Fixed High pass filters

This simple module is designed to replicate the fixed 6dB/octave high pass filter in the Roland 100m M-121 VCF module.

The M-121 HPF has four cut off settings:
- off
- 1kHz (actually 1026Hz)
- 2KHz (actually 2192Hz)
- 5KHz (actually 4822Hz)

This module has:
- Two separate -6dB/octave high pass filters
- The option of either having the “off” position, or replacing it with a 500Hz filter
- Buffered inputs and outputs
- If no jack is inserted into “in” of the lower filter, it will default to the same input as the upper filter.

• 7 mA +12V
• 7 mA -12V
• 0 mA 5V

Module is available as a DIY project only.

This Module is currently available.