Acoustic Research AR 8B speakers (pair) vintage. These are great-sounding vintage speakers. Classic look, and in good shape. Like all AR speakers, the AR 8B, is an acoustic-suspension model, and it has a newly designed 6-inch woofer that crosses over at 2,000 Hz to a 1-1/4-inch “liquid cooled” cone tweeter. The tweeter presumably uses ferrofluid or a similar material to damp and cool its voice coil. The crossover network has been simplified by designing each driver to have a natural roll-off outside its operating frequency range. As a result, only a capacitor is needed to protect the tweeter against damage from powerful low-frequency signals. The effective crossover slopes are 12 dB per octave for the woofer and 18 dB per octave for the tweeter. The drivers of the AR8B are vertically aligned in a cabinet measuring 14-3/4 inches high, 9-1/2 inches wide, and 6-1/4 inches deep (it can also be installed horizontally). The enclosure is finished in walnut-grain vinyl veneer, and its rounded front edges minimize the boxiness of its shape. The system weighs 10-1/2 pounds. The dark-brown cloth grille is retained by plastic snaps, and spring-loaded input connectors in the rear of the speaker accept the stripped ends of speaker wires. The specifications of the AR8B include a sensitivity of 88 dB sound-pressure level (SPL) at 1 meter with a 2.83-volt input (1 watt into the speaker’s nominal 8-ohm impedance) and a system frequency response with half-power (- 3-dB) points of 74 and 22.000 Hz. The AR8B has no external frequency-balance or level controls. It is recommended for use with amplifiers delivering between 10 and 75 watts per channel. AR speaker series brochure. The item “Acoustic Research AR 8B speakers (pair) vintage” is in sale since Monday, December 20, 2021. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Speakers”. The seller is “guitarcraig” and is located in Framingham, Massachusetts. 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, Sweden, South Korea, Indonesia, Taiwan, South africa, Belgium, France, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Uruguay.
- Brand: Acoustic Research
- Model: Acoustic Research AR 8B