Modwright LS/PS 36.5 or Pass Labs XP-20?

I hope you picked the Pass. A contrarian, I feel solid state phono and line amplification upstream from tube mono blocks preferably in balanced mode brings out the best sound, the quietest noise levels. I know nothing about Modwright but Pass is a real company. Their service technicians rotate as designers so you have great support. 

From what I have read on their web site Rogue is a solid, venerable, engineering company with good resumes, good product, a good balance sheet, and offer very good values. I have a colleague who recommends their amps over the high, high priced tube amps (not the OTLs) to drive various electrostats with good results. I merely stated my preference in putting solid state gear by (Pass) in the front of the chain and using valve amplification, such as Rogue, if that is your taste. If you like Rogue preamps that is your good taste. I shall look into Modwright when time permits.  Thanks for the tip, adg101, and I'm glad you got a kick out of my remarks.  Remember Harvey Rosenberg?