Erica Synths High-Pass VCF Voicecard for Bullfrog Synthesizer

Expand the functionality of your synth with the Erica Synths Highpass VCF Voicecard, an expansion card for the Bullfrog synthesizer that expands the sound treatment capabilities of the instrument by bringing a high-pass voltage-controlled filter into the mix, allowing for the exploration of high-pass and bandpass filtering under CV control.