Here's my setup: Ken Smith BSR5M --> Avalon U5 (line out) --> Crest CA6 --> Bergantino HT322. I will also now be using the mic output from the U5 to send to the board when needed. Is there a device/pedal/AB switch/something that I can use to turn off the signal to the board when needed? Typically, there's nobody running the board at church and sometimes we play stuff that I and a few other musicians aren't alsways familiar with. I would like the ability to cut the signal to the board but use my cab as a monitor at a low volume while I noodle around a bit to figure songs out. My plan would then be to crank the volume and send signal to the board once I've figured out the basics to the song. It doesn't happen frequently but every once in a while we might play something that I don't know. Any suggestions?