Erica Synths Hexinverter Mutant Bassdrum

Analog drum box module - eurorack format

• Analog bassdrum circuit inspired by TR-808 design
• Built-in voltage controllable distortion (batteryACID distortion)
• Distortion can also process external signals (when not used on kick)
• CV control of distortion amount, decay and pitch
• Redesigned hi-fi audio chain with low-noise op-amps
• Reissue redesigned by Erica Synths in collaboration with Hexinverter

Erica Synths Hexinverter Mutant Bassdrum

What happens when you combine voltage-controlled distortion with one of the most iconic loudspeakers ever? The Mutant Bassdrum is born from the legendary TR-808 synthesis approach, completely redesigned for use in an analog modular synthesizer. The result is a kick capable of 808-style "vanilla" sounds as well as more aggressive and modern timbres thanks to the built-in distortion.

From TR-808 to modular: more control, more timbral range

In addition to the classic analog character, the module offers CV control over key parameters: you can switch from short, dry hits to long, deep kicks by acting on the decay, shape the distortion in real time, and move the pitch (with rough v/oct-style response, not musically in tune). Voltage controls use non-invasive analog optocouplers, so you can maintain a fully vintage sound when you want it.

CV distortion and external signal processing

"BatteryACID" distortion is an integral part of Mutant Bassdrum's personality: you can control the amount of it via CV and push the kick into harder, more present territories in the mix. Also, when not busy on the kick, the distortion accepts external inputs-a great way to dirty up acid leads, basslines, or add character to other sources in your system.

Reissue with Erica Synths Support.

After the closure of Hexinverter Électronique's operations (announced in September 2022), Erica Synths decided to continue production and support of some iconic modules. While maintaining the original functionality, the hardware has been redesigned by Erica Synths in close collaboration with Hexinverter, and support is guaranteed for the reissue versions.

Technical Specifications.

• Format: Eurorack
• Audio output: 10Vptp
• CV levels: -5V to +5V
• Power consumption: +21mA / -16mA
• Width: 13HP
• Depth: 20mm