2 x Acoustic Research AR-4xa Walnut Speakers BOTH subs are in working order and one of the two original factory tweeter speakers is in working condition. The non functioning tweeter is in tact but has been pushed in and needs repaired or replaced. Acoustic Research AR-4, AR-4x and AR-4xa Speaker Review, Specs and Price. Acoustic Research Ar-4xa specs speaker AR4 review. If you wonder what the difference between the AR-4, AR-4x and AR-4xa is, here is a short simple answer: It´s all about the tweeter! The AR-4 is the oldest of the three and by now a sought after collectable made in 1964. The AR-4x is its successor and from late 1965 and 1966. The AR-4x has 2 1/2″ cone tweeters, whereas the AR-4 has 3 1/2″ tweeters. The AR-4x received outstanding reviews and is until today famous for its sound quality. Finally, in 1973, the then AR-4xa speaker had been introduced. The tweeters were switched to the 1 1/4 tweeters used in the AR-6 and AR-7. This review targets the AR-4x and AR-4xa, but the differences to the older AR-4 are minor. The 4x and 4xa are 2-way acoustic suspension speakers in beautiful walnut veneer with the typical white Acoustic Research cloth grills. The speaker was also available in unfinished birch and pine. However, as the innovations of the new 4xa were minor, its higher price caused many customers to choose the older 4x. Also, by 1973, AR had its AR-6 and AR-7 placed in a similar market segment. It is therefor sometimes claimed, that the introduction of the AR-4xa was unnecessary, making the speaker redundant. How much should I pay for the AR-4x or 4-xa? You should be aware that a pair of these vintage speakers is likely to have issues with the speaker foam, if they haven´t been replaced yet. Investing in a new foam kit is definetily worth the effort! The woofer resonance of the AR-4xa is 65Hz in enclosure, vs. The 56 Hz of the AR-6. The second difference is the cabinet form. The AR-6 is slightly higher and wider, but 2 inches less deep. The AR-4xa is definetily worth it being refoamed. Many of them have rotted foam surrounds which can easily be replaced. It does not require any particular skill, just a calm hand and a little patience. We tried out several available foams and recommend to use an 8 inch Surround Kit from Parts Express. CAREFUL: The AR-4 and AR-4x have mostly cloth surrounds, not foam surrounds. Only the AR-4xa has foam surrounds. Choose the surround kit on the right, if you are planning to refoam the AR-4xa, but not for the others! Drive units: 8 inch acoustic suspension woofer, 1 ¼ inch high-frequency cone. Impedance: 8 ohms nominal. Controls: High-frequency level adjustment. Amplifier: Up to 100 watts per channel. Size: 10 x 19 x 9 inches. Weight: 18.5 lbs. Woofer resonance: Free air 30 Hz, in enclosure 65 Hz. Volume of enclosure: 18.5 litres (0.65 cu ft). Some noteworthy information is quoted below. The Ar-4xa is the improved version of the world´s most widely used high fidelity speaker system, the AR-4x. The AR-4xa uses the same acoustic suspension woofer as its predecessor, but incorporates a new tweeter and a modified crossover network. The 32 mm tweeter is the same as that used in the highly acclaimed AR-6 speaker system, giving the AR-4xa improved treble response and dispersion characteristics. This quote is from my 1969 Acoustic Research magazine. The Records and Recording Magazine writes Excellent performance a steady frequency response which many more expensive systems would find it difficult to equal this unit, measured objectively, confirmed fully what I expected to find after listening to it with a wide range of programme material. The AR-4x is a loudspeaker of very high quality, made and designed to high technical standards. It is not very often that one finds such a completely successful enterprise as this. Read our other Acoustic Research Reviews. AR LST and AR LST-2 Speaker Review. The item “2 x Acoustic Research AR-4x Walnut Speakers ALL Working. Great Condition” is in sale since Wednesday, June 3, 2020. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Speakers”. The seller is “annava-1471″ and is located in Lexington, Kentucky. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Turks and caicos islands, Bangladesh, Brunei darussalam, Bolivia, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Liechtenstein, Luxembourg, Monaco, Macao, Martinique, Nicaragua, Pakistan, Paraguay, Uruguay.
- Brand: Acoustic Research
- Model: AR-4x