Do u guys think it is worth it to throw a RF 200.4 or 300s on my door speakers. I'm runnin of my HU right now and they just sound too flat i want some more mid bass and my highs could be a little brighter. I'm already runnin a 500.2, would i need a cap if i added one of those amps above. I'd like to stick w/ RF amps to keep my trunk lookin clean. Anybody know where i can get one of those at a good price ....austin?