" When I unplug from the loop in the rear its very loud:
This statement is very confusing.
From what I can discern so far:
- The input jack on the front produces low sound
- The FX Return produces sound (as does the Aux In)
- The Ext Spkr jack works
(so the power amp is good)
What is not clear is what happens when you use the FX Send jack to another amplifier.
Also, have you run a patch cable from the FX Send to the FX Return jacks?
It appears that the power amplifier is good.
Until you prove out the FX Send, it is not clear whether or not you have a preamp issue or an FX jack issue.
This statement is very confusing.
From what I can discern so far:
- The input jack on the front produces low sound
- The FX Return produces sound (as does the Aux In)
- The Ext Spkr jack works
(so the power amp is good)
What is not clear is what happens when you use the FX Send jack to another amplifier.
Also, have you run a patch cable from the FX Send to the FX Return jacks?
It appears that the power amplifier is good.
Until you prove out the FX Send, it is not clear whether or not you have a preamp issue or an FX jack issue.