used Mackie SWA1501 Powered 15" Active Subwoofer. In good working condition.
FOR LOCAL PICKUP ONLY
SWA1501 The SWA1501 is a 15-inch high-output, active subwoof er system. It features a high-precision 15-inch transducer combined with application-specifi c amplifi er technology. The system is composed of a single, compact subwoofer cabinet with built-in control and amplifi er electronics. The transducer used in the SWA1501 system features a 3-inch, inside/outside wound voice coil that offers extreme power handling capabilities. The magnetic assembly used features advancements in coil venting and structural cool ing that provide lower temperature rise and substantially improved power compression characteristics. The amplifi er found in the SWA1501 cabinet is an example of application-specifi c amplifi er design that can be exercised when designing active speaker systems. The system uses a proprietary high-effi ciency, high-current amplifi er designed to provide high current levels at all levels of operation. Having access to high current levels, no matter what the power output, is absolutely critical in achieving precise, total control of the woofer mass. This control is responsible for lowering audible distor tion artifacts and providing aggressive attack through the operating band pass of the system. The amplifi er, which is mounted on a large, fi nned aluminum heat sink, is rated at 500 watts RMS continuous output. The SWA1501 features a sophisticated on board con trol system, allowing for fl exible integration with active or passive full range or mid/high speaker systems. The input panel accepts a line-level input signal and has LOOP OUT connectors for signal routing to other devices. It also has HIGH PASS out connectors for connection to active full range speakers or amplifi ers powering passive full range speakers. All signal routing is through XLR connectors in L+R stereo or mono. There is a phase selection switch and a recessed level control. The system features thermal protection for the power supply and amplifi er and also incorporates RMS limit ing protection for the amplifi er stage that limits the amount of long-term power delivered to the transducer. Active Subwoofer System Features SPEAKER SWA1501 Active, high-output 15-inch subwoofer system High-effi ciency/high-current 500 watt RMS continuous output amplifi er High output 128 dB of peak SPL Response down to 36 Hz (–10 dB point) Can be used with active or passive speaker systems Built-in crossover network with stereo or mono high pass outputs Recessed level control, center detent rotating knob (–15 to +5 dB) Recessed phase switch (0°–180°) 3-inch, inside/outside high-temperature coil technology Super compact, portable enclosure Small footprint allows for unobtrusive, strategic placement Baltic birch wood construction, built-in pole mount Correctly weight-balanced enclosure Two comfortable side handles for easy carrying and set up The cabinet is constructed using 18 mm thick multi layered birch plywood and fi nished in black splatter paint. There is one handle on each side for effi cient loading and transport as well as a top, female pole mount fi xture.
