VTCL-2 Tube Optical Compressor User’s Guide
Pin Selector (Rear Panel): selects the output or input pin to which the hot (+) signal is routed . The I.E.C. standard
is pin two hot. Some equipment may not adhere to this standard.
Here are some of the popular compressor settings which duplicate the settings on the vintage Fairchild 670 and
Urei/Teletronix LA2A compressor/limiters. Please bear in mind that the slower release times only occur when
the gain reduction is high (-20 to -30 dB). These are the Attack and Release times for the VTCL-2 at a variety of
gain reduction (compression) settings:
The following are the LA2A and Fairchild settings:
Setting Attack (ms) Release (ms or sec)
LA2A 10ms 200ms to 5sec
Fairchild #1 1.5ms 250ms
Fairchild #2 1.5ms 800ms
Fairchild #3 3ms 2.2sec
Fairchild #4 6ms 5sec
Fairchild #5 3ms 500ms to 4sec
Fairchild #6 1.5ms 500ms to 4+sec
6900 Kingsbury Road | Templeton, CA 93465 | 805-461-4100 | http://www.demeteramps.com/
