Watt Puppy 7 with Pass X250.5?

Used W/P 7s are an excellent value and will perform very well with a Pass 250.5. I am presuming that you do not have easy access to hearing the speakers or you would have done so already. If you have to go on brand reputation you cannot go wrong with Wilson. That said I think it is highly probable that you will like the combination, especially if you follow Wilson's setup procedures listed in the manual. And if you don't you can resell them easily because demand is high.

Audiooracle, I saw recently that Joe D'Appolito, knowingly called "Paul DiAppolito" by that other unbiased sage of Usher speaker technology Aintitgr8, changed the tweeter and midrange of his speakers to beryllium and has been driving his Ferrari reconfigured from carbon fiber, aluminum and titanium to wood, mdf, lead and epoxy, all the way to the last century.

As with you, just trying to be informative.

No axe to grind here, obviously.