amp: Bad Cat Panther preamp tubes: ch 1 12ax7; ch 2 EF86 to be fair, BOTH channels take pedals well, BUT, the EF86 channel is the gainier channel, and EVEN with the gain all the way up, this channel remains VERY clear and detailed with the added signal from a pedal... even if there is a fair amount of gain/squash in the pedal... I've had several other amps that TOTALLY fart out when pushed up front with a pedal... the Bad Cat DOES NOT! Really cool feature to have on an amp if you want to boost with pedals. so, is this the nature of EF86 tubes, or is it the amp circuitry...??