Mackie SA1532z Owner's Manual - Page 4

REAR PANEL DESCRIPTION 1. MAIN INPUT This is a female XLR-type connector that accepts a balanced line-level signal from a mixing console or other signal source. 2. LOOP OUT This is a male XLR-type connector that produces exactly the same signal that is connected to the MAIN INPUT jack. Use it to daisy-chain several SA1532z's together off the same signal source. PARALLEL MAIN INPUT LOOP OUT SA1532Z ACTIVE SOUND REINFORCEMENT SPEAKER SYSTEM 0dB -15 +5 DESIGNED BY MACKOIDS IN WOODINVILLE, WA, USA COPYRIGHT ©2004 • THE FOLLOWING ARE TRADEMARKS OR REGISTERED TRADEMARKS OF LOUD TECHNOLOGIES INC.: "MACKIE", AND THE "RUNNING MAN" FIGURE • PATENT PENDING POWER SIGNAL LIMIT THERMAL 7. THERMAL Indicator 3. Level Control This controls the overall signal level at the input to the built-in power amplifiers. It ranges from -15 dB to +5 dB of gain. The center detent is 0 dB (unity gain). 4. Power ON Indicator When the POWER switch is turned on, and the linecord is connected to an active AC power supply, this indicator lights green to let you know that you're ready to rock and roll. The cool blue LED on the front of the cabinet works in the same way. 5. SIGNAL Present Indicator This LED illuminates whenever there is a signal present at the MAIN INPUT connector on the rear panel. It senses the signal just after the level control, so if the level control is turned down, the SIGNAL Present indicator turns off. 6. LIMIT Indicator The SA1532z has a built-in limiter that prevents the amplifier outputs from clipping or overdriving the transducers. The LIMIT indicator lights when the limiter is activated. It's okay for the LIMIT indicator to blink occasionally, but if it blinks frequently or lights continuously, turn down the level control until the LIMIT indicator only blinks occasionally. There is also a thermal protection circuit that monitors the internal temperature of the amplifiers and heatsink. If the temperature should exceed a safe operating level, this indicator lights and the signal is muted to allow the amplifiers to cool. When the temperature cools to a safe level once again, the thermal protection circuit deactivates and normal operation continues. Note: Activation of the thermal protection circuit is an indication that you should take steps to avoid continued thermal problems. See "Thermal Considerations" on page 6. 8. POWER Switch Use this switch to turn the SA1532z on and off. Make sure the level control is turned down before you turn it on. 9. AC Receptacle This is where you connect the AC linecord to provide AC power to the SA1532z's built-in power amplifiers. Plug the linecord into an AC socket properly configured for your particular model. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING: THIS SURFACE MAY REACH HIGH TEMPERATURE DURING STANDARD USE. TO ENSURE PROPER OPERATION ALLOW A MINIMUM OF 6 INS. OF CLEARANCE FROM THIS SURFACE AND ADEQUATE VENTILATION. TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE THIS PANEL OR ANY ATTACHED COMPONENT. NO OPERATOR SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL. TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR REPLACE WITH THE SAME TYPE FUSE AND RATING. DISCONNECT SUPPLY CORD BEFORE CHANGING FUSE UTILISE UN FUSIBLE DE RECHANGE DE MÊME TYPE. DEBRANCHER AVANT DE REMPLACER LE FUSIBLE SERIAL NUMBER MANUFACTURING DATE ON 4