User manual ALTEC LANSING 15560A TRANSFORMERS

[. . . ] (203 mm) Duplex® ceiling speakers equipped with premium, low-insertion loss transformers. The SLC308-8T features Altec's best selling CD308-8T component. (203 mm) Duplex® component rated at 16W AES / 64W peak power handling. The 8 watt 70V/100V transformer has a broadband insertion loss of < 0. 6 dB from 50 Hz to 15 kHz. [. . . ] The CD308-8T is installed in a round, metal, dampened 0. 25 cubic foot enclosure with metal strain relief strap. Three metal dogleg arms are screwed-down to secure the enclosure to the included metal tile bridge. An off-white one-piece metal décor grille snaps into the assembly. The SLC308-8T has a two-wire NET WEIGHT 8. 5 lbs. (3. 86 kg), one speaker system with grille SHIPPING WEIGHT Depth: Length/Width: 31. 7 lbs. (14. 38 kg), (includes 2 speaker systems with grilles and tile bridges) CD308-8A ­ THEILE-SMALL PARAMETERS Free Air Resonance, S: Equivalent Volume Compliance, VAS: Total Q, QTS: Electrical Q, QES: Mechanical Q, QMS: D. C. Resistance, RE: Peak Linear Displacement, Xmax: Reference Efficiency, o: Phone: 405. 848. 3108 Fax: 405. 848. 3217 92. 2 Hz 0. 84 ft. 3 (23. 7 l) 0. 87 1. 05 5. 26 8. 0 ohms 0. 05 in. Wilshire Blvd. , Suite 362 Oklahoma City, Oklahoma 73116 www. altecpro. com INSTALLATION AND WIRING Although the SLC308-8T can be mounted into a sheetrock or plaster ceiling, the following installation procedure is intended for suspended tile ceilings. Note: We recommend that you order the mounting ring (SLC-RING), not included, when installing the SLC308-8T into a sheetrock or plaster ceiling. Place ceiling tile, finished side facing up, over the flat, 12 in. (559 mm) diameter opening of a container such as a Rubbermaid® 32 gallon Brute® model 2632. The switch shall terminate the two 18 gauge input wires directly to the nominal 8 ohm impedance of loudspeaker component, or indirectly to the loudspeaker component through a step-down, multi-tap 8W transformer. This transformer shall have an insertion loss of < 0. 6 dB. The loudspeaker component, switch and transformer shall be assembled into a moisture resistant black-painted steel enclosure with internal damping material. The enclosure diameter shall be 9. 31 in. (236 mm), the enclosure's baffle diameter shall be 11. 75 in. (298 mm), and the enclosure's depth shall be 7. 85 in. The loudspeaker system shall include a 12. 75 in. (324 mm) diameter, one-piece, snap-on, off-white-painted steel grille; and a 23. 75 in. (356 mm) wide, 20 gauge galvanized steel tile bridge. The loudspeaker system shall be the Altec Lansing Professional model SLC308-8T. Frequency Response 110 100 dB SPL (ref: 20 Pa) 90 80 70 SPECIFICATION NOTES 1 60 20 50 100 200 500 1k 2k 5k 10 k 20 k Frequency (Hz) 2 3 4 5 6 7 The frequency response of the loudspeaker system is measured at a distance of no less than 3 meters to obtain full range data. The level is then corrected to be equivalent to a 2. 83 V 1 m measurement. [. . . ] The data is measured and level corrected in a manner consistent with note 1. The power handling capacity of the loudspeaker system is tested using a full range form of AES Standard 2-1984. The test stimulus is band limited (40 Hz ­ 16 kHz) pink noise with a 6 dB crest factor. The applied RMS voltage is determined using the minimum impedance of the system. [. . . ]