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TR-606 Bass Drum Clone Redesigned as a 2hp Eurorack Module (Rev. 3)
Synth
Audio

BD-606 Bass Drum Module

Sold by Drachma Mfg

$45.00

No tax for United States [change]
Please see options table for more information about available options.
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Original Design
This product was designed by Drachma Mfg. By buying this product your support original hardware creators.

Description

The BD-606 is a TR-606 bass drum clone in the Eurorack format, packaged in a small 2hp form factor to minimize used space on your rack. It supports additional functionality not available in the original TR-606 drum machine as well as features that make it more suited to the Eurorack format:

  • Accent (AC) CV / Gate (GT) Input: The accent input allows each trigger to have a different accent setting for more dynamic drum tracks. The BD-606 now has two selectable accent modes: AC CV mode and AC GT mode.

    • AC CV Mode: AC CV mode allows the Accent setting to be modified by an external analog CV input. The AC trim setting acts as an offset for the AC CV input voltage.
    • AC GT Mode: AC GT mode allows the Accent effect to be gated (On/Off) rather than continuously variable, similar to the functionality of the original TR-606. The AC trim setting sets the accent amount for gated beats.
  • Tone: Adjust the tone of the drum - ranges from a deep drum kick to a high 'tom' sound.

  • Oscillator Mix: Set the mix of the internal 'bass' and 'click' oscillators.

  • Internal Gate to Trigger Conversion: No need for an external converter - the module responds to only the rising edge of a gate signal and creates a precisely timed trigger pulse. This avoids double triggering on the falling edge of a longer gate signal.

Documentation and Assembly Guide

See the module documentation and assembly guide below for more information:

Module Documentation, BOM, and Assembly Guide

Kit Options

Option What's Included
SMD-Assembled Kit SMD components come pre-soldered to the main board. Additional THT assembly required (Pots, jacks, headers, board assembly). All THT components included in kit.
Fully Assembled and Tested Module comes fully assembled and tested to ensure it is working properly.

All kits and assembled modules include a 20cm 10- to 16-pin power cable.

Hear how the BD-606 Sounds:

Links to code and documentation

No additional links provided for this product.

Product HS Code: 92099400

Shipping policy

Orders are generally shipped out the next day. Fully-assembled modules are built to order and can add an extra day to shipping.

The seller

Drachma Mfg

Drachma Mfg logo

Livermore, California, United States
0 orders since Jan 24, 2026
Mechanical engineer and electronics hobbyist in California. I design kits for synthesizers, with a focus on making them affordable and user-friendly.