biamping Usher BE-20's


I was thinking of biamping my Usher BE-20's. My Audio Research 210's would drive the mids/tweets and maybe one of the class D amps for the bass. I'm thinking Wired4sound, Bel Canto 1000's or??? The 210's are rated at 27db gain so I figure if I can get a bass amp/s with the same gain it should work good? I can always get the Endler attenuators if needed for the bass amps. Any suggestions/opinions about how this might work and sound? I'm a little concerned about the 540hz bass/mid xover point on the 20's - 540 seems kinda high to me.
thanks!
128x128mantis007
Researched Wyred 4 sound 1000 with Emerald Physics compression drivers.

Good amp.
Lapierre, JRDG 201 are based on 500ASP modules and not on 1000ASP modules. . . they have half the power of the 501s. . . I would not use them to drive bass region of large speakers. Guido
The be-20s are probably the only speakers I’ve owned that I never considered bi amping. I had a pair of salons and wished for a refined tweeter so I bought the salon 2’s and missed the dynamics of the original because the 2’s were sucking my amp dry. I bought the be-20’s and got the best of both. There’s an after market xover that probably would make a bigger difference than a second amp. The floor spikes with these speakers make a notable difference.