I have had just about every amp around(mesa, engl, rivera,marshall,crate,metaltronix,bogner)- but I have a rg100ht from 87 that I still come back to and just bought a rm100m tube head with the ultra, modern, recto, plexi, and the clean channel modules. I just seems randalls are timeless for sound and are built well. The eq-ing of these amps is close to the riveras I guess since the amps heritage is more close to a fender than a marshall(clean channel). distortion is close to a boogie.