Stoel Music Systems Quad VCA Eurorack Module

White Eurorack module by Stoel Music Systems labeled Quad VCA. Features four CV and audio input pairs plus a single output, all with 3.5mm jacks. Panel is in clean condition with no visible damage. The Stoel Music Systems Quad VCA provides four logarithmic (audio) VCAs that mix to one common output in a compact 4HP module. Both the audio jacks and the CV jacks are normalled from top to bottom. If a CV signal is plugged in, and the CV jacks below it are unused, the same CV signal goes to the remaining VCAs. This applies the same VCA signal to multiple signals, such as in stereo or quad-channel configurations. Likewise, when an audio signal is plugged in, and the audio jacks below it are unused, the same audio signal is provided to the VCAs below. This configuration allows for the remaining VCAs to be used in parallel. Using two VCA channels in parallel reduces the noise floor by 3dB, and using all four channels in parallel reduces the noise floor by 6dB. Please note there will be an increase in output level when VCA channels are used in parallel.