What Class A is better? SUGDEN FPA-4 or PASS LABS XA-25


I`d like experiences of the gurus.

Thanks
sacresta
I had an all Pass Labs system for 10 years and loved it. I have never heard a product by Sugden, however, by just observing the interior construction of both units, the Pass by mile.
I am not a guru.

https://2.bp.blogspot.com/-gXjwOj25oME/WdaEY45K0uI/AAAAAAACVwY/G6jq0ALxD2MVJlDzTUH3ZU1TghgwtszuACK4BGAYYCw/s640/22196086_1046558578813198_9049732347851855016_n.jpg
I have no dog in this fight but that picture of the Sugden amp looked weird to me, no capacitors that I could see. Did some googling and this review:

http://www.hi-fi.com.pl/testy/ko%C5%84c%C3%B3wki-mocy/3465-sugden-masterclass-spa-4

Though in, I think, Russian has what looks like a more accurate internal shot of the SPA-4.
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