I've been trying to find amps for my new install in my car. I'm looking for a 4 channel to power the mid basses and a two channel for the tweets. Right now I'm looking the PowerBass ASA 600.4x and PowerBass ASA 400.2x for that. I can get them from sonicelectronix for about 250 total with shipping. They both have good reviews on the site and look like nice amps but I can't find any mention on forums. Does anyone know anything about them or any amps in that price range that'd work better? I need to pull the trigger by friday if I want to get free shipping on them.