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About ar_pro

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  1. This is a good observation. A lot of attention is justifiably paid to AR's acoustic suspension woofers, but the dome midrange is in the DNA from the AR-3, onward, and definitely helps to establish the playback quality that we all appreciate & enjoy. Excellent documentation, Giorgio - this will be a big help to anyone working with these mids!
  2. Looking back on this thread, as Steve F has pointed out, an 8" 3-way system using AR's top shelf mid & tweeter would not have fit into the Classic lineup; the best opportunity would've come with the AR-9 series and thereafter. The market for smaller monitors of extremely high quality was just about to take off, and AR could've been a part of that event. It might also have required an updating of their speakers' fit & finish if they were going to compete with compact monitor manufacturers like Wilson Audio, ProAc, or KEF; but this would probably have taken the line into the realm of premium-priced loudspeakers. Utilizing AR drivers, Mark Levinson probably could've done something very cool with a top-quality 8" 3-way design, but it would not have been inexpensive.
  3. As Kent mentioned, a popular favorite is the Parts Express tape - it installs easily & quickly. Awhile back, I switched out AR foam gaskets for Mortite, which works extremely well, and is inexpensive. A little goes a long way. Photos below. https://www.homedepot.com/p/Mortite-19-oz-x-90-ft-Grey-Weatherstrip-and-Caulking-Cord-B2/100152937 It would be surprising if the black & red caps are still within spec - hard to believe, but we're at 40 years on the AR-9 series.
  4. Very nice work, Mike, and excellent documentation. The 2ax was my very first AR speaker - literally, because I bought a single floor model for $60, and had to wait a few months to afford to buy a second. As Kent mentioned, this is a great combination of drivers which should sound really fine when you're finished.
  5. This is the AR-9, arguably one of the best systems ever built by Acoustic Research, so why consider installing a capacitor that doesn't meet factory spec?
  6. Nice work, David - your method for stabilizing the MDF seems to be very effective. It looks like you're well on the way toward rejuvenating the damaged areas. Those big boxes are fun to wrestle around, aren't they? ☺️
  7. My Significant Other had been cleaning out one of those big Rubbermaid storage totes, when she hit a vein of promotional swag from the Las Vegas CES shows that we'd attended in the early '80s. There were Maxell belt buckles that looked like cassettes, a Commodore VIC 20 keychain with a processor housed in lucite, facial tissues in a package that mimicked a Fuji video cassette, and numerous trinkets, odds & ends from long-defunct tech companies. There was but a single item from AR, the 5-inch pin shown here. Wonder what "the AR option" might have been?
  8. This just doesn't seem possible. 51 LST cabinets at a 511 USD Buy It Now price? The location listed is about 50 miles from London; this could be an extraordinary purchase for someone in the UK.
  9. The 100uF poly cap is especially notable, at about $27.00 for the PulseX version against 71 cents for the NPE. Changing out crossover parts - caps, resistors, terminals, wire, binding posts, level controls, etc. - is an aspect of speaker restoration that stays within the lines of the original design, but also allows for the "what if" possibility of utilizing components that might not have gotten past the original bean counters those many years back. That these ancient designs are still competitive with high-quality modern speakers is extraordinary, and that they can be tinkered to improvement with a relatively small investment for parts and some simple soldering is doubly so. The practical application of experience, modifications, parts substitutions and artful technique is my favorite part of this forum - it's always a pleasure to see how things are done.
  10. Depending upon condition, a single AR-1 might sell for $1,000 to $2,000 on eBay, with the value relying heavily upon originality (no replacement or modification of anything) and the physical & operational state of the Altec upper range driver. An excellent working condition pair in mahogany recently sold for $5400. There is really nothing that you could do to your speakers to enhance their value; they are what they are, and you could negatively affect their potential selling price by changing them in any way. Getting top dollar for the AR-1 can be demanding - people who pay for these speakers know exactly what they are, and what to look for. A thorough, accurate description is important. You'll need to take lots of photographs that clearly show the condition, and be willing to properly prepare the speakers for shipping. Handing off to a "professional" like the UPS Store is not adequate - you'll need to do it absolutely right, and document everything or prepare for the possibility of an eBay "not as advertised" complaint from the bidder. Good luck!
  11. That's really nice work, Larry - I especially like your positioning & management of the new resistors and stacked caps. The parts layout on the AR-91 crossover isn't ideal, and it can be tough to work with. Please let us know how you wind up setting the new level controls on the AR-58S, and if you decide to keep the Tonegen woofers, or the original drivers. I think the Tonegens might not get the respect that they deserve - they are excellent woofers.
  12. Both 8" drivers are missing their trim pieces - the left driver looks as if someone has tried to fashion trim from foam or the like. And two of the bolts on the right 8" don't appear to be original. The cabinets look great, but you'd have no idea about the quality of the crossover work done - they specifically mention the bypass caps, but don't say if all of the crossover caps have been replaced, or the type of capacitors used. If you're reasonably close, drive over & take a look - maybe $700 on the spot would get it done.
  13. Very true. I was thinking American magazines, but didn't write it. To a lesser extent, there's also Sound & Vision (Stereo Review's current iteration), and Hi-Fi + magazine, the former being slightly more inclined toward the home theater A/V crowd. In the UK, Hi-Fi News is especially good when it comes to covering a wide range of equipment, including vintage gear, and they have a staff of competent and interesting writers, among them Ken Kessler, who has a healthy respect for Edgar Villchur and his impact on high fidelity reproduction in the home.
  14. Absolute Sound and Stereophile are pretty much "it" for printed-page audio magazines. AS pulls no punches when it comes to their High End coverage; they're comfortable with the cost of the equipment that they review, and more affordable gear usually takes a back seat to their coverage of the Bugattis, Ferraris and Porsches of the hi-fi world. Stereophile is tougher to pin down; their readership skews older and reasonably affluent, hence the coverage of stratospherically-priced equipment. But some effort has been made to review gear in a price range more in line with what used to be considered "normal", although it's usually handed off to junior writers who take it semi-seriously, or writers who make a botch of the review through an idiosyncratic writing style. Herb Reichert comes to mind - good luck making any useful decision based on his reviews. Ironically, Art Dudley's column not infrequently deals with vintage equipment such as the aforementioned Altec Valencias, Thorens and Garrard rim-drive turntables, and on one occasion the Large Advent. To read Dudley's passive-aggressive dismissal of Villchur and his accomplishments in Stereophile's pages is surprising and a little distressing. The magazine recently changed editors - maybe this explains how this got into print.
  15. The article in question has been posted at the Stereophile website: https://www.stereophile.com/content/listening-203
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