PPI art series does have a 4 channel and yes, it is the A404. You could use 2 2channel amps "that's what I'm using now". I have 2 PPI A300's. Here's a link to 2 really nice ones on ebay. Get these and sit back and enjoy


http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3088389887&category=18796


http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3088390516&category=18796

Vinny 2000 T-RED CSVT MODS: 18" REV model 2 ST200 struts/Roush springs CTA intake Pipe/K&N Filter Dtec Heatshield Optimized TB True Duals w/ magnaflow mufflers/resonators