Ar4x acoustic research speakers

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• Acoustic Research AR-4X
• Acoustic Research AR-4X Speakers 1970's Wood/tan grille
• PAIR AR - 4X ACOUSTIC RESEARCH VINTAGE SPEAKERS
• ACOUSTIC RESEARCH AR-4x ORIGINAL AR4x CLASSIC KLOSS VILCHUR LOUD SPEAKERS
• Acoustic Research Speaker Brass Badge AR-4x Logo Tag Nameplate Exact Repro
• Acoustic Research
• Ar4x Acoustic Research Speakers Very Nice Original Restored Condition

WATCH RELATED VIDEO: Acoustic Research AR-4x Speakers

Acoustic Research AR-4X

Forum Rules. Login Register. Remember Me? Forum AV Forums Speakers ar 4x. Results 1 to 2 of 2. Thread: ar 4x. Originally Posted by rodan All times are GMT The time now is AM.

All rights reserved. I owned a pair of 4x's from through If you picked up a pair of the 4x's, I would imagine that they date back to that approximate era. I drove them with a 60 watt per channel continuous IHF rated integrated stereo amp and they would play cleanly as loud as I ever cared to listen at in about a 12' X 18' room a fairly small room.

They, as was the case with all of the original Acousitic Research speaker designs the AR name has been sold several times since , are acoustic suspension sealed box design speakers, so one would expect that a significant amount of wattage would be needed. Curiously, with the first acoustic suspension speakers, the smaller the size, the more wattage that was required to produce an equivalent volume.

The original AR speakers were quite rugged I had also owned a pair of AR2a's and a pair of AR2ax's at various points in time way back when , so I think that it would be safe to just let your ears be the judge.

Assuming that the speakers are in like-new condition an improbable assumption , your ears would give out before the speakers gave out. Also, clean watts rarely blow speakers. What will blow speakers is driving an amplifier to the limit of its capability--particularly solid-state versus tubed amps. So high powered amps are usually kinder on speakers than are lower wattage amplifiers. The problem that you have is the age of the speakers--if we both are referring to the same product. Assuming that the surrounds the flexible ring that connects the outside diameter of the paper cone to the metal basket have not been replaced on the woofers with surrounds made from modern materials, that were properly installed real tricky , and that didn't alter the mechanical charateristics of the woofers, then the surrounds on your woofers are gone or worthless.

The materials used to make the surrounds of most older speakers were destroyed by age and oxidation. The same thing happens to human beings. If you haven't removed the grilles on the speakers and checked out the surrounds, do it now! If they show any sign of aging, they are truly worthless. Frankly, I would be suprised if the surrounds still even exist on your speakers. Speakers don't work without surrounds.

There are some companies that make replacement surrounds for do-it-yourselfers I advise you to punt on that idea that you can find on the Internet and there are companies that do speaker cone and surround replacement if you live in a major metropolitan area, there will be one or more listed in the Yellow Pages.

If you replace the surrounds, let a professional do it. The other consideration is that the electrolytic capacitor s in the crossover network will have degraded so much by now that they probably are shorted or nonfunctional they dry out with time.

If you are new to audio, you need to be aware that the crosover network determines which frequencies are sent to the woofer and which frequencies are sent to the tweeter. The 4x was a two-way design--it has a woofer and a tweeter. The capacitor s need to be replaced with new capacitor s of equivalent value microfarads of capacitance--"mfd" , working voltage should be printed on the capacitor with a WV or WVDC suffix , and type generally only nonpolarized capacitors are used for which replacements are a little harder to find.

Unfortunately, the crossover network is inside the speaker cabinet and the woofer has to be removed to gain access. Also, the inside of the cabinet will probably be filled with some type of dampening material, such as acoustic fiberglass, and care must be taken not to damage that material and to return in to its original location when the work inside is completed.

The AR4x was a nice sounding speaker for its size. If a brand new one could magically appear, it could hold its own the the exception of high frequency extension capability with most speakers of similar size say, for example, in the Polk or Infinity product lines.

The AR4x was quite clean and revealing, as I recall, with accurate, well blended bass not over-emphasized or "boomy" and with not much "doubling" to the low frequency limit that the design allowed. I just doubt that yours are in any kind of condition that would allow them to work. Unless you have some expertise, I suggest that you have them restored by a professional.

And that will be expensive. For the expense of restoring the speakers, you could buy a very nice pair of similar-size speakers from the modern era. On the other hand, the restoration payoff would be that you would have a pair of nice sounding "vintage" although probably not "classic"--an AR1 or one of the AR3 series would be a "classic" speakers from the company that pioneered the acoustic suspension speaker design.

If you took the time to research the original Acoustic Research company, you would probably find it fascinating. I wish you good luck, Rodan! Bluesman P. That excuse should get me off the hook for probable mistakes. Latest AudioReview Articles.

Acoustic Research AR-4X Speakers 1970's Wood/tan grille

Acoustic Research Speakers. Very Rare Acoustic Suspension loudspeakers with a. They are in good condition but the tweeters do not play. AR made some of the better drivers of all time. Speakers produce good sound with all woofers and tweeters operating properly. I have not removed the grilles because they are not intended to be removed and I do not want to damage them.

PAIR AR - 4X ACOUSTIC RESEARCH VINTAGE SPEAKERS

I purchased my second pair of AR4x, like the previous one, this too is of late production the first pair is around the end of ' the date imprinted on the woofers' magnets is and , no other date 'interior of the cabinets; in these woofers there is a damping ring on the cone around the dustcaps , the new pair, has date on the magnets of woofers and , in a cabinet there is a stamp with date The veneers of both should be walnut, but darker than usual the shades differ slightly, however dark. In addition, this numbering difference, I had already noticed in other AR speakers, as late specimens of AR3a and AR7, this in my opinion makes me think that more speakers have been produced than reported by the US numbering!! I hope to stimulate further research and information on AR speakers labels with different numbers compared to the normal USA chronology. In addition to the photos of the two couples, I also include photos of the original capacitors wax box in the older AR4x pair, with values very out of specification , almost 40uF, the Sprague capacitors are still within tolerances, however I have replaced all the capacitors, all now very close to the 20uF of the project these photos are to satisfy Ra. In both pairs, the woofer seat the baffle is in chipboard with sealant gasket, was cracked laterally and was restored by gluing the fractures with two-component glue to guarantee the original seal of the air suspension. Hi Giorgio, that's a fine-looking quartet of AR-4x's you have. My response here will include a little bit of personal documentation along with some conjecture to try to assist with your mystery serial numbers. The original AR-4 used the letter prefix "F" in the serial number identification.

ACOUSTIC RESEARCH AR-4x ORIGINAL AR4x CLASSIC KLOSS VILCHUR LOUD SPEAKERS

Speakers: Two; 8-in. Both are two-way systems, having 8-in. These proportions, besides being practical, are aesthetically more pleasing as well. It is supplied with instructions for hanging and fusing, as well as hook eyes and feet pads.

Acoustic Research Speaker Brass Badge AR-4x Logo Tag Nameplate Exact Repro

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Acoustic Research

LOG IN. But the speaker terminals don't tell me which is positive or negative, there is just the number 1 and 2 above the terminal. Anyone know which is which? Edit Delete. As long as you connect them both the same all you have to worry about is absolute phase, which varies by recording and equipment anyway.

Ar4x Acoustic Research Speakers Very Nice Original Restored Condition

Acoustic Research was a Cambridge, Massachusetts -based company that manufactured high-end audio equipment. The brand is now owned by VOXX. Acoustic Research was known for the AR-3 series of speaker systems, which used the 12 in mm acoustic suspension woofer of the AR-1 with newly designed dome mid-range speaker and high-frequency drivers. AR's line of acoustic suspension speakers were the first loudspeakers with relatively flat response, extended bass , wide dispersion, small size, and reasonable cost.

The AR-4x speakers were made by Acoustic Research sometime in the s or perhaps 70s. This article will research this. Creative Commons Attribution 3. When were they made? What are they worth?

For their age, these speakers are in incredible cosmetic condition. Functional Notes: There are a couple of spots on the tweeter adjustment potentiometers where good electrical contact is a little hard to get right, but otherwise operational condition of this item is excellent, fully tested and no issues found. Product Specifications. For all other locations including Hawaii, Puerto Rico and Alaska, please request a quote prior to purchase. Items with factory packaging will be double boxed. When factory packaging not available re-usable shipping box with custom injected-foam mold will be used. SKU:

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