You'll play hell trying to find american made capacitors in any of those amplifiers pictured. Even when it comes to restoring a old hi-fi tube amp, most the replacement electrolytic capacitors are sourced and made overseas. Even the modern "Sprague Atoms" are made either in China or Japan. Except the CE Manufacturing aluminum multisectional electrolytic capacitors......I think they are made in the US, in Califiornia or some such. Most the high quality boutique Electrolytic capacitors are made in Japan. Such as the Nichicon Muse series, Elna Cerafines, Rubycon Black Gates........ I'm sure there is quality made American electrolytic capacitors out there, but I really doubt they will be in common consumer grade car electronics. I also wouldn't doubt all those amplifiers pictured are made in the same South Korean plant. The plant probably does quality control, and the dealer who pawns them off in the states probably does testing and more quality assurance before they are sold. And with a whole pallet of amps, I'm sure they have to go through, test, and ween out some of the bunk ones.