Invert mode on Mesa Mark IIC+/++ reissues???

A

ARMANDO DIAZ

Well-Known Member
Hello! Hopefully someone has knowledge on this, these Mesa amps have a TRS input jack for EQ/REV on/off operation. I'd like to control this via a custom din to breakout 1/4" TS and TRS cable. Can anyone verify that "Invert Mode" would be necessary on the Rack Gizmo to control the EQ/Reverb control of these amps?
 
My information indicates that "Invert Mode" is not necessary with the IIC+/++ reissues as they are true to the originals except for the transformers, from what I remember when comparing schematics. I designed the Mesa MIDI Matrix Amp Controller and my records from that indicate the switching functions were Normally Open, not Normally Closed, which would require "Invert Mode".
 
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