I plan on getting some Morel Tempo 6 component speakers in my 350z. Going to run at 4 ohms either Sundown SAX 125.2 or the Arc Audio KS 300.2. Will i hear a lot of difference between these 2? Or should I just go with the cheaper amp? The Sundown does 125 x 2 and the Arc Audio does 180 x 2. Thanks!