This Model Has Been Discontinued


Virtually any EQ Option Your Heart Desires


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The DSI-1 is a feature-rich audio signal processor that will allow you to precisely tune the acoustics of your car audio system for maximum listening pleasure. It can be integrated into OEM systems or used in conjunction with aftermarket systems to realize the full potential of your audio components.

The tuning software was designed with ease of use in mind. The functions are cleanly laid out in a single window allowing the user to quickly access all DSI-1 functions without switching between multiple screens.

The DSI-1 is also designed to work in conjunction with an optional remote control. The remote control allows easy access to the USB port for PC connection, the ability to select from up to four custom tuned presets, input source selection and master volume control.


  • GUI (graphical user interface)
  • Adjustable Time Alignment: 0-168.2ms
  • Input Summing Capability
  • Adjustable Crossovers (LPF,HPF, BPF: 6dB, 12dB, 24dB, 36dB)
  • 10 Band Parametric EQ (20Hz-20kHz +/- 15 dB, Q-Factor 0.5-10)
  • Phase Adjustment: 0-180 degrees
  • AUX 2 Channel analog input
  • SPDIF Digital Optical Input


Input Channel(s): 6 x Low or High Level
Output Channel(s): 8 x Low Level
RCA Input Voltage Sensitivity: .05-22 / Up to 25 Watts
RCA Output Voltage: 3
Remote Control: Remote Available, Sold Separately
Dimensions (Inches): 7.95 x 4.7 x 1.71
Dimensions (MM): 202 x 119.4 x 43.5
Shipping Weight (Lbs): 5
Price (USD): 599 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.

Included in the Box

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