Zound
///Member
How have you hooked up your speakers? My 330 came with the 10 speaker hifi option, but not the Harmon Kardon edition. The woofers in the front and rear of my car were all 2ohm and each set of speakers is equalised and powered by the factory Alpine amp fed by a balanced differential input from the head unit. I presume you've wired it such that the splits are being powered off the targa 4ch amp and the sub is receiving a bridged signal but how are you powering the rear deck speakers? Surely they are 4 ohm and will therefore not receive enough power from the stock amp. But since you have the in dash dvd player it'll most likely have a built in 4x22w RMS amp and that would be more appropriate to power the rear deck...