Mutant Hi Hats PCB/Panel

A classic electro percussion synthesis design reborn as something completely different.


HexInverter wanted to recreate a classic hihat synthesis design as something new and exciting, so, they took the super electro 808 circuit and transformed it into a powerful creative tool for modular synthesis!


This is a PCB/Panel set in the Eurorack format.

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$69.99

Details

Details

FEATURES

  • Analogue hihat circuitry capable of synthesising vanilla TR-808 open and closed hihat sounds (simultaneously)
  • External audio input lets you synthesise hihats from virtually any sound source (Jupiter Storm, vcNOIZ, etc.)
  • Lo-fidelity original VCAs replaced by OTA-based modern VCAs
  • VCA DRIVE control for each hihat allows you to dial in anything from soft metallic hihats to extremely overdriven, crunchy hihats
  • Exclusive switch lets you select how the two hihats (open/closed) interact with eachother when triggered at the same time
  • Cutoff frequency control for internal resonant bandpass filter 
  • Resonant filter can be switched on/off
  • Modular level mutual accent input (0-5V CV)
  • Trigger input accepts almost anything as a trigger signal
  • Non-invasive analogue optocouplers used for voltage control, thus, completely vintage sounds can still be had if that's what you're after!
  • Completely redesigned, hi-fi signal chain spares no expense by replacing cheap transistor amplifiers with low noise opamp and OTA equivalents
  • You can dial in super hot, modular level output levels (up to 20Vp-p!)

Specs & Downloads

Specs & Downloads

manufacturer HexInverter
HP 13
Depth No
+12V 75mA
-12V 45mA
+5V No
Additional Resources Build Guide Bill of Materials Mouser Cart

Reviews

Customer Reviews (2)

**** +1 would build againReview by Dru
This build is really nice. The triple pcb stack is a bit involved but a fun build overall. The sound is nice. Closed hats are great open hats have a lot of control in the decay. You can get really long decays. Overdrive is nice. The filter is really good. Very crisp. (Posted on 9/1/2016)
Love itReview by Thom
This is a great module. Pretty straightforward build, too. Be warned, though, the build instructions are not super-detailed.

Two things that were minor hurdles for me. First, calibration is tricky in that the "window" is pretty small and I had to turn the trim pot many turns. Second, one of the caps shorted something that made the closed hat very quiet. I had to put in a little extra space when I put the boards together.

All that being said, it was a very rewarding build. And I love me some hi hats. (Posted on 8/11/2016)

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