don't skimp on speakers!!! speakers make the most difference in sound quality of a system...obviously electronics are important and have different sounds, but the quality of the transducers of the signal is your biggest concern (IMO). This being said, get a processor or receiver and use it as a pre-pro, and hook it up to some nice external amps (Outlaw, as above, is a great solution...although more power for less $$$ is easy if you shop around). Those 4-ohm speakers will sound MUCH better with proper power, and your system will thank you in the long term because of how you'll be spreading out the load. Good luck...