Amp/preamp combo for B&W Matrix 801's


I'm currently looking for some thoughts on amp/ preamp combos to use for my B&W Matrix 801's. I can't seem to shake these speakers and so would like to match them with best options without breaking the bank
wizardofwaz23
I have the 801s VII and use Krell FPB 250 monoblocks and Krell LRCHR preamp with the Krell crossover units with outstanding sound. The croossovers realy make a big difference in sound.
i use them biamped.eagle 2 for the bottom and 2 mc 275 commemorative bridged for the top.
also use a maughan box and happy as a clam.
they are hard to drive with a tube amp running full range although big arc amps do the job decently well.
bass is much tighter with ss amp on the bottom however.