New to this forum so hello everyone. I have lurked here once in a while but never had anything to add or ask so never registered. My question is I bought a low budget 4000w lanzar dct 425 4 channel amp..I bought four channels cause I figured I'd just bridge them and I would have plenty of channels to expand with if I ever needed.. The amp is listed to be bass boostable. But the problem is, only 1 set of channels has bass boost adjustment? How the hell would one bridge these for use with car stereo and want to transmit differently tuned signals? I'm sure there are exceptions. But 9 times out of 10 these will be mounted and powering subwoofers...my setup is 2 subs both with +\- speaker wire leads. I don't know what to do? Send this back and pray they'd just exchange it for a 2 channel? Or is there a way around this?