Alpine Status HDP-D90 - 12-Channel DSP Amplifier

The Alpine HDP-D90 DSP Amplifier has a 192kHz/32Bit internal sampling rate and an ultra-wide audio bandwidth of 10Hz-110kHz to reproduce sound at its intended high-resolution spec. Intentional designs, like a copper-plated chassis, bring the signal-to-noise ratio up to >110dB and minimize noise and distortion during playback. Drawing inspiration from the internal Master Clock Management System in the AlpineF#1Status DSP, the HDP-D90 contains a Crystal Oscillator Clock Generator at the core of the unit that tracks and aligns digital information to eliminate jitter (timing errors) and accurately reproduce sound.

The DSP has multiple input options for flexible system building. For vehicles that are unable to replace the factory Head Unit, the DSP has 12-channels of high-level inputs that allow the factory Head Unit to be retained. The DSP amp also has an optical input to add the Alpine Status HDS-990 Media Player or analog inputs for another aftermarket Head Unit. The HDP-D90 (when used in stand-alone mode) can also receive music sent directly from a smartphone with Bluetooth wireless streaming.

While the HDP-D90 has 12-channels of amplification (8x 50W x 4x 80W) and can be used to power an entire system, 10-channels of RCA output can be used to add Alpine Status amplifiers for more power or system building.

Product Features

Hi-Res Audio Made Accessible

The Alpine Status system features many technologies, components and materials of the AlpineF#1Status system to achieve ultra high-precision music reproduction - at an affordable price tag. It is designed to play music tracks at 192kHz / 24bit format, which are widely accessible in many online stores and streaming platforms. High-Res Audio playback of 192kHz / 24bit allows Alpine Status to create a heightened listening experience in the vehicle that emulates the feeling of an intimate recording studio session.

Hi-Res Audio DSP Amplifier

The HDP-D90 12-channel DSP amplifier is Hi-Res Audio certified and sounds simply fantastic. It is probably also the most flexible product we ever developed. It can be used in connection with the HDS-990 Alpine Status Media Player or in stand-alone operation with any original or aftermarket radio. Due its many input and output options, this DSP amp has countless passive and active configuration possibilities.

12 Channel High-Power Inputs

The most interesting feature of the HDP-90 are the 12-channel speaker-level inputs with matrix input summing. This allows the HDP-D90 to be connected to most existing original sound systems (even large multi-channel OEM systems), replacing all components after the Head Unit in the audio chain. This allows you to build your desired sound system while keeping the original radio / navigation system of your vehicle. It also features 2-channel RCA inputs, Optical TOSLINK and Coaxial Inputs, as well as Bluetooth Audio (with the supplied Bluetooth dongle).

Active & Passive Outputs

You can use the DSP amp in passive configuration, connecting external amplifiers to the 10-channel PreOuts, or directly connect it your vehicle’s speakers and subwoofers using the built-in 12-channel amplifier (featuring 8x 50 Watts + 4x 80 Watts @ 4 Ohm, 14,4V). You can also bridge the 80 Watt outputs to 2x 160 Watts.

Feature Summary

• Hi-Res Audio DSP Amplifier (192kHz / 32bit max sampling rate without down-sampling)
• Built-in 12-channel amplifier (8x 50 Watts + 4x 80 Watts @ 4Ω, 14,4V)
• MUSES 8820 operational amplifier
• Highly flexible system configuration
• Matrix input summing
• High-Class XO (1/1.000) Crystal Oscillator Clock Generator
• 31-Band / Channel Parametric / Graphic Equalizer
• Digital Time Correction
• External Bluetooth dongle included
• High-performance PC software
• Optional controller available (RUX-C810)

Technical Specifications

Performance

• Power Output (rated 4Ω, 14,4V, 10% THD): 8x 50 Watt + 4x 80 Watt
• THD+N RCA: 1W into 4Ω ≤0.01%
• S/N RCA: A-wt ≥100dB
• Input Voltage: High level 26 Vpp / RCA 8 Vpp
• Output Voltage: High level CH1～8: 40 Vpp, CH9～12: 50 Vpp / RCA 10 Vpp
• Frequency Response (1W into 4Ω): 20Hz～40kHz

General

• Input Impedance: High level 14Ω / RCA 10kΩ
• System Sampling Rate: 192kHz/32bit
• Operating Voltage: 9～16V
• Standby Power Consumption: ≤0.1W
• Remote Start Input High-Level (H1-/H1+), ACC optional
• Remote Start Output: 12V (0.2A)
• Output Channel Signal Gain Range: -60dB～+6dB
• Output Signal Equalizer
  Type: Parametric / Graphic Equalizer
  Frequency: 20Hz～40kHz (1Hz steps)
  Q value: 0.404～28.852
  Gain: -12.0dB～+12.0dB (0.1dB steps)
• Output Signal Divider
  Pass independent filters
  Filter type: Link-Ril, Bessel, Butter-W
  Filter crossover point: 20Hz～40kHz (1Hz steps)
  Filter slope: -6dB/Oct～-48dB/Oct
• Output Phase: normal phase or reverse phase (0°～360°)
• Output Delay: 0.000～20.000ms、0～692cm、0～273inch
• Preset Sound Effects: 6 sound data presets
• Weight: 4.5kg
• Dimensions: Width 278mm / Depth 256mm / Height 58mm

Further Information

Alpine HDP-D90 - User Manual (PDF)