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David,
Reading above you went for a nice dinner and got served an appetizer and the restaurant stopped serving, chef went home, servers started cleaning up and turned off the open sign. Missed the real Entree and the Desert. :)
Heads up on the "we’ll only tell you about the... "what we have in stock sales person". Of course they could only show you what they had, but did they make much reference to what they could order too, a clue.
The QS Linestage paired with QS Mid Monos or Mono 60s was the ticket for 86-92db speakers. Mono 120s for harder to drive speakers. The little QS Integrated is nice for lower power more efficient speakers at 20wpc. Unfair comparison other than to learn what a musical amp can sound like. I run the QS Mono 120s for my 93db speakers and it’s a great match. Your Salk Wow1s are 84db, right? (it always starts with the speakers...).
This is where QS Monos start to shine to compete with good SS amps with regard to dynamics, driver control. The Rogue recommendation is what they had in stock, different sound, in your budget. Might be your ticket for the $ excluding comparison to QS Linestage + Mid Monos (you did not hear it yet :), unfair to compare to the the little musical integrated (amazing btw), only when paired with the right efficiency speakers. Same situation.
I find QS Monos are rarely in stock at dealers, usually sold before they get there. Gotta ask the dealer to order/hold them in all fairness. Back to square-1. :) Once you hear a really nice (power equivalent) tube amp to speaker match, you’ll gain much better insight. Patience and persistence can pay off in this instance until you get a chance to really "hear" it. :)