Format: Eurorack
Width: 10HP
Depth: 35mm
Current: 25mA @ + 12V, 25mA @ -12V
The 3109 VCF/VCA is a module that implements a combination of low-pass VCF and VCA, and is built around the AS3109 VCF IC chip. The AS3109 is a modern version of the IR101 chip used in vintage Roland synthesizers such as the Jupiter series/Juno series/SH-3109.At the same time as trying to reproduce the characteristic sound of these synthesizers, this unit also has a 'Volume Drop Compensation' function that compensates for the phenomenon of ``the volume drops when the resonance value increases'' seen in filters based on IR3109. It features a built-in VCA for added versatility in large setups.The implementation of 1V/Oct tuning also allows the unit to be used as a perfect VCF keyboard tracking or VCO.
This machine isBlack High PassandBlack Low Pass VCFis a satellite module ofBlack Filter CouplerCompatible with The Filter Coupler turns both high-pass and low-pass filters into band-pass and notch filters with adjustable bandwidth and center frequency and CV control, just like the classic Moog system, making your modular • Greatly expands the functionality of the system.Note that the Black Filter Coupler is designed to work only with Erica Synths modules, so both a Black High Pass and a Black Low Pass are required.To connect this unit and the Black Filter Coupler, remove the jumper on the right connector labeled COUPLER CONNECTOR and connect using the 2x5 pin ribbon cable included with the Filter Coupler, as shown in the figure below.
