LOL $311 just to install 1 amp... Yes u can bridge ur channels but that amp is not 2ohm stable when bridged.Its a RF P400.4, its bridgeable, but Im a newb, hence why I paid 311 for someone to install this, but the rears only getting 50w rms makes me sad in pants //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif