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User manual Altec Lansing, model AB8500

Manafacture: Altec Lansing
File size: 349.23 kb
File name: 1b2890f8-5145-4406-84c9-b536e6e26e25.pdf
Language of manual:en
Free link for this manual available at the bottom of the page



manual abstract


O LANSING® AB8500 AcoustaBASS™ Low-Frequency System KEY SPECIFICATIONS Components: KEY FEATURES ★ High-Power Handling ★ High Efficiency ★ Extended Response ★ Compact Size ★ Enclosure Allows Refinishing DESCRIPTION System Type: Pressure Sensitivity: (1 w, 100 Hz to 800 Hz, re: 20 |a.Pa, see note 1). Frequency Response: (see Figure 1, Note 2) Power Handling: (50 Hz to 500 Hz, see note 3) Maximum Long-Term Output: (800 watts input, 1 m, re: 20 )j.Pa, see note 4). Impedance: Direct-radiating, vented, low-frequency loudspeaker system. 101 dB SPL. 46 Hz to 3,500 Hz. 800 watts, AES method. 800 watts, EIARS426A. 127.5 dB. 3.8 ohms minimum @ 40 Hz. 4.0 ohms nominal. Two 15 inch (38.1 cm) low-frequency loudspeaker. The Altec Lansing AB8500 is a member of the AcoustaBASS1'1 family of low-frequency enclosures. The AB8500 is a direct-radiating vented design and provides high-efficiency, low distortion and excellent low-frequency performance in a relatively small enclosure. The AB8500 employs dual long-throw 15 inch (38.1 cm) loudspeakers in a 7.4 ft3 (209.5 L) enclosure. The Enviro-board1'1 enclosure is finished in beige with matching fabric grille. Connections are made via barrier strip (#10) recessed into the back of the enclosure on a durable molded connector panel. The enclosure is constructed from Enviro-Board", a composite structural material which is easily refinished (see Finishing Enviro-Board1'1). Enviro-boardIM is made of layered and selectively ori- ented hardwood strands strongly bonded together within a phenolic-resin matrix. The surface is a proprietary vinyl laminate especially formulated for Altec Lansing which can be painted or stained to match any decorative environment. The AcoustaBASS series of low-frequency enclosures are ideally suited for any installation where high-quality sound is required and in permanent installations for houses of worship, auditoriums and arenas. The AB8500 combines well with both the Mantaray® and Vari-Intense series of horns. The enclosures may be stacked for greater output capability or for a narrower vertical beamwidth. Every time the number is doubled, approximately 6 dB in output is gained (3 dB for double power handling and 3 dB for the resultant higher Q). SPECIFICATIONS (continued) FINISHING ENVIRO-BOARD Input Connection: Recone Kit: Replacement Woofer: Replacement Grille: Enclosure: Finish: Enclosure: Grille Cloth: Dimensions: Height: Width: Depth: Net Weight: Shipping Weight: Accessories: Screw terminals (#10-32) on barrier strip will accept 0.4 inch (1.0 cm) wide spade-lug. Model R4500. Model AB4500-RLF. Model RG8500. Vented design for optimum response. Constructed of 0.7-inch (1.8 cm) Enviro-Board™, a composite refinishable structural material. Wood grain, beige. Beige. 34.0 inches (86.4 cm). 24.0 inches (61.0 cm). 20.4 inches (51.8 cm). 108.0 lbs (49.0 kg). 122.0 lbs (55.5 kg). ASK 100 mounting kit. ASK 300 mounting kit. Altec Lansing continually strives to improve products and performance. Therefore, specifications are subject to change without notice. NOTES ON MEASUREMENT CONDITIONS 1. Pink noise signal, one Watt calculated using E2/Zmin, 3.16 meter-measurement distance referred to one meter. 2. On-axis, one Watt calculated using E2/Zmin, 3.16 meter-measurement distance referred to one meter, low frequencies corrected for anechoic chamber error. 3. This system rating patterned after the AES method for individual driver, where the test signal is pink noise with a 6 dB crest factor over the bandwidth of the system, with power calculated using the E2/Zmin, for two hours. 4. This measurement made under the same conditions as Pressure Sensitivity, but at rated power, and takes into account any power compression effects due to non-linearities in the system. 5. The loudspeaker should be connected to the 8-ohm (4-ohm) tap on amplifiers using transformer coupled output sections. 6. Distortion components invalid above 10 kHz. The distortion at any given frequency may be found by graphically taking the difference between the fundamental and harmonic, and adding the number of Decibels which the harmonic has been raised on the graph and apply the formula: % distortion = 100 x 10( dii,1'rence in dB/2(l1 Finishing Enviro-Board" is simple and straight forward as long as a few things are understood: 1. Enviro-Board™ has been tested with a large number of commercially available paints with 100% success. However, it is impossible to test every paint available. Altec Lansing therefore recommends that you test a small area on the rear of the cabinet or under the grille to check there are no adverse effects. 2. Ensure the surface is clean and free of grease (use soapy water if necessary). 3. Any latex-enamel or acrylic-based paint can be used but the high-tech top layer of Enviro-Board1' was developed in conjunction with Pittsburgh Paints. They developed their Manor Hall® Exterior House series of paints to comp...


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