https://www.gofundme.com/f/studio-amps-go-down-go-boom-boom?utm_source=customer&utm_medium=copy_link&utm_campaign=p_cf+share-flow-1
I no longer think it’s reasonable to repair these amps anymore. I have decided to try to replace them with newer cheaper studio amps.
I will run a campaign for £1500 in the hope I can replace all 3 for around the cost of 1 or 2 repairs but the replacement will have a warranty.