well i have a set of 6.5 alpines for the front (50RMS) and will be running some set of 6x9's running around 70-90RMS, now excuse my ignorance but for a brand new amps its quite expensive but ive found a soundstream lil wonder 2-4.480 for $170 and im pretty good this is a good deal but is it too much power? as it will be putting out 65x4 rms @ 4ohms...im pretty clueless