Got a used t400-2 have 4 alpine type r 6x8 4ohm. So I ran each set @ 2 ohm to each channel for 125 watts per 6x8. Left Chanel good, as soon as I hook up right channel it goes into protection. I even tried one single speaker in right channel and same thing. So I hooked up my old soundstream back up and everything was good . Power good, ground good, rca good. What's up with this amp??? Please help