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Resumen del manual
The DTS-215 is intended to be used as a subwoofer or high-power woofer system to complement the performance of the DTS-640. but may also be used as the low-frequency component in most multi-way loudspeaker systems. The DTS-215 consists of two ALX15-LF 381-mm (15-inch) very-high-power, very-long excursion, low-frequency drivers, each mounted within its own vented chamber of 2.4 cubic feet, optimally tuned to provide unequalized low frequency response to below 60 Hz. When used with the Altec Lansing 2400A controller, the low-frequency performance will be extended to below 42 Hz. The new ALX15-LFdrivers have an extremely stiff cone and newly designed magnet system, providing more than 11-mm (0.433-inch) of linear peak-peak excursion and over 30.5-mm (1.2-inch) of maximum peak-peak excursion. Two configurations are recommended for use with the DTS-640. When used as a subwoofer with the DTS-640, a crossover point of 80 Hz is recommended. When used as a high-power woofer array, the DTS-215 may be operated in parallel with the DTS-640’s woofer, providing an extremely high-power array with significant directionality at a crossover point of 220 Hz. When used with other full-range speaker systems, higher crossover frequencies may be used depending on the desired polar pattern. Each driver in the DTS-215 may be independently connected by large screw terminals able to accept up to 10-gauge wire or by two paralleled 4-pin female Neutrik Speakon® connectors located on the back of the enclosure. With this configuration, the DTS-215 is a biampable system utilizing two channels to drive each 8 ohm load separately, with the option of wiring the drivers in parallel outside the enclosure for a single amplifier channel into a 4 ohm load. The system is supplied with external jumpers paralleling the two woofers as the standard configuration. The system should be used with the Altec Lansing 2400A electronic controller. The recommended crossover frequency is 80 Hz in subwoofer mode, 220 Hz as a high-power woofer system arrayed with the DTS-640, or up to 500 Hz as a woofer system in most multi-way loudspeaker systems. The trapezoidal shaped enclosure is constructed from I9-mm (0.75-inch) thick, thoroughly braced 14-ply birch plywood lined with sound-absorbent glass wool. A complete four-point hanging system is provided for safe suspension of the DTS-215. The system may then be hung as a single unit or as part of a cluster. The finish of the enclosure is textured black paint which can be painted to complement any interior. The grille is constructed from black 16-gauge powder-coated steel and is backed with a weather-resistant foam. The DTS-215 low-frequency loudspeaker is the ideal companion system to the DTS-640 whenever high-output, full-frequency-range material must be reproduced in churches, auditoriums, hotels and civic centers. Architects’ and Engineers’ Specifications The loudspeaker system shall be of the dual subwoofer type consisting of two 381-mm (15-inch) high-power woofers in a vented enclosure. The system shall be capable of being biamped using the connectors located on the rear of the enclosure. The loudspeaker system shall meet the following performance criteria. Power handling shall be 1,000 watts of pink noise with a 6-dB crest factor for two hours and 800 watts for eight hours. Altec Lansing DTS-215 Duplex® Loudspeaker System Altec Lansing DTS-2 15 Duplex'" Loudspeaker System band-limited from 35 Hz to 500 Hz with the Altec Lansing 2400A controller.3 Frequency response shall be smooth and uniformly usable from 42 Hz to 500 Hz (60 Hz to 500 Hz without 2400A controller). Pressure sensitivity shall be 98 dB SPL when measured at one meter on axis with one watt of band-limited pink noise from 42 Hz to 500 Hz. The enclosure shall be constructed of 19-mm (0.75-inch) 14-ply birch plywood and shall be heavily braced and lined with sound-absorbent glass wool. The finish of the enclosure shall be textured black and a removable black metal grille shall be provided. The dimensions of the enclosure shall be 833 mm (32.8 inches) high by 498 mm (19.6 inches) wide by 498 mm (19.6 inches) deep. The system shall be trapezoidal with a 10 degree angle and a rear width of 330 mm (13.0 inches). The loudspeaker system shall weigh 38.6 kg (85 lb). The loudspeaker system shall be the Altec Lansing DTS-215. Uniform Limited Warranty Statement Altec Lansing products are guaranteed against malfunction due to defects in materials or workmanship for a specified period, as noted in the individual product-line statements) below, or in the individual product data sheet or owner’s manual, beginning with the date of original purchase. If such malfunction occurs during the specified period, the product will be repaired or replaced (at our option) without charge. The product will be returned to the customer prepaid. Exclusions and Limitations: The Limited Warranty does not apply to: (a) exterior finish or appearance; (b) certain specific i...