6ch-12ch Digital Signal Interface and Processor


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The DSI-3 audio signal processor will allow you to precisely tune the acoustics of a vehicle’s audio system for maximum listening pleasure. With features like 6ch summable input, 12ch output, Bluetooth 5.0 audio streaming, and 31 band parametric EQ this DSP can easily handle the increased interfacing and tuning needs of today’s multi channel audio systems.

The DSI-3’s PC interface has an advanced tuning suite for easy system setup and the mobile user interface is compatible with Apple and Android for on the go tuning and control.

For even more installation flexibility you can add the optional DSI-3RMT for remote control of the master volume, preset selection, and subwoofer level.


  • PC and Smartphone Graphic User Interfaces
  • 31 band Parametric / Graphic Equalizer, Crossovers, and Time Alignment
  • Bluetooth Compatible
  • Remote Controllable (w/ optional DSI-3RMT)
  • 6 Customizable EQ Presets
  • 6ch High-level Inputs
  • 6ch Low-level RCA Inputs
  • Input Summing
  • 12ch Low-level RCA Outputs
  • Aluminum Chassis

DSI-3: 12 Channel – 31 Band Parametric EQ Active Pre-Amp Signal Processor

Operating Voltage: 8.7 - 16.5
Input Channel(s): 6
Output Channel(s): 12
RCA Input Voltage Sensitivity: 0.3-3.2v (CH1 - CH4) / 0.6-6.4v (CH5 - CH6)
High-Level Input Voltage Sensitivity: 2-20v (CH1 - CH4) / 4-40v (CH5 - CH6)
RCA Output Voltage: 0.2V - 5V
RCA Input Impedance: ≥ 20kΩ
High Level Input Impedance: 240Ω
RCA Output Impedance: ≥ 50kΩ
RCA Input S/N: ≥ 105dBA
High-Level Input S/N: ≥ 115dBA
THD: < 0.02%
Parametric / Graphic EQ: 31 bands
Sampling Frequency: 192 kHz
Bit Depth: 32 bit
Processing Speed: 395 MHz
Remote Control: Remote Available, Sold Separately
Remote Out Current: 12V ≤ 500mA
Dimensions (Inches): 7.5 x 4.2 x 1.5
Dimensions (MM): 191 x 107 x 39
Price (USD): 615 each

Active signal processors capture the audio signal before it gets to the amplifier allowing you to modify the waveform to meet your needs. They require external power to operate, but provide a higher degree of adjustability than most amplifier preamps or passive (non powered) devices.

DD Audio
4025 NW 36th Street
Oklahoma City, OK 73112
(405) 239-2800 | Fax: (405) 239-7100