Synthetic Sound Labs 2140 ThunDrum Eurorack Percussion Module

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This product will show slight signs of wear, excellent condition.

Comes with original box and ribbon power cable.

Boom, tong, boing, clank, ting.  From bass drums, toms, bongos, congas and tablas to finger cymbals, garbage pail lids, and yes, even cowbells.

The ThunDrum 2140 is a flexible two oscillator FM percussive membrane / metal based drum voice in a 8 HP Eurorack module. 

We tried hundreds of modular patch variations to get to the best combination of simplicity and tonal versatility in a reasonably priced, compact and user-friendly format – And we think we’ve found it!

The main Tone oscillator (VCO) has a linear control response and is adjustable from zero (not thru-zero) to several kilohertz, but the key to the 2140’s unique sound is its enveloped linear FM (frequency modulation).

A secondary wide range “sine” FM oscillator output is routed thru an internal VCA (FM Amount).  As pre-patched, the modulation depth is controlled by the Envelope output.  This allows higher harmonic contents at the beginning attack of the envelope, which trail off as the tone decays.  Of course, this is entirely under your control, and you can easily patch around this normalization and create your own variations.