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Фрагмент инструкции
The system can be configured as a iriamp system or as a biamp system using the internal mid/ high passive crossover.1' This compact system features high sensitivity, high output capability and point-source alignment, together with excellent directivity control down to 800 Hz. The coverage at 1,000 Hz is 80° horizontal by 75° vertical, and the system's nominal coverage is 60° horizontal by 40° vertical. The horn-loaded bass section extends the low-frequency response to below 60 Hz, or lower if multiple units are used. The DTS-640 consists of two 381-mm (15-inch) high-power, low-frequency drivers with a coaxial mid-/high-frequency section consisting of a high-cfficiency 254-mm (10-inch) midrange driver together with a 25.4 mm (I -in.) neodymium compression driver. Both drivers utilize 60° x 40° constant-di recti vity horns. Electrical connection to each driver is made by large scrcw terminals able to accept up to 10-gauge wire, or two parallel, 8-pin female Neutrik Speakon® connectors. The system should be used with the Altec Lansing 2400A digital loudspeaker processor. The recommended crossover frequencies are 210 Hz and 1.6 kHz. The enclosure is constructed from 19-mm (0.75-in.) 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-640. 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 16-gauge black, powder-coated steel and is backed with a weather-resistant foam. The DTS-640 can be used individually or in arrays to create compact, high-output and di-rectivity-controlled systems for use in churches, auditoriums, hotels and civic centers. Architects’ And Engineers’ Specifications The loudspeaker system shall be of the three-way, all-hom-loaded type consisting of one 381-mm (15-in.) high-power woofer together with a 254-mm (10-in.) Duplex® loudspeaker with a coaxially mounted 25.4-mm (1-in.) neodymium compression driver loaded with a 60° x 40° constant-di recti vity horn. The system shall be capable of being biamped. (using the internal passive crossover), or triamped'’. The loudspeaker system shall meet the following performance criteria. Power handling shall be 400 watts of pink noise with 6-dB crest factor, bandlimited from 60 Hz to 210 Hz, and 350 watts bandlimited from 210 Hz to 20 kHz. Frequency response shall be smooth and uniformly usable from 60 Hz to 20 kHz. Pressure sensitivity shall be 103 dB SPL when measured at one meter on axis with one wall of bandlimited pink noise from 60 Hz to 20 kHz. The enclosure shall be constructed of 19-mm (0.75-in.). 14-ply birch plywood and shall be heavily braced and lined with sound-absorbent glass wool. The enclosure shall be finished in a textured black paint and a removable black metal grille shall be provided. The dimensions of the enclosure shall be 838 mm (32.8-in.) high by 498 mm (19.6-in.) wide by 498 mm (19.6-in.) deep. The loudspeaker system shall weigh 41.8 kg (92.0 lb). The loudspeaker system shall be the Altec Lansing DTS-640. 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 statemeni(s) 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 Altec Lansing DTS-640 Duplex® Loudspeaker System Altec Lansing DTS-640 Duplex® Loudspeaker System Limitations: The Limited Warranty does not apply to: (a) exterior finish or appearance; (b) certain specific items described in the individual product-line statement(s) below, or in the individual product data sheet or owner's manual; (c) malfunction resulting from use or operation of the product other than as specified in the product data sheet or owner's manual; (d) malfunction resulting from misuse or abuse of the product; or (e) malfunction occurring at any time after repairs have been made to the product by anyone other than Mark IV Audio Service or any of its authorized servicc representatives. Obtaining Warranty Service: To obtain warranty servicc, a customer must deliver the product, prepaid, to Mark IV Audio Service or any of its authorized service representatives together with proof of purchase of the product in the form of a bill of sale or receipted invoice. A list of authorized service representatives is available from Mark IV Audio Service at 10500 W. Reno Avenue, Oklahoma, OK 73127 (800/845-8727 or FAX 405/577-3274). Incidental and Consequential Damages Excluded: Product repair or replacement and return to the customer are the only reme...