DSP-408 4x8 DSP Digital Signal Processor for Home and Car Audio

Quick Overview

Take control of your audio system with the Dayton Audio DSP-408, a feature-rich 4 input/8 output digital signal processor. The DSP-408 features built-in EQ, crossovers, time alignment, and input/output mixing. The most alluring feature of the DSP-408 is the ability to be powered to your home or car audio system.

Product Highlights

  • Real-time signal processing for ultimate control
  • Complete audio customization for application specific installations
  • Easy-to-use Graphical User Interface (GUI)
  • All eight output channels have a fully adjustable 10-band parametric EQ
  • Optional Bluetooth dongle (for streaming and app control) and wired remote available

Product Manuals / Spec Sheets / Downloads

Dayton Audio DSP-408 Windows GUI Software
Dayton Audio DSP Firmware Update
Dayton Audio DSP-408 User Manual

Buying Options

Take Control of Your Sound

Ease of use has always had its place in the consumer electronics industry. Dayton Audio has now brought to market a digital signal processor (DSP) that combines versatility, incredible sound quality, and ergonomic graphical user interfaces.

The most unique feature of the DSP-408 is the ability to use it in a vehicle or home audio system right out of the box. This adaption allows users to use a single model of DSP for all their audio processing needs.

For many individuals, the pursuit of perfect sound quality is a never-ending quest. When utilizing all the features the DSP-408 offers, the ability to manipulate and improve the sound quality of your audio system is simply astonishing. With access to all of the following features, perfecting your audio system is just a matter of time. Connect to your DSP-408 and get to work!

Software Features

  • 10-band parametric equalizer per channel
  • High and low shelf EQ per channel
  • Variable crossovers: High/Low/Band-Pass slopes 0-24dB, Linkwitz Riley/Butterworth/Bessel
  • Time delay: 0 to 277 cm or 8.1471 ms adjustable in 1 cm steps
  • Input/Output mixing to customize the signal path
  • Phase adjustment
  • Customizable name/ID for each preset
  • Minimum/maximum voltage protection
  • Load, save, recall, or delete preset files
  • Software controllable level attenuation on the preamp and high-level inputs
  • Reverse voltage protection
  • Mute circuit and delay

Windows-Based GUI


The DSP-408 is easily controlled via a Windows application developed by Dayton Audio. This application features all the tools you could need to make your audio system sound its very best, while still being easy to use.

Android App with Bluetooth Connectivity (Optional)


In the modern age of mobile devices, breaking out the bulky laptop to make modifications to your sound system can seem like a chore. Thats why Dayton Audio has given you the option to connect to your DSP via your Android mobile device using the DSP-BT4.0. This Bluetooth 4.0 dongle allows users to completely tune their DSP via the mobile DSP-408 app. In addition, the user can also use their mobile Bluetooth device as an audio source!

Wired Remote Control (Optional)


The allure of a wired remote control is obvious when installing in a mobile environment. Being able to effortlessly control the volume and which preset you are using is an invaluable feature. To satisfy the need for the customers installing the DSP-408 in a mobile environment, Dayton Audio has offered the DSP-RC as an optional accessory.


Package Contents

  • 1 x DSP-408 Processor
  • 1 x Power Adapter (12V, 1.5A)
  • 1 x High-Level/Power Input Harness (16-pin)
  • 1 x USB A to B Cable (10)
  • 2 x Mounting Brackets
  • 4 x Mounting Bracket Machine Screws
  • 4 x Mounting Screws
  • 4 x Rubber Cushion Pads
  • 1 x Introduction Card


Specifications: · Chipset: Analog Devices ADAU1701 SigmaDSP 28-/56 Bit Audio Processor · RCA inputs: 4 · RCA outputs: 8 · High-level inputs: 4 · High level input impedance: 180 ohms · RCA input impedance: =20,000 ohms · Frequency response: 20 - 20,000 Hz · Output impedance: <50 ohms · Maximum input level: =3.2V · Signal to noise ratio: =115dB · Remote out current: >500mA · Power adapter input voltage: 100 - 240VAC &bull Power adapter output: 12VDC, 1.5A • Operating voltage: 9-17V · Dimensions: 6.53" W x 1.02" H x 4.55" L.

Model Number DSP-408
Color Black
Unit of Measure Each
UPC 848791004957
Warranty - Parts 5 Years
Warranty - Labor 5 Years
Product Shipping Weight (lbs.) 1.6
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