Best Class A Amp under $2,000 used?

@jmcgrogan2
I never thought that was possible. Thanks for the info!

Here's a pair of Aleph 2 monoblocks for $1,100: https://www.audiogon.com/listings/solid-state-aleph-2-monoblocks-aleph-2-monoblock-amplifiers-2017-04-26-amplifiers-33460-lake-worth-fl--2

100 Watts Class A

Your Dali's are 88 dB so 100 W would be more than enough to drive them.

I'm pretty sure that there is no amp out there that runs Class A with 200 Wpc into 8 ohms as the amp would problably weigh over 200 pounds. For example, the old Classe CA-400  weighed 120 lbs and did 400 Wpc into 8 ohms & 800 Wpc into a 4 ohm load but it's Class A was the first 80 watts then it went into Class AB. The Classe CA-301  did 300 & 600 Wpc into 8 and 4 ohms but it's Class A was the first 60 watts before going into Class AB.  I know this because I owned both amps. I don't think any manufacturer would bother to make a amp with full Class A up to 200 watts or higher. If you want a great Class A amp, solid state, it's hard to beat Pass Labs.

I would be fine with an amp that went into a/b mode after so many watts.  I'm assuming that it makes less difference after a certain volume level and would drive down cost.  Is that correct on both counts? What about specific models in the used 3 k range?  Any recommendations with the updated criteria? 

My Krell which is a class a/b amp runs class a for 50w and my Vandersteens are 86db/1 w. Not being a headbanger with the volume control and with the size of my room I don't believe the amp has ever run above that point. I like the Pass Aleph 5 class a at 60w and those are below $2000 and should work great with your Dalis.