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.
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.