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Dave Smith Instruments DSM03 Feedback Module


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Dave Smith Instruments Eurorack Tuned Feedback Module with Low Pass Filter and Noise Source

At the heart of the Dave Smith Instruments DSM03 Feedback Module is a tuned feedback line for sound mangling, a resonant low pass filter for tone shaping and a triggerable noise source for Karplus-Strong-type plucked string synthesis. Tuned feedback has been a part of the Dave Smith tonal palette since the groundbreaking Evolver and is also a key sound-shaping component of the Pro 2 and Prophet 12 synths.

Plug it in and tweak it
DSM03 is a 10hp standard eurorack format device with interconnections made using 3.5mm phone jacks. A set of inputs allow individual voltage control of feedback amount, tuning, low pass filter frequency and filter resonance. The module provides one audio input and one audio output as well as an audio trigger input for the noise source.

Filter design
The 4-pole resonant lowpass filter is a digital design based partially on classic analog filters of the past. It features over-sampling and numerous refinements to the signal path, which is 24-bit, 96 kHz resolution for outstanding audio fidelity. It's a great-sounding design that works well both in the feedback context and as a standalone tone-shaping tool.

Creative possibilities abound
If you're looking for something esoteric but still fundamental to the 'Dave Smith sound,' add this secret weapon to your modular arsenal. From Karplus-Strong synthesis to metallic, industrial grit, the creative possibilities are wide open!

  • Module controls
    • Amount knob: controls amount of feedback
    • Tuning knob: controls tuning of feedback
    • LPF Freq knob: sets cutoff frequency for low pass filter
    • Resonance knob: sets resonance amount for low pass filter
    • Attack knob: envelope attack stage control
    • Decay knob: envelope decay stage control
  • Patch points
    • Fbk Amt: -5V to +5V CV input to control amount of feedback
    • Tuning: -5V to +5V CV input to control tuning of feedback
    • LPF Freq: -10V to +10V CV input to control cutoff frequency for low-pass filter
    • Resonance: -5V to +5V CV input to control resonance amount for low-pass filter
    • Input: -2.5V to +2.5V audio input
    • Output: -2.5V to +2.5V audio output
    • Trigger In: 0 to +10V gate input to trigger noise source
  • Physical specifications
    • Size: 10hp
    • Module depth: 1.54" (measured from back of panel with power cable installed)
    • Power: 10mA @ +12V, 20mA @ -12V
More Information
MPN DSI-4002
Manufacturer Dave Smith Instruments
Condition New
Included from Manufacturer Mounting screws
Ribbon Cable
Module Type Misc/Other
Module Width 10hp
Depth 39mm
1U Module No
Module Power Usage 10mA @ +12V
20mA @ -12V
+5V Required No
Unique Features 24-bit, 96 kHz resolution digital signal path

Dave Smith Instruments Limited Warranty

Dave Smith Instruments warrants that its products will be free from defects in materials and/or workmanship for one (1) year from the date of purchase.

Please register your product online at at the Dave Smith Instruments website to establish the date of purchase. This is not a requirement for warranty service, but it will help expedite the warranty service process.

Please contact a Dave Smith Instruments support representative to determine the best course of action for getting your product repaired. For your own protection, please do not return any product to Dave Smith Instruments without a return authorization (RA) number.

If you need to return your instrument for repair, you are responsible for getting it to Dave Smith Instruments. It is highly recommended that you insure your shipment and pack it in the original packaging. Damage resulting from shipping a product with insufficient packaging is not covered by this warranty.

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