Can I bi-amp my speakers with two different amps?

Hi,
+on same amps' gain and sound character. Also check that gain of your pre added to amps one is enough for your speakers efficiency. With total gain of approx 40db+ i believe you are fine. I never tried biamping with different amps, in the past i tried it with no great results (overkill) on a B&W 803 with B&W MPA1 (4) and Denon Poa6600 (4). Pre was an ARC SP-9MKII.

One of the best dynamic speakers I heard was my friends bi-amped pair of Monitor Audio Platinum PL300 he bought over from the UK
They had a pair Pass Labs XA60 on the mids and highs, as they had an easy >4ohms bass load, an Ice Power 1200as Class-D to do the bass.

Cheers George

I had a friend that did the very same thing with a 332 and 335 Levinson amps. The 332 and 335 are a little closer in power than what you are doing. 200 watts and 250 watts. He had the 335 on the base and the 332 on the mids and highs. It did sound good. Both where on their own 20 amp dedicated power line. The speakers where B@W Matrix 800  speakers.
Sad to say he end up divorced and the wife took the 332 amp in her part of the settlement.

Hi Jokomo.

I have a pair of Cabasse speakers (from France), which have the mids/highs in one unit and the lows in a separate cabinet -- joined by an external crossover (with easy adjustments).  I'm driving the mid-highs with two Cary 805C monoblocks, and the lows with a VAC Renaissance 70/70 (two monoblocks on one chassis).  Pre-amp is a CJ ART.  Can't tell you how amazing ANY music (from any connected source) sounds.  And I listen to the system in my home office for hours on end, every day and night.  No fatigue ever.  Just can't wait to hear what pops up next on the playlist.

So the quick answer to your question is yes it can definitely be done using the connections described by others.  If you like the sound of your amps and speakers, you're going to be very happy.

Cheers.

I am also curious to try biamping  a pair of quality, 250 wpc+,  class D Monoblocks bi-wired into the Bass terminals of my older Tannoy FSMs.
I would use my Pass Labs XA25 for the upper half. 
Any product suggestions for an option under say $2,000?