Enjoy 5% off all pre-order products.

The discount is automatically applied to your cart.

The announced delivery times are given as an indication and expressed in working days.

They may be extended in case of supplier holidays, carrier delays, or unfavorable weather conditions.

We make every effort to keep you informed and ensure the delivery of your order as quickly as possible.

If you have any questions, please contact us via the website chat or consult our General Terms and Conditions of Sale, available at the bottom of the page.

The Sound Auto Concept Team

To track your order, we invite you to use the Chat available at the bottom right of the store ➡️⬇️

If you have any questions regarding your order, our team will respond to you as soon as possible 🙂

We offer several delivery options to meet your needs.

Free shipments are made via a relay point.

If you prefer home delivery, a surcharge may apply when ordering.

For shipments outside France, please refer to our "Deliveries and Returns" section for more information.

Do not hesitate to contact us for more details!

Our team is at your disposal by telephone at 09.85.13.66.35 or the Chat box to help you select the products that suit you best 💡😉

We can help you create a cart directly via live chat if you are unsure about your choice. Our team will be happy to offer you their technical expertise 💪🙂

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.