Bin
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On 9/11/2019 at 9:12 AM, GD70 said:
I agree with Tom.
Regarding their performance, I can almost guarantee they are no where near new performance. Yours look completely original.
The mids are the big problem, which is very common. The flexable sealer around the base of the domes is now close to 60 years old, and most likely rock hard. This keeps the dome from moving, greatly diminishing their sound output. They can possibly be restored by Roy C., but you'll need to remove them from the cabinets and ship them to the U.S. The tweeters usually fare better, but often the dome has started to pop out from the VC gap, again pretty common. They can also be repaired here by Chris, who replaces the little foam dots, and reseals the dome at the base. The third issue is corroded pots, which increase or decrease the mids and tweeters output. Often they have dead spots causing no sound to come from the drivers. They can be opened up, cleaned, and possibly reused if the disks are in good condition, and the pot wipers tips don't have holes, or are completely corroded away.
I don't intend to scare you, but just give you the facts about these old speakers. I have 2 pairs of the 3's, one 1965, and also from 1960.
The 1965's have been restored and sound fabulous. The 1960's were restored, but the mids will need Roy to restore them.
These are special, and if you are serious about restoring and keeping them, then I suggest restoring them properly, they are worth it!
Good luck!
Glenn
Look through the thread "Stopped for toilet paper, found some AR3's" thread. These are mine, and have lots of pics of the restoration which should be helpful for you to see what's involved.
Dear Glenn
appreciate for your details information
by the way, could i ask for what’s kind of material made in front terminal strip ( aluminum or plastic or any kind?) I would like to ask because I tried to re-connect aluminum lead to that terminal but it doesn’t work. Should I remove that terminal strip and connect the lead directly?
in the second picture, I saw the yellow dots is very little, I don’t know whether it’s normal or abnormal things compared to 3rd picture which you can see the yellow dot is much bigger??
sorry as i’m really newbie and need the support,
thanks a lot
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Dear members,
i have pairs of ar3 speakers with tweeters and mid-range have aging and less elastic “yellow dots” . I know this is because speakers were produced from long time ago.
I would ask if anybody can help to advise how to recover elastic of these dots or any alternative glue can be applied to bring it back with ultimate operations as it had.
i would wait for your advice with thanks
some picture below
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Hello,
could someone can help to tell me what ‘s kind of these speaker wooden?
What’s production time could be for those speakers?
is there any ar3 series could be made before this or not? And how quality of such speakers up to now? Should I send them to clean or restore anything to make sounds close to production time as much as possible? ( now they are still working )
thanks for your advice
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Dear Tom and all
it would be very nice to see your comment . Now, I’m coming back to happiness with good ar3 pairs appearance .
Thank a lots
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Today, i found a interesting on guarantee sheet stick behind cabinets without any signature by tester and inspector for both speakers as it should have.
Does it any sense for you?
link: https://xfl.jp/pKq2fe
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19 minutes ago, Giorgio AR said:
The cabinets are true, the speakers are original (all 6 speakers), the labels are real, the numbers are serial: if originally there was no number, the AR3 would still be serial (both labels, originally without number!) , the cabinets with 2 different finishes, as Tom T. teaches is also a common thing: both built in the same period, I see nothing but a nice pair of early AR3, almost certainly sequential and matched.
I have the same opinion as Genek, in my opinion (he sends two detailed photos of the complete labels) even the numbers on the labels could be made in the factory, beyond the normal numbering.
Giorgio
That’s a confident explaination for me. Thanks a lot for that.
i have a small question when you said “..even the numbers on the labels could be made in the factory, beyond the normal numbering...”. Could it means ar factory have another internal running number beside the serial number before ship out to customer?
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4 hours ago, genek said:
From the condition of the white labels, if someone did change the serials, it would have to have happened quite a long time ago.
Thank you Genk.
Why I posted here is I really need your well-known on Ar speakers than me to clarify these speakers have any fake issues or not. Since I have to pay usd3,500 and get back for something going wrong then better I have to return it.
From my last pictures upload links. I suspect that all drivers have been put in later cabinets even you can see wax- capacitors was replaced by oil-capacitor as the wax-capacitor positions and holder still there. From last picture, I found the oval-hole inside of cabinets that someone try to hide it by earlier terminal strip..ect...
@tysontom Do you also think this is a potential fake?
Very much thank you all for support me to clarify this...
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12 hours ago, tysontom said:
Clearly the serial numbers are incorrect (and the date-stamp font is also incorrect along with the absence of the "C" in the serial number) for some reason, but I don't know why this would be unless the original serial numbers were pretty far apart and the seller felt that this might detract from their value, which it really won't. Consecutive serial numbers in AR speakers really don't mean anything, and it's fairly rare and usually "coincidental" that two have consecutive numbers. Serial numbers far apart do have significance with regard to components, crossovers, etc., but these two appear to have been built pretty close together. Send some pictures of the two speakers with their grills off, side-by-side. Also, pictures of the other crossover, if possible.
These AR-3s are definitely early versions, likely dating to 1960-61. If you look at any of the drivers (the midrange or tweeter, particularly but sometimes on the woofer), you can usually find a date stamped on the back plate of the magnet circuit. Try to locate a stamped date. The presence of the oil-filled, mil-spec surplus crossover capacitors (the best kind, actually) clearly proves that these speakers date back to the earliest versions. Someone appears to have changed the level controls, however, as they don't look original to the AR-3. Woofer details are also present that show the orange surround color (before AR added lamp-black to the treatment), the damping ring around the outside of the woofer cone just inside the surround, and that sort of thing. The woofer has the Gen 2 cone annular rings and foam damping rings, which came about a year or so after the introduction of the AR-3, probably late 1960 or early 1961. The terminal strip is early, too, as mentioned before. I'm thinking that the original serial numbers for these speakers would be something in the C 04500 to C 07500 range or so.
If both speakers work properly, then you're in fine shape with only the fraudulent "sequential" serial numbers and the wrong grill cloth material and relatively crude "3" pins. It doesn't appear that any drivers have been changed from the pictures you show, but I haven't seen both speakers. Look on the woofer magnet back plate to see if you can find a date stamp.
--Tom Tyson
Thank Tom Tyson
i attached more pictures. Seems i didn’t find any date stamped on tweeters and woofer.
one thing I need your help to clarify since I found a hole inside of cabinet where close to tweeters driver. Are these cabinets same as ar3 later rather than earlier ?
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41 minutes ago, Giorgio AR said:
First clue the type of terminal block for tweeter and midrange cables and the type of midrange (study The AR3 restoration guide).
Congratulations on the wonderful pair of early AR3 in your hands!
Giorgio.Thanks Giorgio. By the way, my friend is asking what’s happen when he remove the white glue arround mid range speaker? Could you help?
thanks
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On 7/18/2019 at 3:12 AM, Liangshan Marsh said:
Congrats you acquired the nice AR-3 speakers with the low serial number, in my own thinking : since the drivers are in original ( likes most of the Vietnamese liked '' cầu nổi, or AR 1 woofer ..) except a part of this pair is fake ,,,,, the serial number ( fake reprint the serial tag, remake the grills,) otherwise all the drivers are in original..
I’m wondering how can you know the pairs is low series number
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Hello Tyson
really appriciate for prompt and details reply
i attached here is the link for more picture
I think the series number should be the fake one as per your findings. But i just curiously why people doing this fake?
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11 hours ago, tysontom said:
The serial numbers for this pair of AR-3s are inconsistent with the physical appearance of the speakers themselves, for some reason. SNs 43896 and 43897 would have been manufactured in the 1964-1965 time-frame, yet these speakers look like 1959-1960 models with their early front terminal strip and the treated-cloth surrounds without the later-added lamp-black treatment for the woofers. How are the cabinets different? With consecutive serial numbers, it would indicate that the speakers were built virtually at the same time. Consecutive numbers aren't particularly rare, but AR speaker were never intentionally shipped out from AR as a "pair" with consecutive numbers. The most unusual thing is the lack of the standard oval-shaped, flush terminal strip rather than the earliest version mounted above the baffle. The serial numbers strangely do not have the "C" in front of the serial numbers. This is unusual, and it's hard to determine what's going on. The drivers are also earlier, but in seemingly excellent, unmolested condition from the one image.
More pictures would be very helpful.
--Tom Tyson
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Hello...
I just bought pair of ar3 speakers as the picture as link .https://xfl.jp/xVW1gw Could someone help me some concerns as:?
1. Looking to front side, which possible production year could be?
2. Looking to series number: is it correct one or fake series number to these speakers?
3. As the series number is closed for both speakers? But the cabinets are different, why?
Thank you very much
Is it Ar speakers woofer
in Acoustic Research
Posted
Dear members,
I just saw these woofers and someone said they are very earlier series ar1 woofers. Could you kindly help to advice ? Do these woofers need to restore for its normal workings
thanks