Mackie S512 Owner's Manual - Page 3

phase plug. The result is frequency response linearity and extension never before available for a product in this class. The S500 also features a low-distortion, high-output horn design developed to provide the correct power response and phase alignment characteristics at the crossover frequency. With the resulting 75º x 65º dispersion pattern, the S500 provides very open, natural sound reproduction at extreme output levels. The S500 produces deep bass through a 15-inch high-efficiency RCF® precision woofer. The magnetic structure designed for the woofer motor is responsible for the system's resulting high sensitivity of 100 dB (1 watt@1 meter). More importantly, the high-efficiency motor provides an extraordinary amount of force that provides complete control of the cone mass. This type of control allows the woofer to deliver extended bass response and to reach the mid-frequency crossover point efficiently. The S500 frequency response is linear between 75 Hz and 20 kHz. Protection for the high-frequency driver is provided via an integrated MOSFET circuit that actively monitors and controls the power delivered to the compression driver. There is also a circuit breaker button on the rear control panel designed to protect the woofer from excessive power. The breaker "sees" the amplifier signal being delivered to the woofer and opens when the combination of amperage and voltage exceeds the maximum rated power levels. The breaker switch can be reset by pressing the button. The rear control panel features both a 1/4˝ speaker jack and a Neutrik® Speakon® connector, wired in parallel. The S500 cabinet is constructed using both multi-layered plywood and pressure-injected structural resin. The top and bottom sections both have handles for easy movement and relocation. There is an integrated pole-mount on the bottom of the enclosure. In addition, there are two, three-part cast-aluminum handles on each side of the enclosure as well as a full size, oval-punched, weatherresistant steel grille. CONNECTIONS The S500 has a 1/4˝ TS jack and a Neutrik Speakon™ connector, wired in parallel. Use high-quality speaker cable as recommended by the amplifier manufacturer. The 1/4˝ TS jack uses the following wiring standard: Tip = Signal (+) Sleeve = Ground (Shield) SLEEVE SLEEVE TIP TIP 1/4" TS Connector TIP (HOT) SLEEVE (SHIELD) The Speakon connector uses the following wiring standard: Pin 1+ = Signal (+) Pin 1- = Ground (-) Neutrik Connector 1- 1+ COLD HOT 1- 2+ 1+ 2- SERVICE INFORMATION Warranty Service If you think your loudspeaker has a problem, please do everything you can to confirm it before calling for service. Repair Service for the S500 is available only from one of our authorized domestic service stations or at the factory service center located in Whitinsville, Massachusetts. Service outside the United States can be obtained through local dealers or distributors. If your S500 needs service, please follow these instructions: 1. Call Tech Support at 1-800-258-6883, 8 am to 5 pm PST, to explain the problem in detail. They will ask you all sorts of impertinent questions in the hope of sorting out the problem. If it appears that the S500 needs repair, request an RA (Return Authorization) number. 3