DD audio DSI-3 12 CH DSP

DD Audio DSI-3 12 Channel DSP Signal Processor with 31-Band EQ & Bluetooth

Take full control of your vehicle’s sound system with the DD Audio DSI-3 digital signal processor. Designed for serious multi-channel builds, this DSP gives you the tools to dial in every detail — from precise EQ tuning to crossover management and time alignment — so your system sounds exactly how it should.

With flexible input options, powerful processing, and Bluetooth connectivity, the DSI-3 makes it easy to integrate with factory or aftermarket setups while giving you professional-level tuning capability.

What’s Included

• (1) DD Audio DSI-3 12 Channel Digital Signal Processor

Why We Recommend It

If you’re building a high-end audio system, proper tuning is what separates a loud system from a great sounding one. The DSI-3 allows precise adjustment across all channels so you can achieve balanced staging, clean output, and accurate sound reproduction.

Perfect for complex installs, active setups, and systems requiring advanced tuning control.

Key Features

• 31-band parametric and graphic equalizer

• Built-in crossovers and time alignment

• Bluetooth audio streaming capability

• Compatible with PC and smartphone tuning software

• Optional remote control support (DSI-3RMT sold separately)

• Six customizable tuning presets

• Input summing capability

• Durable aluminum chassis

Inputs & Outputs

• 6-channel high-level speaker inputs

• 6-channel RCA low-level inputs

• 12-channel RCA outputs

Technical Specifications

Operating Voltage: 8.7 – 16.5V
Input Channels: 6
Output Channels: 12

RCA Input Sensitivity:
0.3 – 3.2V (CH1–CH4)
0.6 – 6.4V (CH5–CH6)

High-Level Input Sensitivity:
2 – 20V (CH1–CH4)
4 – 40V (CH5–CH6)

RCA Output Voltage: 0.2V – 5V

Impedance:
RCA Input: >20kΩ
High-Level Input: 240Ω
RCA Output: >50kΩ

Signal to Noise Ratio:
RCA: >105 dBA
High Level: >115 dBA

THD: <0.02%

EQ Bands: 31
Sampling Rate: 192 kHz
Bit Depth: 32-bit
Processor Speed: 395 MHz

Remote Output Current: 12V <500mA

Dimensions:
7.5 x 4.2 x 1.5 inches
191 x 107 x 39 mm

Installation Notes

Professional installation and tuning are recommended to fully utilize this processor’s capabilities. Compatible with factory and aftermarket systems.