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swayzeeee

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  1. swayzeeee

    WTB - AR-4x Tweeters

    I need a pair for an AR-4x rebuild project. PM me if you have any you'd be willing to part with. Thanks!
  2. swayzeeee

    Attic Find - KLH Model Seven

    Ok. I kept the rubber washers. Whew. Caps have been ordered.
  3. swayzeeee

    AR-4x Surprise

    So... let me see if I'm following all of this. I have a rather early crossover in my cabinets with a 265 turn coil. (How does one convert from "turns" to Henrys, by the way?) That inductor was used as a special case early on to pair with surplus AR-4 woofers that they were using up. It's much easier to find AR-4x woofers, so I should build a crossover that pairs with those. To build the more standard AR-4x crossover, I will need an AR#5/1.21mh coil and a 20uF capacitor. The cap is easy to find. How about the inductor? Would any 1.21mH inductor work or is there something special about the AR#5?
  4. swayzeeee

    Attic Find - KLH Model Seven

    Thanks! I was just about to ask about that. 😀
  5. swayzeeee

    Attic Find - KLH Model Seven

    Thanks! I pulled the caps and they are labeled 2x2MFD and a 2x4MFD, so I would order a 12 uF replacement, right? This seems to confirm the findings in the AK thread, posts #2 and #45.
  6. swayzeeee

    Attic Find - KLH Model Seven

    I was able to get into the first one of these yesterday following the great, detailed descriptions in the AK link above. It was a bit of a struggle to get the back plate off and there may be a scratch or two on the metal that wasn't there before but... job done. I chipped away the epoxy and found the crossover to be as documented. The hardest thing for me as a rank newbie was following the wires to make sense of the circuit. First off, the three input wires coming from the terminals were tied into a big double knot, which made following their path kinda frustrating. Then, one wire would go into a wire connector to be split and the two wires coming out would be a different color. For example, the blue wire coming from an input terminal goes into a connector and two black wires come out and connect to the capacitors. There was a mess of six red wires coming in or out of a big wad of black tape... these had nothing to do with the red wire from the input terminal. Four of them are coming out of the two double capacitors and the other two go off to the two tweeters. I drew up a picture as I was trying to figure all of this out to keep it straight in my mind, submitted here in case it helps someone else down the road. It's not meant to be as elegant a circuit diagram as the one on AK, it's just so I remember what color wire goes where.
  7. swayzeeee

    Attic Find - KLH Model Seven

    Tucked way in the back of my uncle's attic was an old pair of KLH Model Sevens that "dont work". I was told, "You can have them if you want to tinker around with them." 😀 I got them home this morning and hooked them up: woofers sound fine but the tweeters are barely audible and sound scratchy. First things first, I guess: how do I get into these to take a look at the crossover? There doesn't look to be an obvious way in. The back panel doesn't just screw off...
  8. swayzeeee

    AR-4x Surprise

    Oh...The speakers I picked up were KLH Model Sevens by the way. Nice cosmetic shape, woofers sound strong but the tweeters are barely audible and sound kinda scratchy. An exciting find though! Now to start researching...no idea how to get inside them. I'll start another thread for that in the KLH section...
  9. swayzeeee

    AR-4x Surprise

    Thanks again for all of the suggestions and advice. I really appreciate it. I think my strategy will be to be patient and look around for original 4x parts and then to sell the mismatched parts that I have. It might not even take that long... I picked up one woofer from eBay for under $50, including shipping this morning. ra.ra - would you be able to post a schematic for this crossover with dual caps? Or point me to where I might find one. In the meantime, I've moved a pair of Ohm Model L's into my office, so I'm not exactly hurting for sound. 😀 ...And maybe something else rally cool has come out of this... I was telling my uncle the story of my ARs last night over beers and he let me know that he has an old pair of KLH's in his attic that "don't work" and if I want to tinker around with them, I can have them. 🤤 Headed over right now. Coming soon to the KLH forum...
  10. swayzeeee

    AR-4x Surprise

    Oh boy. What about trying to acquire original AR-4x woofers and tweeters somewhere? I have AR-7 parts to trade! 😀 Seriously, are the original parts hard to come by? Just asking about availability/scarcity. I quick eBay search turned up one woofer that was crazy expensive and no tweeters at all. I'd rather wait, look around for the right stuff and see these restored properly than try to mash something else up. To answer ra.ra's questions: the serial numbers are FX46064 and FX 46081. I've never seen the original cabinet stuffing myself but judging from pictures I've seen posted, I think what I have is not original. There's no shroud to protect the woofer and the stuffing is more like fiberglass insulation than "rock wool".
  11. swayzeeee

    AR-4x Surprise

    Thanks for the input so far. I've taken the stuffing out to get a look at the crossover. Looks like the 20uF cap has been replaced and the pot has been bypassed. No wonder the pot didn't work. 🙄 As far as I can tell, the crossover looks like what should be in a 4x, once I clean up the pot and hook it up. I just have no idea if this crossover design is appropriate for the AR-7 woofer and replacement tweeter that I have. Maybe, I should start to look around for the proper woofer... Pictures below...
  12. swayzeeee

    AR-4x Surprise

    A couple of years ago, I bought a pair of AR-4X's off a guy from Craigslist, having never heard any Acoustic speakers before but having heard plenty about their reputation. I stuck them in my office where they have been in service at moderate or lower volumes pretty much everyday. I thought they were ok. Nothing to get all that excited about really. Recently, I've been thinking about re-caping them and was inspired a bit by the great AK post about restoring the pots, I decided to open them up and give them some care. Well... what I found after prying off the grill of the first one just now was quite a surprise. The woofer is not at AR-4x woofer at all but an AR-7 woofer! And the tweeter? That's not the original, right? Grrrr. Well... what to do? Does anyone know about these parts? Is the AR-7 woofer very much different than an AR-4x woofer? As in, can they be interchanged? The tweeter appears to be a modern reproduction, probably this one from amazon: https://www.amazon.com/SS-Audio-Tweeter-Replacement-T-135/dp/B00F4FHR16 ...And can this setup approach what an original AR-4x should sound like... or should I go searching for the real parts?
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