MATRIXSYNTH: Future Sound Systems P.O.C.A. VAC1 demonstration

Thursday, November 05, 2015

Future Sound Systems P.O.C.A. VAC1 demonstration


Published on Nov 5, 2015 Future Sound Systems

"This video demonstrates the workings of the new FSS VAC1 Passive Optically-Controlled Attenuator module."


via Future Sound Systems

"The Passive Optically-Controlled Attenuator, or P.O.C.A., is designed to give a set of vactrol-based gates in a compact-but-usable module. Its four gates can be set to act as low-pass-gates, or normal optically-controlled attenuators (for a "VCA" type action) via jumpers on the rear of the module. CV is normalled in a downwards fashion, so that control signals input to the top gate can effect the gate at the bottom. This is also true of the audio, but with a gate's output normalled to the next gate's input. This allows for steeper filtering slopes and sharper control. It is recommended, however, that only two gates are used per chain as external buffers may struggle with high impedance inputs. To summarise, the features of the P.O.C.A. VAC1 are:

-Quad optically-controlled attenuator module
-Jumpable LPG or VCA modes
-Normalling provides easy control and signal patching
-2mm thick fibreglass panel
-Sturdy but compact design and construction
-Hand assembled and tested by Finlay Shakespeare at FSS HQ in Bristol

Price: £70 + shipping, calculated upon checkout"

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