Tony L
Administrator
Ditton 15s are an easy drive being of a fair size and efficiency, I'm sure any of the amps you mention would be a decent match. Go for quality over power as they don't need much grunt. They'd be happy with tubes if that was a direction that appealed. Consider restored vintage too, e.g. A&R A60, Quad 33/303, Sugden A21 or any number of Japanese amps or receivers of the period as this is the kit they'd have been partnered with.