Guys one thing I noticed is the PPI amps are not fan cooled. Could this be a bad thing?
For instance this amp....
Precision Power PPI P1000.1 (p10001) Monoblock Phantom Car Amplifier
What about this amp guys? Good quality and performance?
Soundstream TN1.1200D Class D Amplifiers at Onlinecarstereo.com
Lastly do amps produce sound quality and what not?
DIYMA (51 pages last I checked). What you need to know about them is that they're very small, efficient (run cool), and do their rated power. In fact, it is mentioned on that discussion by Grizz Archer (then PPI insider) that P1000.1 was underrated by an accident and they didn't bother changing the rating because literature was already printed. The real rating should be close to 600/1000/1200watts at 4/2/1ohms. I used to power my subwoofer with two bridged channels of PPI P900.4, and it never got hot even during Texas's hottest months. Later I swapped my P900.4 for a P1000.1 with another forum member, since I realized that I didn't need the other two channels. Now I power a 4ohm 350watt Infinity Kappa subwoofer with a 600watt mono block, LOL.
Actually, the Soundstream TN amplifiers are the same amplifier inside as the PPI Phantom amplifiers (it's the same company that makes them). If you like black color, buy PPI. If you like white case, buy Soundstream.