Thanks for all the replies and suggestions. I should definitely look at and feel the surrounds of the speakers, in order to check their condition. I was not planning on using them soon, if they are in good working condition, or repairable, but I should tend to them anyway soon, before they do deteriorate, if they haven't already. They are heavy and fairly big floor standing speakers. A two person job to move them for sure.
Regarding the electronics, I failed to mention that the whole time they were in storage, they were in their orignal, complete packaging. The McCormack Micro Line Drive was in it's plastic bag, foam end padding, and cardboard box. The McCormack DNA 0.5 Amp I don't think was in a plastic bag, maybe, maybe not, but did have it's end foam padding, and inside it's original cardboard box.
I posted a query in the forum at audiogon.com about why the amp was staying in protection circuit mode - that's how I knew something was wrong, and I got a reply from Steve McCormack - the person who owned the company that made the amp. He said:
03-31-13: Stevemcx
Hello Harold,
In all likelihood you have blown one or more of your 4 internal power supply (rail) fuses. These are 6A or 6.3A fast-blow types (5 x 20mm size) that you can hopefully find locally. Replace the blown fuses and you should be back in business.
This probably happened because the amp has not been used in a long time. Now that you are using it again it shouldn't be a problem.
Best regards,
Steve McCormack
SMc Audio
So apparently the reason the internal power supply rail fuse blew, was just because it had not been used in such a long time, and should be fine after it is replaced (I'll replace all of them).