Hi All!
1. I plan to use THAT vcas for a stereo compressor. This vca uses a 5k1 resistor in the negative power rail.
1A. ¿Is it ok to use only one 5k1 resistor to power 2 vca?
And a strange question:
2. In stereo audio opamp circuits, (mixers, eq, etc) given the use of 1% resistors, and equal level stereo test signal,
2A. ¿What is the maximum gain mismatch you have ever find between output channels L&R?
2B. ¿Is it common to use trimmers to match the gain of stereo fader amplifiers?
In my case i found 1dbu mismatch between L and R channels, and I placed a low value resistor in the higher level channel to match the other channel level to within 0.5dbu maximum. That solved the problem, but you don't know how louder will be a channel with respect to another, until you apply a stereo test signal.
¡Thank you for your advise!
Jay x.
1. I plan to use THAT vcas for a stereo compressor. This vca uses a 5k1 resistor in the negative power rail.
1A. ¿Is it ok to use only one 5k1 resistor to power 2 vca?
And a strange question:
2. In stereo audio opamp circuits, (mixers, eq, etc) given the use of 1% resistors, and equal level stereo test signal,
2A. ¿What is the maximum gain mismatch you have ever find between output channels L&R?
2B. ¿Is it common to use trimmers to match the gain of stereo fader amplifiers?
In my case i found 1dbu mismatch between L and R channels, and I placed a low value resistor in the higher level channel to match the other channel level to within 0.5dbu maximum. That solved the problem, but you don't know how louder will be a channel with respect to another, until you apply a stereo test signal.
¡Thank you for your advise!
Jay x.
