Drumbrute - Mods

with a high-pass and low-pass mode. You can create a "pseudo-mod" by routing an individual output (like the FM Alt Kick) back into the External In

Decay Extension: For those who want Kick 2 to boom like a classic 808, a common mod involves swapping the decay potentiometer or adding a parallel resistor to extend the tail of the envelope.

Adding external CV control over the filter cutoff for specific, individual channels. The "Maffez" Modding Approach

: To increase the impact of the lower t-bridge oscillator in the snare, wire a 10nf capacitor across the existing capacitor located just to the left of Headphone I/O Repurposing drumbrute mods

This is complex – better to use the individual outs mod and trigger external modules instead, unless you really want to replace the internal sequencer.

Unlike digital units, the DrumBrute's 100% analog signal path allows for direct component-level manipulation. Common modifications target three areas:

The snare's snap relies on an internal noise generator. By injecting a slight overdrive into the noise VCA portion of the circuit (using a small diode clipping pair), you can give the snare a crunchy, lo-fi vintage sampler vibe. Hi-Hats and Cymbal Mods with a high-pass and low-pass mode

Independent developer Maffez has pioneered several high-impact modifications for the original DrumBrute: Description Target Instrument

DrumBrute mods range from simple external tweaks to advanced circuit-bending, aimed at transforming the unit's character. Why Modify the DrumBrute?

Increasing feedback or clipping in the kick circuits for more 909-style punch. Kick 1 & 2 The "Maffez" Modding Approach : To increase the

Each voice’s trigger input pad is around +3.3V. Feed a >2.5V gate from external source into a comparator that drives a transistor to simulate a button press or trigger signal to the voice’s trigger input on the PCB.

Analog drum machines generate sound using specific circuits composed of resistors, capacitors, transistors, and operational amplifiers (op-amps). By changing the values of these components or adding potentiometers (pots) and switches, you can alter the behavior of the circuit. Modding the DrumBrute allows you to:

Before you start soldering, you should know that Arturia included several internal potentiometers (trimmers) on the PCB. These allow you to calibrate and slightly alter the character of the sounds without adding new components.