I just scored a Mesa Single Rec Solo 50 head. Sounds amazing, super stoked on it. So I set up my pedal board as usual, EFX send > MXR 10 band eq > Guyatone DD3 delay > BBE Sonic Maximiser > return. Everything sounds good except the MXR makes a loud pop when I click it on. Sounds like shit so I click it off. Another loud pop. I try it again, same thing. Amp seems fine when I play it with no efx. So I run my efx board through another amp. Now the MXR volume and gain lights are blinking, and when I click it on (no loud pop) there's almost no sound out of the amp. Turn it off (No loud pop) and the amp sounds fine again. Anyone have any idea WTF happened? I'm fucking bummed, I love that EQ.