Best Amp for 2000$ or lower. New or Used

Plinius 100 MKIII

A Belles 350a. Little known but man will it play music. 250/ch See the review at www.Soundstage.Com

As usual, CarverPro ZR1600. Invest the other $1200 in good discs.

I'm using Canton Ergo 81 speakers. I was using a BK EX 442 amp. I'm looking at the NAD S200 amp. This amp sounded sweet. Its built nicely, or the Sunfire amp.

Doug,
What are the details on this speaker, effiency, etc. I don't see it on Canton's site. From what I can see of the other Ergos, they all seem to need a decent amount of power to drive. Guessing the ss is the way to go. All the recommendations are ss, anyway.
FWIW, I used to own a Sunfire, previously an older NAD. The Sunfire was the stronger performer,but should be for the price difference.
Personally, I'd recommend a Pass Labs Aleph series amp or if 60w of high current tube power is enough, then a BAT-VK60. Cheers, Spencer