@jtrosky has experience with the RF mini power amps I believe and he even won a competition with them if I remember correctly.
I personally love the JL Vxi600/xi5 and Vxi800/8i DSP amplifiers. Very small in size and best of all they eliminate tons of wiring that is normally required with separate DSP and amplifiers. The SQ is top notch too and with the Bluetooth module I can tune wirelessly with my iPad.
The XD line is similar only even smaller and affordable too.