Metasonix - R51 VCA/TubeDistortion

The R-51 is unique and never before available in any form. It uses two remote-cutoff pentodes, type 26A6. Two CV inputs are available for controlling circuit distortion from less than 2% up to more than 40% (varies with individual tubes). Two CV inputs also allow use of the R-51 as a conventional synthesizer VCA, with gain variable from less than -75dB to +5dB (typical). Both distortion and VCA features can be used simultaneously. This allows true vacuum-tube asymmetrical soft clipping to be applied to any waveform. With suitable CV processing, the R-51 can be configured as a true "variable mu" limiter or expander.