Best used SS 100 - 150wpc for a grand or less?

There are several amps that meet your criteria, such as those made by Adcom, Rotel, and Parasound -- but the one I'd seriously consider is the Bryston 3B-ST (150 wpc). And if you can pony up only a couple of hundred extra dollars, you might be able to get the 4B-ST (250-300 wpc). Both of these amps are very clean, and work very well with Vandy speakers.

I would bet that a McCormack DNA 1, DNA 1 Deluxe would sound great in your system. Plenty of power for the Vandies. Its a very good SS amp under $1k.

I have a Threshold S/300 stasis driving my 4ohm Thiels.
150 wpc 8ohm 300 wpc 4ohm
This amp is in your price range.
It drives the Thiels with ease.

Aragon 8008ST, Classe CA-150, and McCormack DNA-1(or DNA-1 deluxe), come quickly to mind, as well as the above mentioned Bryston's. I've heard several systems sound good with the McCormack/Vandersteen combination. Good luck and happy hunting.

I would agree with the McCormack suggestions, I have used Vandersteen 2ce's with DNA 0.5 Deluxe amps with great success. Vandersteen's were often paired with McCormack amps at shows too.

Musical Design D-150. Better than NAD, Adcom, Rotel, lower power Classe, etc. High current output able to drive almost any speaker. Infinitely upgradable. You can find them used for less than a grand.

Try McIntosh MC7100 - I had used it before I switched to tubes. I thought it was much more musical than a lot of other more powerfull amps.

McCormack or Bryston for Vandersteen

I currently have Vandersteen 2CE sigs. I had the ARC SP9 MK2 in my system for about one month. I went from B&K 4420 to a McCormack DNA-1. The McCormack seems to mate very well with the Vandersteens. Don't know what tubes you are using but, I purchased a pair of Amperex USN-CEPs and made a huge difference. Really opened up the pre. I liked the set up but, tried a TAD-150 from bizzy bee audio and had to switch. Anyway the McCormack is a great choice for around $800 and it can be upgraded by Steve McCormack to world class level. That is why I bought it.... If you are interested in the Amperex tubes, let me know.....

Eagleman

I'll umpteenth the McCormack recommendation, and from experience. Great synergy with Vandys.

You could buy a new Odyssey Stratos for around 1 grand

if you can get your hand on an older bedini amp..they sound great with vandersteen..my dad gave me one and loving it.i think the model like ba-803..they are big and heavy though..

McCormack DNA-1. Or check out used C-J MF series amps--a lot of amp for the $$.....