Yes, I like the SymbiLink and all, but Zapco's are real hardcore bulletproof amps. They send a super clean signal, even in unbalanced, to your speakers, giving a cleaner ound and longer life to the speakers. Remeber, DISTORTION will blow a speaker, not RMS power!!! Reference line from Zapco is the best value, quality/dollarwise. There are about 3 or 4 other comanies out there just as good, I just like Zaps outstanding tech support and those SymbiLink connections. Otherwise Arc, Truamps, etc. are up there.