I'm a JA dealer, and with them you have a lot of flexibility in what you can use. They sound really good with either solid state or tubes.
Do you prefer to go new or used?
If new, I would look for perhaps either a Rega Brio-R or a Marantz PM 6005 or maybe 8005.
If used, it would be hard to beat a Rogue Sphinx. You get both a bit of both tubes and d class amplification.