Pass X-250 and Tube Preamp


I am thinking about a Pass X-250. I noticed it has a very low input impedance. How do you think it would match with a tube preamp?
ehoehn
I'm running a McCormack DNA-500 (10kohm input Z) with a Dehavilland UltraVerve (600 ohm output Z), and the combination is terrific.

The impedances you are dealing with are probably in the same ballpark. If you stick to the 10 to 1 rule, i.e. the amp'z input Z should be at or greater than 10x the output Z of the preamp, you should be ok.
You can increase your odds of success* by keeping the interconnect cable short; 2m or less would be good. The lower the output impedance -- closer to 100 ohm than 500 ohm -- the better your chances are.

* avoiding loss of dynamics, truncation of frequency extremes, and loss of immediacy.

Best of luck,
Joe
I've never liked my speakers (thiel 2.3) with tubes. I currently loving and enjoying my pass labs x-350 and x-2 the synergy and musicality is awesome.

dave