Amp suggestion for large 2-way Speakers

Are you looking for a bi-amped or just bi-wired solution?

Bi-amped

What dollar range do you consider "budget friendly"?  A lot of folks like small tube amps on horns, especially in the mids/highs.

What are you using for crossovers?

Well, I'm not opposed to buying "used"... and browsing eBay, I see brands like Crown, Yamaha, QSC, etc, offer pretty high powered options for well below $1000... as low as few hundred dollars.  I would consider that "budget friendly".

For crossover, I don't have anything yet.  I notice some of these newer amps have built-in crossover, and DSP, etc.  Is it better to invest in a separate, standalone unit?  

Is it better to invest in a separate, standalone unit?

By "invest" you mean better quality (best performance/value for the money), resale value, easier to upgrade, etc.? Usually the lower the price range, the more likely integrated will perform better.

I wanted to clarify above that you were interested in separate amps for your high and low transducers instead of using bi-wiring, where you would have a single amplifier per speaker pair but an active crossover separate from the one in the speaker placed after your amp. That would require two active crossovers, one for each speaker (complicated, makes me wonder why not go straight to Dirac or other room correction/DSP).

The back of speakers shows only two Speakon connections - one labeled "L/T", and other "R/B".  I assume "Left/Top" and "Right/Bottom"?  I don't see any removable jumpers... at least not from the exterior.

I was under the impression that 2 separate amps would be ideal, although not sure what frequency crossover point would be best for each amp / driver.