I would agree with Mitch's assessment...I also own the VK500 and partner it with a Bat tubed CDP and pre-amp...I like firm, solid deep bass and always felt an SS amp did that end best.
BAT Solid State Amps?
BAT tube amps have been discussed extensively here on Audiogon and in the audio press but I've seen very little discussion of their solid state products such as the VK250. In fact I know nothing about them.