Biamping 101

Depends on whether you want to vertically or horizontally bi-amp. W.2 identical amps, you could do either, w/o an external x-over, IF your speakers are set up for bi-wires (I think Thiels are not). For horizontal, one amp drives the L & R woofers; the other the mid/tweets. In vertical bi-amping, one amp drives left side (one channel for woofs, one for mid/tweets), the other the right side. If you have two sets of outputs from your pre-amp, you can do it pretty easy, just run both lefts (or rights) to one amp for vertical, one left and one right to each amp for horizontal bi-amping. You will need Y cables for horizontal bi-aamping; for vertical you can use Y cables, or parallel the input jacks internally. However, you may want to consider going up the food chain and getting one better quality amp at the place where you are.

Clueless as usual provides many clues. Link is excellent, but of course only applies to horizontal bi-amping. Vertical bi-amping does not require an external crossover AND reduces crosstalk. However, Macro gives good advice. Bi-amping is probably something you should consider down the road. If you go with the Thiels, you might want to seriously consider upgrading electronics, as they can be ruthlessly revealing. Another good choice for an integrated at a lower pricepoint than Plinius would be AudioRefinement Complete (lower price badge from Yba). I've got one that puts out a very robust 50 wpc and it is very nice sounding and pretty smooth, which would work well with the Thiels.