When I first got this amp and heard how it sound the sound Quality was unbeliveable and the clearness it sound it took my components to a ho other level of loudness and sound quality.
i got this amp in 2-10-2006 and it sounds great but it will burn up if you dont give room to breath. so if you have F150 superbcab do not put it behind the seat! other than that it sounded great!
This amp is a powerhouse and an audiofile's dream. A S/N of 110, a damping factor over 500 and it doubles it's wattage at 2 ohms. It reveals much more in my music, and is very flexible.
I have a PPI 1000.4 Amp which runs 2 pair Infinity Perfect Kappa's 6 1/2" component speakers and thats all I use this amp for. I have a 1200 watt Heritage amp for my subs. The PPI and Perfect Kappas has totally Amazed anyone that has heard it. Even the professional installers at Tweeters and the Local privately owned Car Stereo Shop Owners are very impressed The PPI 600.4 will be the same quality but not quite as much power which means nothing because you cant turn mine all the way up. PS If you use Perfect Kappa Speakers you have to use the Cross Overs to clean it up or you will BLOW your speakers
