I had a Xindak 6950 that was replaced with BAT’s VK-300x and, even though the BAT was a little more refined and had much better bass control, I still missed the Xindak timbre. Voices were more palpable and it was warmer overall, the BAT was darker and leaner. I have since upgraded to BAT separates, and now I’m in Zanden heaven, but I’d certainly recommend the 6950 elder brother, the Xindak A600. You may find it used within your budget and it’s a mammoth. Built like a tank with great components; an absolute steal. I’ve heard it driving Thiels 3.7 and it was really, really good. It retained the 6950’s warmth and presence that I liked but added a lot more grip, refinement and control. Don’t let the "made in china" badge fool you: those are great components and a great bang for the buck, heavily built and really sweet sounding (not in a bad, exaggerated or slow way, simply very emotional). Hope this helps.
Luiz
Luiz