This amp only works like this
Left Speaker + -> Amp left speaker +, and ground
Right Speaker + -> Amp right speaker +, and ground
Left Speaker - -> Amp left speaker -
Right Speaker - -> Amp right speaker -

Tried it on several different speakers (speakers outside of cars etc..) so I don't think it's the speakers. Must just be a "broken" amp I just thought this might be some alternative way to hook up some amps.