My HT-20H FX loop when engaged is causing crackles in the sound
![Sad :-(](./images/smilies/icon_e_sad.gif)
This is more evident when driving the amp.
What i've tried:
turning off the pedels in the FX loop - Crackles stop
tried different cables (that I know are ok) Send & Return - Crackles still there (when pedal turned on)
tried different pedels - Crackels still there (when pedal turned on)
This is only an issue when the FX loop has an activated pedal through it, obviously doesnt happen when nothing is even plugged into the Send/Return
anyone got any ideas? or anything else I can try to find the problem?
FX is also set to the +4db.. and I'm driving a 2x12 cab with V30s at 8ohm for the cab - using the 8ohm output on the Head.
Praying for something I can fix myself... but its looking like an AMP tech job at the minute, and I have a recording session on Sunday
![Sad :-(](./images/smilies/icon_e_sad.gif)
I've had the amp a couple of years, power tubes and pre amp tubes replaced last year.