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Found 10 results

  1. My first speaker rehab is a pair of AR-5's. I'm on the woofers which I have determined have bad voice coils. Is it reasonable to think this can be repaired or am I at a point where the woofers need replacement? Thanks for your help!
  2. https://www.parts-express.com/wet-look-4-oz-black--340-513 This looks like a way to add a little protection to my 8" CD woofers (these are of 1987 vintage and don't appear to have the same type coating as the woofers in my Threes.) Anyone use this? Should I NOT use this?
  3. Hey folks been a while - preoccupied with kids and all (two and through... hopefully). Finally getting back to the ARs and removed the cone / spider to find that the coil windings had partially come apart in the magnet. I found a few threads with some discussion on options for replacement but didn't see much on results. Apologies if I just missed it. Chances these can be rewound? I am able to reinstall them but they don't lay clean. If I was able to, it's clear I would need a glue of some sort along the way to hold in place and keep them flat. Otherwise, I know I could recone but I'm trying to preserve as much of the original as possible. If winding is not an option, can you just replace the coil? What are best currently available parts? Reading other threads, looks like John at M_sound closed up shop, which is where I ordered refoam kits previously. - Sean
  4. Hi everyone, First off to say kudos to those who complied the 'Restoring an AR-3a' document; it is absolutely crucial for those attempting it for the first time. Without that detailed knowledge, I just wouldn't have attempted it at all. But I wonder whether anyone would like to give me a prognosis on this 3a woofer. As you see, it's riding pretty low in the saddle, lower than its twin, and has a bit of a droop on the RHS, making it a kind of ellipse shape. Resistance reads as it should, about 2.6. You can pull it up quite a long way, and push it down a bit, but it's difficult to do either without hearing the VC scrape. Other opinion has offered me the possibility that it has spent too long on its back, and that I might want to take off the dustcap and stick in some shims to perk it up a bit. Trouble is, I don't want to replace the dustcap with a new one, so would have to take it off in one piece and then glue it back on. This is, by all accounts, not for the faint-hearted. Would anyone just refoam it, and see what happens? Thanks for any input. I have enjoyed reading many posts on this site, and found them really helpful and informative, but this is my first, and I send you best wishes from the UK. T
  5. In a couple of weeks when I get back from a trip south I have some crossover work to do on my AR3a. I've been into them a couple of times over the 40 + years that I've owned them but I didn't rotate the woofers 180 degrees either time. I've seen this recommended several times on various sites. I assume the purpose is to counteract the results of gravity on the cone, voice coil and suspension. It's easy enough to do but is it necessary? Also my 3a's have cloth surrounds that appear to be in pretty good shape and the woofers appear to pass the press and spring back test but if it makes sense to reseal the surrounds I'd like to do so. Yes or no? Finally, I've heard it stated that the original Fiberglas fill should be replaced in these 40+ year old speakers because it draws moisture etc. I've never personally seen any evidence of that and feel that there's nothing wrong with the original outside of the fact that you need to wear gloves when dealing with it.
  6. I have a Cambridge Soundworks Ensemble II woofer. It has two speakers in it. One I have re-foamed and it's ready to go. The second speaker (a 6.5" 4 or 5 ohm woofer) is fried, having no continuity. I've looked for the break and it can't be found. Anybody got one of these they'd be willing to pull out of an old Ensemble II woofer and sell me for a reasonable fee? I don't care if it needs new a surround. I can do that. I'd be amazed if it didn't need new foam, in fact. I've contacted Cambridge Soundworks, and they've told me that the woofers for the Ensemble II must be from the Ensemble II and cannot be taken from the I or the III or IV or.... I'm not talking about the smaller tweeter/midrange "satellite" speakers, but the single woofer unit of the Ensemble II in which reside two speakers, one of which I need. By the way, taking the unit apart is not difficult. Ten screws need to come out and then the panel lifts off which exposes at least one of the speakers. Four more screws that hold in the speaker and then unplug it. It is not soldered to the lead wires. Update 7/27/13 I think I have a speaker on the way. We will see if it meets my needs. Thanks.
  7. Hi guys, I am new to this forum and I find it very usefull. I'm writing because a need a suggestion about repair of my old AR25 speakers. I have a speaker with the woofer broken, the other one has the foam destroied so I think to change both woofer. Do you have any suggestion about the correct woofer (brand and model) to substitute the old ones? Thanks in advance for any support. Ciao Enzo from Monza
  8. I bought a pair of AR-4x speakers that had a newer tweeter in one cabinet, and corroded pots on both, so I decided to rework the pair. I utilized new phenolic ring tweeters - 8 Ohm (http://www.parts-exp...tnumber=270-252), new solen 20uF 400V polypropylene capacitors (http://www.parts-exp...tnumber=027-582) and new L-Pad attenuators - 15W Mono 3/8" Shaft 8 Ohm (http://www.parts-exp...tnumber=260-248) in place of the corroded pots. While the high end is now very well defined, I'm missing the bass that made the speaker sound so full and smooth before I started working on it - overall the sound is very thin. Did the pots contain some sort of resistor that I'm not taking into account with the new L-Pads? Am I missing something, or should I fix the pots and use them instead? As an aside, thanks to all the contributors to this site who make this learning experience so much fun, this will not be the only time I open up 40 year+ old speakers, next up are some KLH 17's! Phil
  9. Hi, New to the forum and I just picked up this pair of Advent 3s. The woofer on one has a scratchy sound, like a short. I switched woofers around, so I know it's not the electronics in the speaker cabinet. I don't see any tears or other damage to the woofer. Is there any way to fix this? Thanks for your help Jordan. All of my vintage stereo finds: http://swingmodern.blogspot.com
  10. Hi everybody, My father recently got hold of a pair of AR2ax with woofers in need of re-foam. The mysterious thing is that although the drivers look original (at least to me) the cones look like they have a flat edge and not an angled one! All the re-foaming kits I have seen for the AR 10" woofers seem to be targeted at angled cone edges, and I was told that AR never made woofers for the AR2ax with a flat edge! Both woofers look identical in all respects: basket, magnet, cone material and shape, and dust cap. The basket looks like stamped steel, and one of them has a stamp on the magnet saying "Feb 3 1972". They both have exactly the same paper cone with a 2-1/4" felt dust cap. Did somebody re-cone both woofers with the wrong cones at some point? (a clue may be a sticker on both woofers reading: "Stuart Elec 1-5-88 UPS" - or maybe URS instead of UPS). I attach pictures with the hope that somebody will be able to shed some light on this mystery. Thanks in advance! Ben P.S. I have been reading the posts on this forum for quite a while now, but this is my first post. I am always amazed at the amount of great advice and knowledge on this forum - it is very educational!
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