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Resumen del manual
8-OHM MAX. QTY.4-OHM LOUDSPEAKER PAIRS LOUDSPEAKER PAIRS JUMPER SETTING JUMPER SETTING @1X @2X @4X @8X @1X @2X @4X @8X 8-Ohm 1 2 4 8 0 1 2 4 4-Ohm 2 4 8 16 1 2 4 8 2-Ohm 4 8 16 32 2 4 8 16 1-Ohm 8 16 32 64 4 8 16 32 FEATURES • Provides Precision Level Control in 3dB Increments (Lowest 6 Steps) • 50-Watt Rating Achieves Clear, Stereo Music Reproduction in 8-Ohm Applications • Impedance-Matching Capability of 2X, 4X & 8X Provides Flexibility in System Design • Low Profile Styling is a Favorite for Architects and Designers • 1x Setting Allows Use As A Standard 8. Non-Impedance Matching Volume Control • Decora-Style Plate Available in White or Ivory APPLICATION Superior styling of WhisperTouch controls combined with their fine-tune level capability make them ideal for residential/custom installation and professional applications of all kinds including: private homes, medical and legal offices, dental groups, studios, and high-profile businesses that demand clear music reproduction and precise level control. GENERAL DESCRIPTION WhisperTouch volume controls provide for clear, distortion-free stereo music reproduction when one or multiple loudspeaker pairs are powered by a single amplifier. Model DWT-8 is an 8 ohm device with a decora-style wall plate. Frequency response is 20Hz - 20kHz (-3dB, +0). Attenuation is accomplished in ten steps plus positive off. The first six steps are 3dB for fine tune control at low listening levels, the next three steps are 6dB, followed by one 9dB step and finally one 28dB step before "off". The low-profile knob is pleasant to the touch and adjusts easily. It measures 15.16" Dia. and projects a mere 1.2" for unobtrusive yet functional operation. The control operates smoothly with fine detents and make-before-break contacts for gradual and un-interrupted transition when changing volume settings. High quality units require 12 to 18-gauge wire and terminate with convenient plug-in connectors. Assemblies measure 23.4" deep and mount into a standard 20 cu.in. E.O. Box (by others). Specify plate color: suffix (-I) for ivory or (-W) for white. ARCHITECT AND ENGINEER SPECIFICATIONS Attenuator for stereo, 8-ohm application shall be Atlas Sound WhisperTouch Model _______. Attenuation shall be accomplished in ten steps with a positive off position. The first six steps shall be 3dB, the next three steps shall be 6dB, followed by one 9dB step and one 28dB step for a total attenuation of 73dB. Insertion loss shall be no greater than .5dB. Unit shall mount to a standard 20 cu. in. E.O. box. The wall plate shall be decora-style, finished in ______ (ivory or white) with a matching low-profile knob. FOUR a MODEL POWER INSERTION FREQUENCY PLATE REQUIRES SERIES* RATING IMP. LOSS RESPONSE STEPS TYPE STYLE (ORDER SEPARATELY) WEIGHT DWT-8 50 Watts 8 Ohm .5dB 20 Hz 6 @ 3dB Stereo Decora** 12-18 Gauge Wire & 1 lb 20 kHz 3 @ 6dB 15.16" x 25.8" 20 cu. in. E.O. Box (by others***) (.45 Kg) (-3dB, +0) 1 @ 9dB 1@ 28dB (11 Steps Total, plus "off") * uffix model with color: ivory(-I), white (-W). ***E.O. Box by others. Carlon Model B120A or equivalent recommended for all 8-ohm models. ** Decora® is a registered Trademark of Leviton Corporation. Specifications subject to change without notice 1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A. / TELEPHONE: (800) 876-3333 / FAX (800) 765-3435 © 2001 Atlas Sound LP Printed in U.S.A. 000801 PN 389516 SL4-1570 265 INSTALLATION INSTRUCTIONS FOR WHISPERTOUCH MODELS DWT-8 These diagrams show examples of a system that uses 8-ohm loudspeakers and an amplifier capable of handling a 2-ohm load. Set each WhisperTouch volume control impedance jumper according to the chart on the front of this sheet. The wiring depicts how volume controls can be daisy chained or wired in home run fashion from each volume control to the amplifier. Stereo Amplifier / Receiver capable of handling a 2-ohm load AMP SUPPLY LL+ R+ R- Connect additional volume controls if desired. Confirm maximum quantity by referencing the impedance chart on front side. “Daisy Chain” Wiring "MEL" Main Equipment Location Connector Block Stereo Amplifier / Receiver capable of handling a 2-ohm load AMP SUPPLY LL+ R+ R- Connect additional volume controls if desired. Confirm maximum quantity by referencing the impedance chart on front side. “Home Run” Wiring Mounting Location: Volume controls should be placed in accessible wall locations that are close to entryways, exits, light switches, or telephones. They may also be ganged with other low voltage* controls such as keypads or infrared repeaters. *Note: WhisperTouch should not be mounted into the same electrical box used for a 110-volt device —even if the box says it is partitioned for this purpose. Speaker wires may pick up electrical noise which will be transmitted as a buzzing or popping sound to the loudspeakers. Mounting Requirements: Switched WhisperTouch units are slightly taller, wider, and deeper than most volume controls and requires a 20 cu in. E.O. box with a min...