for price, look in a bmw, and quality sound....clarion proaudio DXZ745mp. it has 24 bit DAC's, 4 volt preouts, etc. OR a nakamichi cd400, both about the same cost and same features. the Nak is more elagant imo, the clarion is more ricer looking and flashy.
for those speakrs, get a nakamichi pa1004. 50x4 @ 4 ohms. perfect for those speakers. GREAT amp, especially for the money. or look at jbl for quality and price, a little cheaper.