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About bigx5murf

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  1. Upon receiving the HD13d34, it was immediately obvious it couldn't just be dropped intho the Thiels. The magnet was significantly larger. I then went on to carefully transfer the diaphragm and voice coils over the original magnets, which went without a hitch. Both tweeters measured 6.8ohm when complete. Finally I turned my attention to the crossover. Far as I can see, all the caps are =/-20% tolerance. There were only w electrolytic caps on each crossover, so I opted to only replace those. They are 50uf 100v, and 4.7uf 50v. I used PE Dayton 5% caps as replacements. The crossover is a lot of work to remove, so I opted to do the work with the crossover still inside the speaker. There was just enough room, if you pushed the wires aside, to snip the original cap legs, twist the replacement legs with what was left inside, and solder them together.
  2. I finished restoring these a couple of weeks ago, and have been listening to them everyday since. They really are a superb speaker, and I encourage anyone who finds a pair to put in the work to get working. The sound signature is on the bright side of neutral. The highs are really detailed, yet there's little if any siblance. The bass is there, but it's on the polite side, and is actually quite impressive considering they're produced by what amounts to a 6" woofer. Anyway, I figured I'd document this to help out anyone who finds a pair. I'll start with the woofers. Don't try to find surrounds from your usual sources. Odds are they won't fit, actual size is in between a 6" and 6.5". This here was a perfect fit. https://www.midwestspeakerrepair.com/shop/speaker-repair-kits/6-5-inch-refoam-kit-f6-1/ Both of my tweeters were dead too. I tried unwinding one coil so that there'd be enough wire to reconnect. Doing so dropped the impedance really low. They were supposed to be 8ohm, but after unwinding I got 2.8ohms in one tweeter, and 1.6ohm (both ends needed to be unwould and extended in this on) in the other. The tweeters are labeled "Polydax" and had a faded model number that I think is "HD130xi34". Through research it seems "Polydax"and "Audax" are one and the same, so I was able to find what seemed like a similar tweeter, the "Audax HD13d34". Which through more research I've found they have a modern version that was supposed to be "Improved", the "TW034X0". Diaphragms and voice coils only for the TW034X0 are available from Madisound. I initially purchased these. DON'T USE THESE, THEY WILL CAUSE MIDRANGE DISTORTION! Looking at the specs, the TW034X0 and HD13d34 are identical for resonant frequency (TWO34xo = 800Hz, HD13d34 = 900Hz). I tracked down a pair of HD13d34 on ebay, seller said they came out of a pair of "Phase model D".
  3. I'm just in the planning stages of my next speaker resto project. So far I've restretched and reglued the parts of the grill that were peeling away. The woofers both need a refoam, but the sizing is really weird, anyone know a source for needed surrounds? 6" outer edge to outer edge for surround 4.25" outer edge to outer edge for cone Anyone know if the tweeters need ferrofluid, or any info on recapping the crossover? I've heard Thiels have overly complex crossovers.
  4. bigx5murf

    My L710 Restoration

    My pair had foam surrounds. I ended up just rubbing a layer of howard's walnut on these, and I'm happy with them as is. Been using them ever since, and am still surprised by how good they sound. I actually have mine on 3' stands, which is probably not the recommended way to position them. I've been using these on a system that lets me switch between 4 sets of speakers, they're as followed ADS L710, EPI 100v, Polk SDA-2B, and Sony APM 690. Yes that's the order I prefer them in.
  5. bigx5murf

    EPI 100V with Cambridge Soundworks woofers?

    The crossover on these is extremely simple, a 10uF capacitor, who's only function is to limit the low frequencies to the tweeter. The woofer is supposed to run all out. Without the specs of the cambridge woofer, no one can really tell you. Your best bet is to use a measurement mic to check the response as the speaker is now.
  6. bigx5murf

    EPi 100 woofers?

    They do show up on ebay all the time, but they're from multiple series, and there's significant difference from each series. I tried buying one before, and the cones were locked up despite resistance on muti meter being fine. Human Speaker has a modern replacement, although it's a bit pricey. If you want to use something off the shelf, you'll want something that tops out at 1800Hz, and need a measurement mic to check the levels, then try to make a simple crossover to either lower the woofer, or tweeter output till you have flat response. Figure out what's wrong with your current woofer first. Sounds to me like the cones might've come detached from the spider. If so, you can carefully glue them back together using a bead of adhesive. I like to use 2 part epoxy, and apply with a toothpick.
  7. bigx5murf

    AR Holographic imaging M2 + MC1 center

    No Longer available
  8. bigx5murf

    My L710 Restoration

    Should I do that to all panels? One panel on each is actually in very good shape, the top, and outer panels are very faded.
  9. bigx5murf

    My L710 Restoration

    I found a pair of L710 in somewhat rough shape at goodwill for $15 a week ago. I've been slowly working on them as time permitted. So far, I've... 1-refoamed all 4 woofers, they were completely disintegrated, these were very difficult to align with test tones, took a few tries each, except for one which I got the first try. 2-replaced the 90uF cap on the crossover, this was surprisingly difficult to find. I ended up running a 68uF and 22uF cap in parallel instead. 3-Installed 5 way binding posts. This was difficult to find ones long enough to work. The only ones I found were from PE, required boring out the contacts and PCB on the crossover. They work, and sound great as is, but there's a few cosmetic issues I want to tackle. I'm going to replace the grill cloth, already have the cloth, not sure what glue to use. Can anyone recommend? I want to refinish the cabinets, close to original as possible. The cabinets are in decent shape, but the inner panel on each is much better than the rest. One panel has the damage in the pic on it. What's the easiest way to get a nice even finish on these?
  10. Looking to sell my AR Holographic Imaging M2 bookshelf speakers and MC1 center speaker. The M2, have some cosmetic issues, particular on two corner, one dust cap tore, and was repaired with rubber cement, grills have various small fraying. Stands in pictures not included (attached with stick tack, not screws). I'm looking for $200 shipped to lower 48 states. Local pickup in Las Vegas for $150 All reasonable offers considered
  11. bigx5murf

    AR Environmental Partners

    I finally got to refoaming these, life got in the way. Anyway, the two long screws holding the thing together, had what looked like drinking straws guiding them through the stuffing. Looked like someone else might've been inside before me. But I'm pretty certain I'm the first to refoam it, and the screws holding the woofer in don't have any bit marks on them. So I wonder if the factory really cut up drinking straws for assembly. I found one of the capacitors with a disconnected lead, the glue holding the cap in place gave up. But a quick drop of solder fixed that. Testing them out on a 50wpc jamo amp at the moment. They sound somewhat v-shaped, and are very sensitive to placement height. Too high, or too low, and they get really bright. They also get muddy with music that's too busy, like rock. They sound great with jazz and vocals though. I'm reconsidering using these as my rear surrounds due to the height issue. I can't have them at the same height with my current couch layout, and mounting solutions. Because of their wedged shape, I'm thinking of using these as front heights, just placing them on top of my mains, and have them aimed at the ceiling like atmos speakers.
  12. bigx5murf

    AR Environmental Partners

    A friend of mine that DJs, told me the mount looks like pro PA speaker mounts. Sent me this link for wall mounts. https://www.adorama.com/pypstndw15.html?gclid=CjwKEAiA8dDEBRDf19yI97eO0UsSJAAY_yCSqG6LSbk-DJ0LnYk6X2uhlGj0Wq3I0nHVRSEa1Cp4GhoCD3vw_wcB I ordered some 4" surrounds, just waiting on them for now. I'll get some disassembly pics up hopefully this weekend.
  13. bigx5murf

    AR Environmental Partners

    I found a pair of these thrift shopping, and thought they'd go great in my home theater setup (AR holographic imaging M2 + AR MC1 center), as rear surrounds. They're built like rocks, with what looks like automotive quality wrinkle paint job. But they need some work, I can see through the grill, the foam surrounds rotted. But I have no idea what size surrounds, they look like they might be the same woofers inside my MC1 center. I have can't figure out how to remove the grills. Also, they look like they're supposed to have some sort of brackets. Could use some ideas on how to wall mount these, or where to get the brackets they're supposed to use.