Dual spectral tilting tone control.

dual channel tone control
optionally stereo-linked, and CV controlled
switchable between spectral tilting (3dB/oct) and mid-range bell EQ
feedback control and soft saturation
designed with discrete transistor OTA cores

http://riversynths.com/product/marble/

• 70 mA +12V
• 60 mA -12V
• 0 mA 5V
• 32 mm Depth

Available as an assembled Module and as a DIY project.

This Module is discontinued.