- Hi Dean, I'm a Dean too - 🙂 - Sorry no one responded to your question , yes the speakers can still be in good shape, you would need to hook them up and play them for a while to make sure the speaker drivers are all working okay, sometimes the foam or rubber surround at the edges of the speaker drivers can deteriorate but they may be fine too, (and they can be fixed if needed). One thing to keep in mind is that after 45 years to get them back to their original sound quality it would be a really good idea to replace the capacitors and maybe even the resistors in the crossover. It is a fairly simple job - just a little soldering, the parts shouldn't be very expensive and you can buy the parts from several places - ( like Parts Express ) - Those parts weren't really meant to last this long- lol... If you ask for help either here or over on Audiokarma , some of the guys should respond and can help you choose the right parts and even give some advice on the best way to proceed if you would like some assistance.
- The basics are that you definitely want to change out out the old capacitors which are very likely to be out of spec for new ones, and for the Capacitors you would want Polypropylene Caps or better... One thing to keep in mind is that the Capacitors may take a little while to burn in before they will sound at their best so don't judge the sound to harshly right away, give them a few weeks to get to their best. And for the resistors you can either use a Multimeter to check the old ceramic resistors to see if they are still in spec or maybe the best coarse of action would be to just buy some new ones , and if I were going to buy new ones I would choose Non-inductive wire wound style resistors , that will be an upgrade from the ceramic style resistors and most likely sound better as well.
Best regards, Dean
