Ok, I want to run a 10band EQ, delay and a chorus through my amps effects loop. However my amp seems to have two of them. Its a Marshall JVM 410h head. One says serial/parallel FX loop and it has a wet/dry knob and fx level switch (the switch says: +4dbu -10dbv ) and the other loop says power amp input/serial loop and has a bypass/active switch. which loop should I be using and what are the differences/functions of each?
ether, but the switchable one will probably be the best(it will remove all the pedals in the loop when turned off, so they wont affect your sound).
Yeah use the one with the -10db switch selected when using pedals in the loop.