Hi guys, long time to post here.
My good old friend Ettore_M gave me as a present his amazing engraved Engineer's thumb compressor, check this marvelous build.
He did an outstanding job.
http://www.madbeanpedals.com/forum/index.php?topic=11664.msg105300#msg105300
So I was thinking adding a blend knob to this great compressor, so I took JMK panner and put it with the compressor.
http://jmkpcbs.com/wp-content/uploads/2014/03/Panner.pdf
Of course it didn't work as expected... so I started reading posts in the forum.
Everyone said that compressor has phase inversion and obviously we can't mix-blend different phase signals.
The result was volume drop and tone sucking.
After that I put an inverting amplifier before the volume control of the compressor so I can flip the phase 180 degrees.
The result was the same as before, in the middle position where is 50% wet 50% dry I had again volume drop and tone sucking.
Since now the phase is the same I am thinking there is probably an impedance issue.
Do I have to omit the inverting op-amp and put an emitter follower buffer after the compressor volume control? Any thoughts on that?
My good old friend Ettore_M gave me as a present his amazing engraved Engineer's thumb compressor, check this marvelous build.
He did an outstanding job.
http://www.madbeanpedals.com/forum/index.php?topic=11664.msg105300#msg105300
So I was thinking adding a blend knob to this great compressor, so I took JMK panner and put it with the compressor.
http://jmkpcbs.com/wp-content/uploads/2014/03/Panner.pdf
Of course it didn't work as expected... so I started reading posts in the forum.
Everyone said that compressor has phase inversion and obviously we can't mix-blend different phase signals.
The result was volume drop and tone sucking.
After that I put an inverting amplifier before the volume control of the compressor so I can flip the phase 180 degrees.
The result was the same as before, in the middle position where is 50% wet 50% dry I had again volume drop and tone sucking.
Since now the phase is the same I am thinking there is probably an impedance issue.
Do I have to omit the inverting op-amp and put an emitter follower buffer after the compressor volume control? Any thoughts on that?