Frequency Central proudly announce the release of the ‘System X Filter 2.0’. It’s a clone of the Roland System 100M VCF, and uses 2 x LM13700. There’s an additional 12dB/oct output as well as the 24dB/oct output.
First up, classic 24dB/oct LPF. The two VCOs are my Hearn Morley HMVCO1c, there is a little -1oct subosc added as FM of the VCF towards the end of the clip:
Next, the 12dB/oct LPF output, again a touch of subosc FM towards the end:
Finally, by inverting one and mixing both 12dB/oct and 24dB/oct outputs to achieve phase cancellation we get bandpass:
Apologies for the meandering nonsense keyboard playing!
Module width: 10HP
Module depth: 65mm
Current draw: +10ma/-10ma
Price: £160 GBP plus shipping
For orders and queries please contact me at: