The Emotiva amps are an excellent choice if your budget is limited. It’s my opinion that you’d have to spend significantly more to get something better. I’m running XPR-1 amps for the main channels and it’s hard to bet something that has 1000W, 240,000uf power supply, 36 output transistors for that price. I’ve looked and the best I can come up with is a Bryston 28BSST, but at 4-6 times the price and the fact that I don’t really like the Bryston signature, it’s just not worth it to me. At this point, I have over $8k in amps.
I think you’re already in the range where you will get something better than Emotiva anyways. That D’Agostino is interesting. Definitely a beast:
http://www.absolutesounds.com/pdf/main/press/HFN_0216_DA_ClStereo_4web.pdf
If you’re already looking in this price range, Reno Hi Fi has a pair of used (demo) X-260.8 monoblocks for $10k. If I was looking in this price range, I might be leaning towards these Pass monoblocks. Monoblocks are -generally- fully balanced/differential whereas stereo amps are -generally- single ended.. The monoblocks will have completely separate power supplies which will probably help drastically with imaging (D’Agostino has separate power supplies, but with a shared transformer). Also, having two monoblocks there in your room can look more impressive than a single stereo amp (though the Classic Stereo is definitely huge -- but there is some empty space inside the amp case). This is completely an asthetic reason, though. All that with the penchant that Pass has incredible bass slam and overall excellent sound quality would tend to make me choose the Pass monoblocks. Please note that I’m making an educated guess based on what I’m reading on these amps and it could very well be that the D’Agostino is the superior sounding amplifier.