Help me out here... I've just recently replaced an ailing Hartke head with an Eden D410XLT, a Crown XLS202, and an Art preamp. I'm getting some hard-to-tame overdrive and fuzz that I never experienced with the Hartke. It's a 4-ohm cab and I'm running the Crown bridged. It may be an issue of level settings on the amp...Crown states that the levels of right and left channels should (I think they even say "must") be set identically, but when I do this, I get hardly any signal at all. Uneven settings give me plenty of sound, but it's laced with the aforementioned fuzz. Is there something obvious that I am doing wrong here? Thanks!