Thanks for the input.
The ref 250's are incredible. Best amps I have ever owned. I love my ref 2se phono as well. I currently have a Rowland Synergy IIi which is a great preamp - but I'm wanting synergy and all tubes so its the last hurdle.
Interestingly, in my system, I could not appreciate any difference in timing or sound quality from using the Speakon connection compared to the preamp connection with single ended interconnects.
Thanks again for your info. This is a great community and always very helpful. I'll keep notes and continue to share with you as I travel down the ref 5SE road with the REL. I can't imagine life without my REL either!

