I may have missed it but the OP didn't seem to offer up what speakers he'd be pairing an amp with. There's no point in suggesting an amp without knowing if it might clash with the existing speakers it'd be driving.
For instance, the NAD C375BEE I had sounded very plain with Totem Acoustic Rainmakers. The NAD retailed for $1500 and was 150 WPC. It looks like most of the amps on the OP's list are under 100 WPC, and therefore would run out of steam if driving the Maggie LSR's that have been mentioned.
For up to a $2000 budget, I'd suggest getting adventurous and getting a Schiit Freya+preamp, it really is an industry disrupter. Their Vidar amp is superior to anything under $1500 that I threw at it, but again, it would depend on the speakers. With high efficiency speakers, the Schiit Aegir is on Stereophile's A list.
For instance, the NAD C375BEE I had sounded very plain with Totem Acoustic Rainmakers. The NAD retailed for $1500 and was 150 WPC. It looks like most of the amps on the OP's list are under 100 WPC, and therefore would run out of steam if driving the Maggie LSR's that have been mentioned.
For up to a $2000 budget, I'd suggest getting adventurous and getting a Schiit Freya+preamp, it really is an industry disrupter. Their Vidar amp is superior to anything under $1500 that I threw at it, but again, it would depend on the speakers. With high efficiency speakers, the Schiit Aegir is on Stereophile's A list.