How do they get along?
mono extreme amps and 3.5Rs really work well togetherr. I've been able to run the speakers with a complete fuse bypass since I got these amps. Effortless, smooth. For the last 2 years, I haven't seen the need to upgrade anything in the amp area, while the rest of my system has gone through multiple upgrades.
A friend replaced his Bryston Monos on 1.6s with the same amps. He's a very happy camper as well
Peter
