩ

• System sampling frequency: 192 kHz / 32 bit

• Operating voltage: 9 – 16 V

• Standby consumption: ≤0.1 W

• Remote start input: High level or ACC

• Remote start output: 12 V (0.2 A)

• Output channel gain: -60 dB to +6 dB

• Parametric / graphic equalizer 20 Hz – 40 kHz

• Independent crossover filters: Link-Ril, Bessel, Butter-W

• Output phase: normal or inverse (0° – 360°)

• Output delay: 0 – 20 ms (0 – 692 cm / 0 – 273 inch)

• Preset sound effects: 6 presets

Dimensions and Weight

• Width: 278 mm

• Depth: 256 mm

• Height: 58 mm

• Weight: 4.5 kg

Highlights

• High-resolution DSP for maximum audio precision

• MUSES 8820 amplification for clear and detailed sound

• 12 channels for complex stereo and subwoofer installations

• Parametric / graphic equalizer and time correction

• Bluetooth connector and PC software included for advanced configuration

• Available at the best price at Sound Auto Concept

Recommended Use

The Alpine HDP-D90 is ideal for car audio enthusiasts seeking a high-end installation with full sound control. It is suitable for complex multi-channel systems, subwoofers, and audiophile stereo configurations.