Warm integrated ss amp around 650?


I have a pair of Von Schweikert vr2100 within an HT system, that has a decent bypass to 2ch. (the vr2100 are the mains). I need a 2ch amp. for under $650 that is warm, laid back, smooth... prefer to try solid state integrated. Any suggestions (considering the used market of Audiogon.)?
anchorr
Personally I don't find the Audio Refinement complete to be all that warm. I thought it was a little on the "thin" side too paired up with JM Lab Electra 926 and Tannoy D700. However, for your price range, it may be the best choice. The CAP-100 is nicer IMO but it was on Soliloquys (if that makes the difference) and may be harder to find on the used market. It will depend on your ears and speakers. The Integre may be a better match. Warm and smooth are what I look for too. Good luck! Arthur