Reading the website of the guy who sells the amps, it's clear he has some ego issues: https://www.audiodesign.co.uk/index.html https://www.audiodesign.co.uk/in

Reading the website of the guy who sells the amps, it's clear he has some ego issues: https://www.audiodesign.co.uk/index.html https://www.audiodesign.co.uk/index.html I'm guessing he expected to see Mark fail to repair it, and instead talk about how amazing and advanced his product is.