Relivin' the good old days-
Just got done rebuilding my Bose 901s (series III) that I purchased back in 1975. Foam failed (as they all do) about 15 years ago and they have been in the attic since. The friend who helped me recommended the Crown when I got them back into service and he was right...the speakers just sing with this much power for the bottom end. Couldn't be happier!