Anyone else found a boss LMB-3 to be a very efficient loud hiss generator, even with no signal present?
I was having a loud hiss issue with my rig at rehearsal last week and although I suspected that the cab's tweeter had got switched on in transit, on checking the cab at rehearsal today I found that wasn't the case.
Then I unplugged my pedalboard and plugged my mustang straight onto the amp and the hiss was totally gone. Only the LMB-3 was actually active on the pedalboard when it was plugged in, with all four knobs at 12 o'clock. I have recently started adding in a bit of extra mids and treble on my ABM600 amp which I guess is exposing the LMB-3 as a bit of a hiss generator whereas it wasn't as noticable when I ran the amp with a flatter eq.
I've brought the pedalboard home, so will try to reproduce the issue with my practice amp and investigate further. I've also just ordered a (secondhand) BC-1X so I can also investigate whether that might work any better than the LMB-3 and not add loads of hiss.