PMC Speakers

@rosami  From your post, I assumed that you were referring to what PMC is currently calling their SE series, where the designs are closer cousins to their professional offerings.  On A'gon you're more likely find owners of Fact, TwentyFive, or Twenty series models.

Unless you happen to live in one of the few cities with a PMC dealer, e.g. Seattle, it's a tricky business.

@rosami What are you driving the Thiels with?  I endorse Milpai's advice.  BTW, I went from B&W to Thiels to ProAc, then to PMC.

Spendors are the other obvious one for you to listen to, but again there's limited availability.  Try if you can to hear the Classic series, ideally the Classic 100.  It's slightly more lively than the Harbeth, but cut from similar cloth.

It all depends on your mix of priorities.  Imaging and soundstaging are important to me.  I also happen to like speakers that are a little more laid back, in the sense that the soundstage starts at or behind the plane of the drivers and extends back from there a good way.  Timbral accuracy obviously important, though I err slightly to the warm/forgiving side--many modern speakers I find unforgiving.  Then there's bass extension.  Ideally I want a little more than the Twenty.24's give me--hence my regret re. the '26's.

I've heard this about first-orders before, but I believe it's part of an overall brew/cocktail of ingredients, so one can't just take that one feature and use it as a decisive or absolute criterion to separate the sheep from the goats (or the "good" speakers from the others).