Should I recap my speakers? If so who can do it?

I would be willing to do the work in terms of building a new crossover board with the right parts based on your sonic goals.   I can walk you through removing the old and installing the new board. Contact me if interested. I do this as a business now that I am retired.  Very reasonable fees. Done many. 

Okay, can you give me a ballpark idea of the cost , labor and materials?

I just looked at this speaker. The board is loaded with cheap electrolytic caps and the film caps used were also not of high quality. With all those electrolytic caps a new board with 100%  film caps would be quite large and may not fit back into the space in the bottom of the speaker. The job can be pretty involved depending on your goals.  

What are are your goals sound quality wise? I assume the speakers are working properly right now? Any blown tweeters? 

To do a nice job without going overboard I suggest the following.

1) Replace the 6-20watt sandcast/concrete resistors on each board with Mills MRA 12. You will need 12 Mills per speaker as I would connect in parallel pair in order to hit the 20 watt rating. I would match the exact same values as the original board. Parts cost $100.

2) keep the current inductors - no cost

3) Replace all the cheap film and electrolytic caps with a nice film cap such as the Clarity CSA Line - 250 volt. Estimated cost for parts on both boards is $260 total. Capacitor parts cost only.

Total is some $400 shipped for parts only.

You can contact me if interested. If not, these notes should prove helpful for your next steps should you decide to do it yourself. Looks easy to remove the board. Carefully mark all wires going into the board for resoldering later. Take your time and be very detailed in notes and markings. Will all the Clarity CSA Caps fit? Depends on the total space inside the bottom of your speaker. Need to know how much height you have. If as much as 3-4 inches, I would say yes.

AudioCap Theta. That’s all you really need to know.