Capacitor

I also like ClarityCap. They have great holographic spacing and spatialization.  They get large in size as you move up uF. 

I believe @rauliruegas is sincere and has good intentions but he consistently has a ’know it all’ condescending manner toward other posters on this forum. I believe that he is convinced he has more

There are no good intentions or sincerity. There was no intent to help the PO.

Yes, many use Wima as they are decent and inexpensive. It’s a cost issue and manufacturers must hit a cost and price point. Also a form issue. They are perfectly sized and proportioned for circuit boards. Also many high end manufacturers use VH Audio and Duelund in THE most important circuit positions such as output and coupling. These are builders in the know and open minded enough to actually try boutique caps!

Also, if we go by your reasoning why do the same companies using Wima caps also use many other middle of the road parts that simply meet spec. That’s it….meet spec on paper. These parts don’t offer SOTA sound quality. Look at all the gear built using sand cast resistors, Alps $20 pots and on and on….We are unfortunately talking about gear selling for many thousands! They use these parts for cost reasons and sometimes because they are not open to learning and experimenting with boutique parts. Designers are not necessarily skilled or expert in parts selection based on sound quality because they don’t have the time or inclination to dig into it.  That simple. This topic of part sound quality and personality is it’s own area of study with much to be learned. It takes time and effort. Even great designers like Nelson Pass say they are not interested in delving into it. He does not. Just not his interest or curiosity. This is common.

Clarity is what I use in my speakers and I am extremely happy with them.  Open and neutral without adding sparkle that isn't there.

I've heard gear with Wima, including AR and it all goes to neutral and not particularly moving to me.

So clear why so few use boutique parts in audio equipment. Business models don't care or ask why, even most audiophiles unaware of sound quality changes boutique parts can evoke. So, profit margins ok, most consumers ok with status quo, what's not to like.
I've been around the diy audio boutique parts game for perhaps twenty years now, I'd estimate we're around 1% of audiophiles. We're like lone voices in the wilderness, perceived as iconoclasts looking for that last 1-2% of performance. Nothing could be further from the truth. I'd say the one thing I find in common amongst us is the seeking of truth of timbre, boutique parts are specifically designed for their sound signature. IME, performance increases of much greater than 1-2% are possible, in fact to be expected.  If you don't believe parts have sound signatures this is all nuts to you.

As time moves on, I observe increasing use of boutique parts in audio equipment, at least amongst the smaller manufacturers. These guys are subjectivist audiophile/engineers, a rare breed based on use of these parts. These are the people who take the time to voice their equipment in top flight systems, likely try many parts over time, pick what they consider best for their equipment. This is the kind of equipment I seek out these days, I'd actually prefer not having to diy mod equipment. My present dac uses all boutique/top flight parts, my custom designed 300b monoblocks were built with input from me and further diy mods, my 845SET and preamp are both filled with top flight parts which don't require any diy.

The Klipsch Cornwall thread here finds a few doing the exact same crossover mod with the Odam caps and a few other things. If Klipsch is paying attention and we're lucky we may someday see upgraded parts in stock Klipsch Heritage. In regard to manufacturers paying attention, some years ago I upgraded both my crossovers and BAM in Merlin VSM-MM with Duelund VSF caps. In my excitement I called Bobby at Merlin, very irritated that I had the nerve to change his perfect creation. Lo and behold, a few months later he comes out with upgraded VSM with Duelund VSF! I was ticked off with his reaction to me, but respectful in the sense he did care about best performance with his speakers. By the way, the upgrade from stock Hovland caps to Duelund was pretty stunning.