I have Infinity kappa 60.5cs component system in the front (4 ohm, 2-90 recommended rms wattage) and Infinity kappa 692.5I 6x9's in the back (4 ohm, 2-110 recommended rms wattage). They are currently run by a 27 rms alpine 9813 head unit.
WHAT ARE SOME GOOD AMPS THAT WOULD UPGRADE MY SYSTEM?