Are future improvements in Amp/PreAmps slowing to a crawl?

don_c5509-04-2017 5:58pm

decooney Details Discussions Posts This discussion Message User 2,326 posts 09-11-2017 at 05:31am Copy Comment URL Report Comment Edit Delete Now days it seems anything gets copied or is a copy of something else. https://www.aliexpress.com/item/Big-Aluminum-Chassis-PASS-Class-A-Power-Amplifier-Enclosure-DIY-Case...