Musical Fidelity NU-VISTA M3 VS KW500

Hi Guys...........Please help............
Currently, I've sold all of my equipments, but kept my lovely Hales T-5 speaker. I want a fresh start with intergrated amp, instead of seperate amp & preamp.
So I'm pretty much need your input.....PLEASE!!!!!
With my Hales T-5 speaker:
1 - The different between Nu-Vista M3 and KW500. These are both high end from Musical Fidelity.
2 - How about a comparision the above with other manufacture such as Mark Levinson ML 338, Jeff Rowland Concentra Mark 1 or any other suggestion. I've tried Krell 400xi and not really like it (It's just my taste, no doubt Krell is a top audio production). It's too power, agressive, grainy and textures. I prefer something in full range detail, easy, relax listening, but yet quick snap punch base. I need at least above 100 watts for the speaker. My previous set up is full Classe system.
I'm really appreciated for your help.........

Joseph