Ok, mates, I posted this in the Dingwall club, since it was affecting my bass more than anything, BUT, I had to do some radical knob twiddling to get usable sounds out of my amp on Saturday night...
"Ok, in today's episode of "What, exactly, is going on here?"...
So, Saturday night was just a weird night. We were playing at an out of town place we've played several times. The joint has super dirty electrical systems, so I'm used to my rig not being at its optimum and I was expecting some extraneous noise, because that's what always happens when we play there. Get setup, turn everything on, there's the buzz. I'm playing thru a relatively new GK Legacy 800 with all the grounding intact.
So, what does this have to do with Dingwall? Well, that's where the weird part comes in. So I plug in my 6er to soundcheck, and there's almost no output, but when I swap to passive mode, there's all my output. I'm thinking dead batteries, so I swap batteries, same issue. Negligible output in active, slammin' output in passive. My 5er, my NG, and my FBass were all normal. Get through the night, wondering if there's a problem with my bass, my amp, or both.
Get home from work last night, settle into my studio to try to diagnose the problem, plugged my 6er into my little board, everything was as normal and loud as it should've been! Active & passive both sounded great. Grabbed my GK head and plugged it into the cab, and it was just fine. I even put the old batteries back in, and it was still fine...
Can dirty electricity cause my bass to not work in active mode? I'm trying to make a connection, but that makes no sense to me..."
You can see why this was Dingwall focused, but the fact of the matter was I had to almost dime the trim knob AND the master to get a usable volume, UNTIL we got to the 2nd set, then it went almost back to normal. The amp wasn't cold, and I had bypassed my board until the 2nd set, so that wasn't it. I'm just trying to find something logical, since we'll be back there in a couple of months...