Juanma uses this amp selector/switcher to send the guitar signal to a dry amp, through his board to another amp, and to the tuner. Juanma explains the pedalboard he usually used in this radio/internet show called ''Masterclass 6x3'' by Sergio Bustamante in Radio 3, the spanish public music radio.more
Back when I use to play with more amps on stage, I wanted to switch between them. First I used a JCM 800 100 watts head for the basics and lead parts and did some additional sounds with a JCM 800 50 watts head so I switched between them with the Lehle A and B. I always used the C for my tuner to tune live on stage without making noise. Lehle is so smooth with the switching thing and very quiet.