DESCRIPTION AR 3 A VINTAGE 3 WAY SPEAKERS. These speakers are working Yes, they have not been messed with. I have been using them in my system they are great sounding with such presence all what people say they They are close to excellent cosmetics sharp corners they have not been re finished they are original well cared this is the first time grills removed only reason is to have the foam on woofer replaced by a profetional. These speakers are not small and they are a hefty weight I Will take extra care to pack I over pack. Priced according condition exceptional and original. Some info below taken from Web. Acoustic Research AR-3a Specifications. Drive Units : 305 mm (12 in) acoustic suspension woofer, 38 mm (1 1/2 in) midrange hemispherical dome, 199 mm (3/4 in) high-frequency hemispherical dome. Crossover : 575 Hz, 5000 Hz. Impedance : 4 ohms nominal. Controls : Midrange and high-frequency driver level controls. Amplifier : Up to 100 watts per channel. Size : 356 x 636 x 289 mm deep (14 x 25 x 11 3/8 in). Weight : 24 kg (53 lb). Woofer resonance : Free air 18 Hz, in enclosure 42 Hz. Volume of enclosure : 48.2 litres (1.7 cu ft). No loudspeaker by Acoustic Research has been more influential than the original Acoustic Research AR-3 acoustic suspension speaker. The AR-1 had set a new benchmark for loudspeaker technology, but the AR-3 was so outstandingly accurate that experts had trouble identifying whether a recording or a live concert was playing in front of them. Let´s note here, that this is not the AR-3a speaker from 1967. But its prior version from 1958. The AR-3 speaker had been designed by Edgar Villchur, whereas the newer AR-3a speaker was designed by Roy Allison. Even though both speakers are fairly similar, the AR-3 has been a landmark for the loudspeaker industry and had been recognized by the public significantly more than the later AR-3a. History of the AR-3. He AR-3 entered the market in 1958, 4 years after the first ever acoustic suspension loudspeaker, the AR-1 was introduced. Acoustic Research had by then tested a new tweeter design, developed by Villchur, called the hemispherical dome direct radiator tweeter, which was used in the new AR-3 models. Besides the newly invented dome tweeter, Villchur´s loudspeaker also received the AR-1s woofer from 1954, which had been another speaker technology landmark, as it was the first ever commercial acoustic suspension speaker. The result was a speaker that produced music more accurately than any other speaker at its time and is until today one of the highest performing speakers available when measuring accuracy. This outstanding accuracy made the AR-3 speaker famous, and its reputation for being the “most accurate loudspeaker at any cost” led to its usage in many professional settings, such as concert halls or record studios. The reputation for unmet accuracy was underlined by a series of concerts during the 1960ies in which Acoustic Research directly compared a live string quartet with a recorded version of the same music played by the AR-3. Listeners were unable to detect the switch overs between recorded and live music, which supported the already established reputation of this loudspeaker and leaves a great impression as to how accurate this speaker has been. Even after the “improved” version of the AR-3, the newer AR-3a model was introduced to the market in the mid 60ies, Acoustic Research continued to manufacture the original AR-3, by then over 10 years old, until the 1970s. I over pack, I order industrial packing, which costs and I want to make sure your item arrives safe, packing will be more than required. Home use only, kept in home dry environment. 16″x 16″x 27 size of each are some specs that I found online… INTERNATIONAL WITH TRACKING ONLY. WE ARE NOT EXPERTS IN ALL FIELD BUT DO DESCRIBE ALL ITEMS TO THE BEST OF OUR KNOWLEDGE. NO RETURN UNLESS OTHERWISE STATED ABOVE. The item “Acoustic Research AR3a AR-3A vintage suspension speakers excellent condition” is in sale since Tuesday, May 17, 2016. This item is in the category “Consumer Electronics\Vintage Electronics\Other Vintage Electronics”. The seller is “audhifi” and is located in Riverside, California. This item can be shipped worldwide.
- Brand: AR 3 a
- Model: Acoustic Research
- Country//Region of Manufacture: United States