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DKinYORKpa

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About DKinYORKpa

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  • Birthday 04/02/1953

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    Male
  • Location
    Muscletown, USA
  • Interests
    Tube radios, local history, fine woodworking

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  1. I haven't posted here since I joined after I came into possession of a pair of AR1Us. I replaced the caps (old one are still there), re-sealed the woofer surrounds and replaced the grill cloth (they were ripped, stapled and useless). They sound great but I only listen to them occasionally. I've thought about selling them but really hate the idea of the 755s being ripped out for resale. I could do that myself. Since they are painted white (they were unfinished, of course), their most redeeming quality is those damn 755s! How do you find someone that would want them for their historical importance but still pay the price for the 755s? Make them sign a not-to-remove-the-755s-agreement......LOL....?
  2. Someone was practicing on the 1804 Tannenberg organ at the museum where I work and he played something that really sounded good. It was Bach's Toccata & Fugue in D Minor. Since I had to ask him, you now know how familiar classic music is to me . That night I borrowed a CD from my step mom with Diane Bish playing it on the Muller organ. First I was blasting it through my 1960's Jensen 3-ways. Killer! This is what I'll use now to show off speakers. So then I throttled back the volume and switched over to my AR 4xs, with replaced period tweeters. When I raised the volume a bit, there was a horrible metallic clicking sound coming from the tweeter that I was closest to. I immediately turned down the volume and all was well. I've played the speakers since then but did not push them and they seem fine. So what did I hear? What's the diagnosis?
  3. While this is no huge accomplishment...LOL....I thought that I'd share. Including the purchase price, Stitch123 fabric,capacitors and original tweeter replacements, I'm in these speakers for $140.00. They sound good, so I'm happy. Up close, the cabinets don't look as good as the photo, though. There were many small veneer chips that I melted a perfectly matched wax into instead of tedious veneer repairs. There are also a lot of scratches. They had that barn-find look. I lightly sanded them with 400 paper and then wiped them down with medium walnut Danish oil. They definitely pass the 5 foot test.....LOL. The one grille frame was broken in half, so I made 2 new ones, BTW.
  4. Hi Jeff, soon after Kutztown, I ordered an old tweeter from eBay (from Hawaii) just installed it today with new crossover cap. SWEET sound. I can see why AR 4xs get rave reviews. So now I need another tweeter and, of course, there's 2 on eBay now:

    http://www.ebay.com/itm/Acoustic-Research-Speakers-AR4-AR-4X-Tweeter-/302081291276?hash=item465572b40c:g:oD4AAOSwLnBX4dt0

    What to do?....lol......I guess keep looking for another single!

    1. Show previous comments  11 more
    2. owlsplace

      owlsplace

      yeah, some of those old cheapo speakers were made with great looking cabinets ;)

    3. JeffS

      JeffS

      Looks like a tiger maple version of the molding on a 3 / 3a.

    4. DKinYORKpa

      DKinYORKpa

      I have an old Craftsmen FM tuner......I assume it's the same company......the history on the eBay listing talks about their tube amp, as well

  5. Since you're into history, I'll tell you that for the last 29 years, I've worked at the local hysterical society. We've merged since then and changed our name    www.yorkhistorycenter.org     I have a complete woodworking workshop and up until about 9 years ago, I barely knew what a vacuum tube was. Then the old radio bug bit. Then, 6 months ago I bought off CL, a 1959 Fisher French Prov. console stereo for $70. Was going to eBay flip the preamp and amp, but kept. (Pics are at AK in Fisher section) Then I refoamed my college Advents for my workshop Dynaco SS system. (I'm now back into audio...LOL) These AR 1s came out of no where and I'm hooked!) I'm now rebuilding a pair of AR 4xs for the fun of it. I have no need for them....LOL....DENNIS

    1. owlsplace

      owlsplace

      Ha, ha, ha, to paraphrase Tina Turner, "what does need have to do with it!" Sounds like the 4x's should go in the workshop ...

    2. DKinYORKpa

      DKinYORKpa

      LOL......Here's the link to my Fisher re-build:     http://audiokarma.org/forums/index.php?threads/french-provincial-console-good-bye.732298/

      The speaker on the right in the first pic is my Advent........When the foam surrounds went bad 30 years ago, I gave them to my friend that worked at Clair Audio in Lititz, PA. He was in the speaker department building cabinets for concert speakers. "Yeah, we can fix them easy." A month later I pick them up with new grille cloths and replaced woofers; EV I recall. It was "easier" than refoaming! No charge to me as a friend. The grille cloth was new, I know now, because the EV speakers hit the old cloth and frame!...LOL......I discovered all this when I refoamed those woofers. So they aren't Advents anymore. My refoaming (first attempt) was successful and they do sound good. The Jensen speakers from the console also sound good when loud. I have a stash of 50 year old varnished walnut plywood that I used to make them.

    3. owlsplace
  6. AES grille cloth is S-G455 Tan/wheat brown.......it's a guitar amp fabric.....nice and stiff.........the plywood is referred to as bendable plywood (one direction)......I didn't buy, just acquired it.....it's not much less than 1/8" though
  7. OK, the speakers are finished! They sound good, but I'm no audiophile. Now I'm afraid to crank them too much, but I had them loud. Too loud for my wife anyway. I don't want to say that my large Advents are better, just different. And I'm not afraid to push them. So anyway, here's the grille cloths that came with them: They match fabric-wise, but are not usable. They have a vertical gold thread running them. I'll keep them with the speakers for any future sale or my estate sale! One was on 1/8"masonite and the earlier one on thin cardboard, half of which was glued to the baffle board. I send away for that standard AR cloth but it was to close to the white paint, IMO. My new grille frame is poplar plywood a little thinner than 1/8". I adhered a cloth from AES that I like. Don't scream; it's quickly reversible. I sprayed the outside with flat black paint. Since the frames flex into the upper and lower grooves, I cut the long sides to precisely tight with the fabric pulled around. There's velcro that grabs only in the middle, the other pieces don't bite. I was able to easily remove the grilles with a very thin piece of metal.So here's the finished look. For the paint, I just scrubbed it good with cleaner. No point in stripping the paint; it's been there a long time and there's no walnut there.
  8. Well, I coated the dust cap and the woofer now moves like the other one.
  9. I found 2 answers to this researching past posts. After resealing the pleated surrounds on my AR 1 cabinets, the one passes the "push-in test". The other one doesn't. On that one, there is a domed dust cover made from the same material as the surround. If I lay a small circular piece of paper on the dust cover, when I push in on the cone, air flutters the paper. Should I seal the cover? On the good cabinet, there is a slightly domed felt cover.
  10. Hi, I left this message for Roy, but i guess he's busy today. i applied that sealer to both speaker's woofers. The one passes the push test. On the other one, there is no effect. On that one, the dust cover is a domed affair and its material looks just like the surround. Can it be leaking air? Can I seal it as well? On the good woofer, the dust cover is a slightly domed felt.

    1. tysontom

      tysontom

      As I said before, make sure there is not a cabinet leak somewhere else.  You do not want an absolutely air-tight cabinet, but you do need an "acoustical" seal, thus the slow return of the woofer when depressed, or put another way, the woofer should feel like it is being moved through a viscous fluid.  The cone should not bounce back immediately when depressed.  The dust cap is probably not critical, since the space between the voice coil and the pole piece is very small and won't let much air pass through, but there are holes in the voice-coil former ("bobbin") that do allow air to pass through.  

      You could put the sealer on the dust cap since it is cloth, and see what that does.  When you push in the woofer, see if there is any air movement at the dust cap.  There is the risk of over-damping the woofer, but this probably isn't the case here.  Give it a try, but put a light coat on the dust cap.

      --Tom Tyson 

    2. DKinYORKpa

      DKinYORKpa

      I got impatient for a reply so I posted on the forum. As I said there, air is definitely passing thru that dust cap.

  11. Here's a view of the cabinet with 2 different cap cans on top of each other. I guess they were 12 uF each but they had to use a slightly thinner one for clearance of the bottom of the speaker?
  12. I was there Friday and picked up a rough pair of AR-4xs with bad tweeters. The fellow knew my name here from my AR-1 post, but I didn't find out if he knew it from here or AK. Oh, the two 4xs were $20. I already cleaned the pots (first time) and they're now perfect.
  13. I just resealed the surrounds on my AR 1 woofers. The one seems perfect! The other one had no effect. FWIW it has a domed dust cover of the same material as the surround, IMO. Does it get sealed? The other one has a flat felt-type dust cover.

  14. Thanks for the info........FWIW, I just opened up the higher serial number cabinet. While the earlier numbered one had a single cap can with three 8 uF sections, this one has 2 cans tied together that don't match in appearance. The one measures 11.5 and the other 10.4..... I'm used to seeing values go up (On the other one, it measured 29 uF)........Just to be clear, I do want 24 uF, correct?
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