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barryjo

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  1. Given the riskiness of the restoration and the fact that I do not know what I am doing, I will probably sell them. I think this might be a better idea.
  2. What do you, as a group, think about me buying these supposedly OEM tweeters and mid range? tweeter and Mid range Just wondering.
  3. After a bit of testing I find that I have one tweeter and one mid range that does not work. What would one of you experts advise me to purchase as replacements. I tend to think I should replace both tweeters and both mid range speakers to make them the same. Searching the web I see one site that advertises OEM tweeters for about $80 and mid range for about $120. I would like to find something a bit less expensive but I want them to work. Surely some of you have found replacements that are reasonable.
  4. I think this is a good idea. I guess I will have to remove the woofers and stuffing to get to the caps and pots, yes?
  5. Applying a signal to the normal terminals gives no sound. It might be that the capacitors are open. If I apply a small signal directly to the tweeters I can tell if they are working . I will be careful
  6. I am going to use my computer and amplifier as a signal generator. I can go to the Internet and enter "online tone generator" and get a program that allows me to make tones of different frequency. I have the computer output routed to my amplifier. I think I can then carefully put the speaker output directly across the tweeter terminals to see if I can hear the high frequency tone. I will do this at low level of course to make sure I don't damage anything. I hope this works. I see that I can get tot e tweeter and mid range terminals easily using the terminals on the front panel of the speakers with the grill removed.
  7. Since both speakers act the same, i.e. no high freq sound I gather the best thing to do is to remove the woofers, then the stuffing, then troubleshoot the pots and capacitors. Moving the pots does not cause any sound or scratching at all. I do see that there are very small wires connecting the tweeter and midrange voice coils to the terminals on the front panel. Using my oscilloscope, I should be able to connect my amplifier to the speakers and then look for a signal on those fine wires. That should tell me a lot. Hey, I really appreciate all of the good advice I am getting here.
  8. OK, I'm going to repair them. I have a copy of the repair guide that this group has made. It is very good. So now I have a technical question. The AR3s were acoustic suspension speakers, so they say. Is there something magic about the woofer, and other components that made this speaker so good?, or is it because it uses a totally enclosed box, without any port, and the box is stuffed with sound absorbing material. I have heard that this speaker takes a lot of power to drive it. Is this because there is no port? Does this mean I will eventually need a fairly high power mid range and tweeter? I do have knowledge of electrical components. I wonder what has gone bad on both of these speakers? I guess the pots could have opened up or maybe the caps. I will have to investigate. It is really wonderful that this forum is read and responded to. I am looking forward to my project, with help and advice of course.
  9. Here are some pics. I noticed that there are some cracks around the woofer center cone.
  10. I thjink I found the parts express page. Does anyone know what I should buy for midrange and tweeters?
  11. Could you give me a link to "parts express" please.
  12. I recently acquired a pair of AR3 speakers. The high frequency speakers on both are bad, i.e. no sound at all as far as I can tell. Should I attempt to repair and replace the tweeters or just junk the speakers? What would be the cost of a set of mid and high freq speakers for the AR3 and where would I get them. Perhaps I should just send them to a speaker repair facility. Suggestions???
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