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Giorgio AR

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About Giorgio AR

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    Advanced Member
  • Birthday 12/29/1962

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  • Location
    Trieste, Italy
  • Interests
    HiFi, Acoustic Research speakers,old motorcycles and cars

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  1. Thanks David, your answer I think will give a good grade to the Midwest tweeter. My curiosity is to know if it can also be used as a substitute for the AR3a tweeters (since the tweeter is produced in China, my hope is that the paper dome can also be reproduced, as Tonegen did in the 1990s AR3a Limited tweeter). As you know, finding the original AR midranges of the various years is quite easy (apart from the prices that vary on average upwards), but the biggest difficulty is finding AR3a tweeters that sound like new, so the "magic" of the AR sound can come back! Giorgio
  2. Kent and Genek gave you great inputs! I also agree on weighing the amount of insulation on the untouched speaker and replicating with the same amount in the non-full speaker. Regarding Kimpac, my advice is to use hospital caps (excuse the difficulty of translation, but they are used in intensive care and operating room in hospital), I think easy to find by enterprising Chinese for a few cents. They are elasticized in the suburbs, well adherent to the baskets, as you see in the photos, light, of minimal weight and volume and permeable to the air, not to fibbre !! In the photos I have attached, the cap is in the back of a 12" woofer (of my AR LST) and they are perfect as a diameter! Giorgio
  3. Hi David, I don't know the qualities and the differences between the W. and M. sold by Simplyspeakers (in my opinion it is easier that the mid dome is similar to performance and easily interchangeable with the original AR), I think that for the woofer there are many differences with respect to the original (Luigi Fedele and Roy seem to me to have already given a judgment noting many differences between the two types of woofers: coil resistance, type of cone paper and different stiffness of the spider ...). I really care about your judgment on the tweeter: in which AR speaker did it replace the original? Has it been replaced without crossover modifications? was it also tested on AR3 / AR3a and what impressions did you get? I think many passionate ARs are waiting for your feelings !! Good listening Giorgio
  4. Thanks to an Italian living in Berlin, Germany, I came into possession of this 4-page catalog of January 1965, it was a gift from a good person to a fan! . In addition, the price list is also attached. The best thing is also the same 4-page catalog, dedicated to the Italian market and translated into my language in the USA !! So there are small ingenuities and translation errors (like my texts helped in the English translation by Google translate!) Attached first the photos of the catalog in the original language, then in Italian translated and finally the price list. Giorgio
  5. Hi Bill, you have made a good purchase anyway, if the woofer coil is burnt out, I think that even if you can replace it (it is difficult to recover the original spider, this is also important for the final sonic result), it will not be matched with the other woofer. Publish the photos (correctly resized) of the speakers and especially the woofers (both front and back, after at least the non-functioning one). AR4x or later woofers are often found at very different prices: from around $ 20 to even $ 100 and up !! In this case patience, maybe a long waiting time will make you find the woofer closest to the one working by type, paper color, basket and magnet, not least a coil resistance value next to your working woofer. If you want a temporary and faster solution, I recommend the 200001-1 (-2 -3 etc) woofer, called by AR "universal woofer" and destined in addition to AR speakers AR18 - AR17 and other speakers from the 70s and 80s, as a replacement for all the old AR production. There are other possible substitutes with ceramic magnets that can be used with AR4x and by scrolling through the forum pages you will find a lot of information and suggestions for compatibility and types (initials or labels) of possible substitutes. Last but not least the AR4xa woofers, very similar, if not equal to those of the AR4x (if paper type is the same color, probably the only aesthetic difference will be the cloth surround mounted above the cone, not below as in AR4x, but not always!). I am attaching three photos: the first shows a woofer of my 1969 AR4x, the second of my AR4xa from the early '73 and the AR4xa 36/73 with a woofer very similar to the AR4x. Giorgio
  6. I sell rare, single foam grille for AR18, well preserved and with minimal and inevitable defects. These grilles, if exposed to the sun or located in damp environments, had a limited duration due to the deterioration of the foam over time. This grille is excellent despite its 41 years of age (the AR18 speakers to which the grid belongs are from 1978). The last photo shows the difference in size with the grille of a Cizek Model2, and we note that the AR grid is black, while the Cizek is brown (some members had doubts about the true color of the grilles AR, although slightly discolored by time, the grilles AR are black). I request 20 euros plus postage Giorgio
  7. If your friend has only "removed" the white glue arround mid range speaker, and the mid. it worked, it is backed up exactly in its place, the speaker returns intact. Find many tips on how to successfully restore the speakers, although from the photos I've seen, the speakers should be ok. Giorgio.
  8. 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
  9. 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.
  10. I'm looking for a couple of 200005 / 200005-1 AR tweeters for a friend of mine. There is a pair of late AR7s without tweeters they would thank! I enclose, to give an example the photos of two of my tweeters, of different years (in use on one of my pair of AR speakers), if possible the tweeters required should be matched. I am located in Italy and the cost of tweeters should not be very high if possible. Thanks for your help Giorgio
  11. Thank you ra.ra for the answer and for the very understandable explanation: you dated 3 years of construction, it is likely that the production was Dutch. Apart from my couple, I don't remember seeing AR4x late with low serial numbers, only original early AR4x.
  12. Hi, I illustrate this pair of my AR4x, produced at the end of 1969 (as written on the woofer magnets, dated 46 69 and 47 69). There is a week of age difference between the two woofers, both have a foam ring on the cone (which is very rare, I think I only saw another pair with this ring on the cone). The serial numbers (which should be close to about 300000) are identified with AR4x Hfa 006195 and Hfa 00750 .. (the last two numbers are illegible) Why is the numbering not progressive, as usual? Perhaps this numbering is exclusive for AR4x with ring on the woof The photos illustrate: the speakers with grilles, speakers without grilles, back of the speakers, the two labels with the model and serial number, the woofer magnets
  13. Frank, I forgot: my Lenco cartridge is a common, cheap Excel ES-70s that discreetly plays vinyl.
  14. Frank, here you can hear Acoustic Research AR4xa (in sound conditions as per the Acoustic Research specifications of the time) coupled to a McIntosh Mac1700 receiver and a small portable Scott reader; next to it, the turntable Lenco L70 1962 year! is barely visible, not in use for the movie. It's a vintage pairing, I would say classic: no pretense of a top system, but the Mac1700 is very good (it has a Tuner section even higher than the McIntosh Mr77 tuner which I also own and can therefore compare). As this small system ages, it is contemporary to your double ARLST GREAT sistem! The Mac1700 receiver with AR4xa would look good in a small studio, with the speakers and turntable in a special library. I am attaching two photos of my Lenco L70 , performed long ago, note the Audio Products logo with which he was relabeled at the time by the combo manufacturer with the Lenco turntable on top, the second photo shows the turntable, along with the tube amplifier in the original Audio 100 cabinet!, I hope you appreciate a simple and robust Swiss turntable. Giorgio 20190624_122921.mp4
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