I played a gig on New Years Eve and had a real problem with a nasty high pitched feedback.
I was playing through an HX Stomp and SD170 into a pair of 1x12 Bluguitar Nanocabs connected in series for a 16 ohm load. Volume on the HX Stomp was at 12 o' clock as was the SD170 so not really crazy loud.
Admittedly i was only about 5ft from the cabs (small stage) with no option to change position but the feedback was horrendous. I tried angling the speakers away from me but that had no effect. I switched off my vocal mic, still no difference. The only thing that worked was dropping the 2 volume controls down to 11 o' clock but as soon as i tried to boost my level for leads, the feedback returned.
I played the same gig last year, stood in the same place but through my Mesa Express and an oversized 1x12 cab - no issues whatsoever despite being louder.
Anyone know why that would be or what else i could have done other than turning down?
Comments
Might just be that certain frequencies are more pronounced on this rig than with your mesa, annoyingly the freqs that cause microphonic feedback in this case.. I would try lowering the gain then playing with your EQ, the mids in particular to see if you get anywhere. Good luck!
I had a bit of feedback at NYE gig too. I play bass and my volume dropped out and only the descending line in These Boots Are Made For Walking through my OD was heard. I unplugged from my pedal chain straight into my amp.
The pedalboard was plugged into the Normal channel, so when I plugged straight in i went into the Bright channel. I'm convinced my feedback was caused by being plugged into the Bright.
Turned out I must've stepped on my lead and pulled it out of the Normal a bit and that's why my volume died. It mustn't have been totally disconnected as there was signal when I had OD engaged.
Then the guitar player in the headline act had a thought and said I wonder if there is a hearing aid loop in the venue. Found the maintenance man and he said there was. Turned it off and voila Everything was fine!