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  1. Today
  2. Mez

    Refoam AR-9 woofer

    If the woofers didn't bottom out playing Metallica at very high volume, they should be good on anything!!
  3. AdamT

    AR-3A Restoration Project Questions

    Thanks guys. I’ll post some pictures either tonight or tomorrow. I’ll definitely check to see if they are making contact, as visually they seemed okay after cleaning.
  4. ra.ra

    Refoam AR-9 woofer

    I think Stimpy may be offering very good advice here. The part drawing for the 12-inch 003 woofer clearly shows the masonite ring at both surround and spider locations, and this is nothing more than typical 1/8" nominal thickness hardboard. The cone excursion may be somewhat limited without the ring, but I suspect that limitation would only show up at high volume levels when the woofer is pushing some really big air. If the performance is this satisfying with your typical program material, there's probably no need for further corrective measures.
  5. thornev

    Bi-wiring a pair of AR-2Ax

    Thanks, Bob. You may be right. It might be placebo, but I could swear the highs are a tad more full with the bi-wiring. Thorne
  6. frankmarsi

    Refoam AR-9 woofer

    You may have to buy replacements. I just checked my 9's and the masonite looks a slight bit thinner than the original classic woofer line?
  7. bfastr

    Bi-wiring a pair of AR-2Ax

    Thorne, after looking at a Marantz schematic it seems to me you arent gaining anything by using the remote speaker output as a second amp to the speaker. the Marantz outputs share a common return at the connectors. and the hots, or outputs come from the same main amp. they are just run in parallel. so from what I can see you are effectively just moving the jumper from the back of the speaker to the Marantz remote speaker switch. but I could be wrong, maybe a Marantz engineer will chime in. I think your assumption that the output is shared is correct. So I don't see the advantage of breaking up the connections at the speaker ( in this case ) Bob
  8. Stimpy

    Refoam AR-9 woofer

    The Masonite rings would give the woofers a bit more travel. The thickness of the Masonite would determine this. But, if the woofers aren't bottoming out or distorting, I'd be willing to leave things as is too.
  9. Yesterday
  10. mpfrank

    Wall mounting Allison CD6

    I have been using these (or similar) for years to wall mount Allison 6s and 4s. I use plastic anchors in the drywall. https://goo.gl/Dh1FmZ
  11. Mez

    Refoam AR-9 woofer

    I am not sure I will replace the Masonite rings. First, I'd have to buy new surrounds to replaced the ones I just installed. Second, I'd have to cut the rings from Masonite.e Third, they sound really good now. I cranked them way up yesterday, and didn't hear anything wrong and the bass was outstanding. So not sure what I'd gain by adding the Masonite rings other than appearance.
  12. djcheung

    AR-3A Restoration Project Questions

    Hi Adam, Have you checked to make sure that the inside of the pot actually connecting to the outside terminals ? It has happened to me on one occasion after cleaning the pots, they look perfect, but the middle terminal somehow separated slightly from the metal disc inside. I had to put a bit of solder to make good contacts. Congratulations on getting the AR3a as I know they are hard to come by in the UK where I am also located.
  13. RickB

    AR-3A Restoration Project Questions

    Lpads would in my opinion be the best way to go, save the pots. They may be repairable-pictures please.
  14. RickB

    How Long Have You Owned AR Speakers?

    Hmmm. My first set were AR2xs for my second system in 1967 sold them in 1968. Next system AR2axs still have them, now along with 2 sets of AR3as another set of newer style AR2axs and a set of AR7s. And many more of other brands and not enough room to set all of them up-damn it-lol.
  15. thornev

    Bi-wiring a pair of AR-2Ax

    RTally - What we don't know is how these 2 receivers are wired for each pair of speaker outputs. (or do you know the Fisher 500-C and Marantz 2265B?) I assume that each receiver sends the same amp output to each set of speaker outputs and therefore that would not classify as bi-amping. The Fisher 500-C has 4 power tubes if that helps. The Marantz is solid state. I know I made it sound like I am bi-amping, but the truth is I don't really know. I apologize if I was misleading. Are you're saying that the 2Ax's only need one HOT wire to terminal 2 (the woofer) and the tweeter requires both a common and HOT at terminals 1 and T? Like I said, the 2Ax has only 3 terminals. One other thing... I'm not running the 2 receivers at the same time. I have both of them hooked up to a speaker selector box so I can choose which amp powers which set of speakers. But I have only one of the receivers powered on at any one time.
  16. Hi everyone. This is my first post here. A little bit of background on how I ended up here... I’m 32 years old and have been fascinated (obsessed) with hifi since a young age. I’ve had all manner of equipment over the years and have just started to venture into vintage gear. I restored a pair of AR4-xa speakers a couple of months back and was so impressed by the sound of them that I wanted to see what else AR did. This has led me to a pair of AR-3a in need of work. The pair I have were acquired from a guy who had refoamed the woofers. He said the sound was muffled on the speakers. I took a punt on them after doing a bit of research, and deduced that the pots were the problem. Upon getting the speakers to my house, the first thing I checked was the woofers for coil rub. One woofer was absolutely fine, but the other made that dreaded rubbing sound when pushing it in. I’m hoping this is just down to a bad refoam job, as when you push it slightly off axis, the coil rub is gone. So the plan here is to refoam this woofer. I then fired them up and low and behold, the mids and tweeters were making no sound at all. Upon messing about with pots, I managed to get sound out of the midrange, but not the tweeter. Both pots were obviously faulty, as you could twist them right the way around My next job was to attemp to clean the pots. I opened them up and they were obviously corroded. I cleaned them up with some wire wool and contact cleaner. They looked visually okay to me. Wired everything back up and played some music. I only had sound through the tweeter, and it was intermittent when rotating the pot. The mid made no sound at all (this was the other speaker to the one I had previously tested with the intermittent mid), but I didn’t test whether it worked before cleaning the pots. I then removed the drivers from the cabinet and tested them off of a low level signal from my amplifier. All drivers played okay. So either the pots are no good, or there is an issue with the crossover. O am either going to replace with L-pads or try and source the correct pots. How do the L-pads affect the sound compared to the pots? Also, another issue I have is that I stupidly snipped off the copper wire from the mid to the tags on the front wired terminal thing. I didn’t realise the wire was wrapped around the the tag, and was struggling to remove, so I just snipped it off. Problem now is the wire is too short to reach the terminal. What can I buy to reattach the wire to the tag? I guess it is some sort of copper braided wire? For clarity, I live in the UK and my pair are the standard AR-3A with the European cabinet. Thanks everyone!
  17. RTally

    How Long Have You Owned AR Speakers?

    How long have you owned AR speakers? About 26 hours. I just bought a pair of AR-2ax speakers from the son of the original purchaser. I think it is $80 well spent. They are the early version with the cloth surrounds. How do they sound? They sound terrible! After I clean up the pots and recap them, I will have a more informed impression, though. 😀
  18. RTally

    Bi-wiring a pair of AR-2Ax

    What you describe is bi-amping, not bi-wiring. Bi-wiring is when you run two sets of wires from the speaker to a single amp/receiver. With bi-amping you have one amp/receiver driving one set of drivers and a second amp/receiver driving the other set of drivers. It sounds like you have both the Fisher and the Marantz running at the same time using the passive crossover in the speakers. I assume you have the bass driver (terms 1 & 2) connected to one receiver with a pair of wires. Then you have a third wire connecting the tweeter (term T) to the plus speaker output of your other receiver. Because your receivers have a common ground and you are connecting them together by sharing the same input signal, your speakers work. But the negative speaker output from the receiver connected to the tweeter is flowing through something that does not normally see speaker power. The idea behind bi-amping (and bi-wiring) is to have the speaker current carried by independent wires between the amps/receivers and the speaker drivers. In your case, the tweeter receiver has the current for the tweeter common flowing through a non-traditional path. That non-traditional path may be the chassis ground connected by your power cords or it may be the shields of your interconnect that ties the two receivers together. Don't do that. Your tweeter amp/receiver needs to have two wires for each channel connected to the tweeter circuit. You should connect a pair of wires for each channel to the tweeter (terms 1 and T). PS: Wiring two amps/receivers to the AR this way will fry an amp/receiver that does not have a common ground. Fortunately for you, it worked out.
  19. Last week
  20. der

    How Long Have You Owned AR Speakers?

    I guess I responded to this once before. But, 49 years. AR3a - listen to them to this day. der
  21. 12naits

    AR 93 EQ blown tweeters

    I have bought a VERY ceap set of AR 93 EQ, with blown tweeters. I am looking for replacement tweeters and it whoud be useful to know if there is something I need to do with the crossover. Here is a cite white the specs of the speakers: http://audio-database.com/AR/amp_speaker/ar-93-e.html I can contact the original owner of the speakers if it would be useful, he confirmed that the tweeters where blown.
  22. thornev

    Bi-wiring a pair of AR-2Ax

    bfastr... I think what you say about the common being shared is what's going on in the AR 2Ax because I get good sound out of the highs and lows. The 2 amps I'm using to drive the speakers are Fisher 500-C and Marantz 2265B. Both of them have outputs for 2 pair of speakers. I doubt they are 2 separate amps. They're probably the same single amp sending the same signal to both speaker outputs. I was worried that I might be doing damage to the amps by wiring this way, but so far it looks like everything is fine. I'll try measuring at the speaker outputs to see what I get. If anything is different I would expect it would be the impedance in that I'm driving the speakers individually now instead of as the drivers tied together through the internal crossovers. In other words I worry that I'm drawing twice the power from the amp because of sending the 2 sets of speaker outputs to a single pair of speakers that are setup to be bi-amped (they have the bar that connects the highs and lows). Thorne UPDATE: I checked the commons on all speaker outputs and there is continuity between them. Since they share a common, I apparently don't need that 22nd common that dangles on the back of the AR-2Ax. Is impedance perhaps a problem i.e. the hi and lo in each speaker may be drawing twice the power from the amp? Since they have an internal crossover, maybe each driver draws only what they need?
  23. Nes

    Need Help

    Hi JKent, Starting a new restoration project, this time a pair of AR6 speakers. Do not have the original tweeters, I need your opinion about the best replacements, since I should buy 2 new ones, and if possible the crossover plane, I appreciate your comments, greetings from Argentina
  24. bfastr

    Bi-wiring a pair of AR-2Ax

    I think it depends more on the amp or amps you are using to do this. are both outputs from the same physical amp? if so it may share a common "common". do you have a simple DVM? (volt/ohm meter) with the amp off check to see if there is continuity between the two outputs "common". if you do then only one common wire will be needed. If you are using two physically separate amps it will depend on the amp. if its two diff amps and the second common is hanging in space then as Frank says , that amp is doing nothing for you. maybe if they are the same brand amp they will play nice and allow you to stack the commons. or maybe the common is shared thru the ground wire of the amp, although this is a poor way to return to the amp, but at least you could then stack common wires. try pulling the woofer hot that is fed by the amp feeding the common. do you still hear the mids and highs? you may be able to stack the separate amp commons without a problem since the speakers are now isolated inside the cabinet , but I cant say that for sure.
  25. newandold

    Restore Allison 9s?

    A nice pair of Allison 9 listed this week before Thanksgiving (2018) EBay Bill
  26. Mez

    Refoam AR-9 woofer

    Mine do not have the Masonite rings. Damn it....
  27. frankmarsi

    How Long Have You Owned AR Speakers?

    Holy bat guano Robin! drumplex, you may be a senior member in terms of ownership, and that's terrific. What I'm implying is that if you care to, you could start a thread describing when, the how's, and the why's and also include your listener perceptions about each change. Speaking for myself, I've been a dedicated AR fan/listener for many years also. I made only a single change over from 3a's to LST's and unless I make a complete upheaval of the entire set-p as I presently have it, I'm pretty much settled-in. If I would make changes, it'll require bags of money and I'd enter the bigger leagues of high priced stereo ownership and cast aside the vintage stereo hobby shackles to enjoy the loftier plains of 'High-End' audio. I've purchased 3a's 1972 but, lately, I'm thinking it may have been actually sometime in 1971, small matter. I still have the first 3a's however, I don't use them presently due to a pressing matter called LST- itis. Though the aliment didn't stop me from buying two more pairs of 3a's. The frenzy continued afterwards when I purchased another pair of LST's in 2008 and a pair of AR-9's in 2014. Though I did buy a good looking pair of 4ax's in 2007, I haven't listened to them, I bought them out pure owner gluttony. That model was my first 'hearing' of AR speakers back in the early 1960's, and my introduction to 'better' a sound quality. In a fit gluttonous rage, I just had to have them. Audio doctors said I also have a case of 'The Old Lady in the Shoe' syndrome because I have so many AR speakers, I just don't know what to do. I said to him; "that's preposterous!" I'd demand a second opinion, he said; "O.K., you're ugly too" Yes, I like the 9's and the 3a's (how could I not?) but, I'm most enthralled with the LST's, who wouldn't be? One doesn't know what it's like until they're set-up properly and in turn, flooded with high-power, a high resolving front-end, quality MC cartridges and of course clean vinyl. In my long-term experience of being an avid AR speaker person, when the LST's first came out in 1972 anybody who's somebody in their heart knew they desperately wanted a pair, there's no denying that fact. Generally speaking, back then, $1,200. for a pair was not in the make up of'John Q. public. I certainly didn't have the wherewithal as I was only able to dream until one day, they fell into my hands. Now, as the expression goes; you'll have to pry them from my cold dead hands. They've been with me since '87 and they'll be with me forevermore. Unless, unless, I fall into the desire of modern high-end.
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