Ive read that for JTM45s and Bluesbreakers one mod is to set the impedance selector switch to 16 Ohms to run into an 8 Ohm cab? I also read that Cesar Diaz -SRV's late amp tech- used to do similarly with his Fenders. What's the theory behind this? What is the effect? Safe to do on a late '90s Bluesbreaker reissue?
Thanks in advance!
Thanks in advance!