Amps: Tru Technology, McIntosh, Zapco, Arc, DLS, Celestra, Sinfoni, Audison.
I personally enjoy TRU amps. Build quality, sound signature, and flexibility make them incredible pieces of equipment.
Subs: DynAudio Esotar 1200, Morel Ultimo, DLS Iridium/Nobelium, Rainbow Vanadium.
I own the Esotar, it's spectacular if you enjoy absolutely no coloration to your music. DLS Iridium subs are also excellent. I'm currently testing some JBL GTI's, which are held in high regard, and I have heard the new Stereo Integrity Mag V4 is supposed to be good.
After owning and listening to the Critical Mass UL12, I was not very impressed. Loud, yes. Tonality, no.