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6 RACK MOUNTING BRACKETS .................................................................................................. 7 TYPICAL APPLICATIONS ........................................................................................................... 7 SPECIFICATIONS {WS-A240, WS-SP2A) ..................................................................................... 10 INFORMATION FOR QUALIFIED SERVICE PERSONNEL ...................................................... 11 RECOMMENDED FUNCTION SELECTOR SETTING ................................................................ 12 MIXER AND SPEAKER LIMITED WARRANTY ........................................................................ 13 APPEARANCE A CAUTION I RISK OF ELECTRIC SHOCK 00 NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK. DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. A The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's SA 1965 enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the Sa 1966 literature accompanying the appli- ance. The serial number of this product may be found on the bottom of the unit. You should note the serial number of this unit in the space provided and retain this book as a permanent record of your purchase to aid identification in the event of theft. Model No. _ Serial No. _ WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. NAMES OF COMPONENTS • WS-A240 • WS-SP2A (T) Threaded mounting holes M8 x 19 mm © Ports (§) Punched grille -(4) Speaker 12" (30 cm) (D Power ON indicator lamp (2) Power switch [POWER] (3) Input connector (INPUT A, B| + 4 dB, 20kf2 balanced XLR-type (4) Output phone jack (OUT A] + 4 dB, 600fl unbalanced (5) Output phone jack iOUT B| + 4 dB, 6001) unbalanced (6) Output phone jack [VLF OUT] + 4 dB, 6001) unbalanced (7) Output phone jack IA + B OUT I + 4 dB, 6001) unbalanced (8) Power cable (9) Ground Terminal |GND| - 2 - 1 LOUDSPEAKER INSTALLATION The WS-A240 is equipped with six M8 x 25 threaded inserts that are molded into the enclosure. All attachments to the enclosure should use these fittings. For stand mounting, two thumbscrews are provided with the WS-A240, which should be handtightened only. For suspended applications, forged shoulder eye-bolts are recommended. DO NOT substitute any other fitting for these critical load-bearing components. Forged eye-bolt Thumbscrew RAMSA Part No. XVP8F25FZ When mounting WS-A240 loudspeakers to a wall or ceiling, either by hanging or with brackets, they should be securely attached to the building structure. This requires knowledge of building construction and load-bearing capacities. If this information is unknown, installers should seek the advice of an architect or structural engineer before attempting such attachments. The loudspeaker systems can be mounted vertically or horizontally. When mounting horizontally, remove the four screws fitting the front grill, rotate the grill 90 degrees and re-install. Do not operate the WS-A240 without the protective grill in place. When multiple WS-A240s are to be installed, best performance will be realized when units are mounted in close proximity to one another. Because high sound levels at low frequencies will be realized, special care should be observed to assure that structural resonances and vibrations do not impair the sound quality. BEFORE CONNECTION Switch off power amplifiers) before connecting the loudspeaker^}. After loudspeaker connection, be certain that high level audio signals are not present before switching the amplifiers on. The nominal impedance of the WS-A240 is 8 ohms. Two loudspeakers in parallel will have a nominal impedance of 4 ohms, which is the lowest impedance most amplifiers are capable of driving. Be certain that the number of loudspeakers connected in parallel does not result in a load impedance that is below the rating of the amplifier. Use the largest wire gauge speaker cable that is practical to minimize DC resistance and losses due to cable length. Note that the lower the impedance of the total speaker load, the greater the losses in the wire. Observe loudspeaker polarity. The plus I + I and minus 1-1 terminals of each loudspeaker are marked red and black, respectively. A positive-going signal applied to the red terminal will result in forward movement of the loudspeaker diaphragm. When two or more speakers are used, make sure that the polarities of these speakers are the same. POWER HANDLING CAPACITY The rated power capacity of the WS-A240 is 400 watts in accordance with the test procedure ...