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194 Robertson Road
Suite # 27C
Ottawa, ON K2H 9J5
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QSC Audio Products, Inc. - AD-S28Tw AcousticDesign

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Extreme Media Converter Switch, 10-/100-Mbps Copper to 10-Mbps Fiber, Multimode, 100-240-VAC, ST




Surface Mount Subwoofer

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AD-S28Tw surface mount subwoofer system, designed to supplement audio systems by adding low-frequency extension, new AD-S28Tw is acoustically matched to the entire AD series. Rated for 250W continuous power handling and able to take up to 700W peaks, AD-S28Tw is great complement to any of the ceiling-mount or surface-mount AD series models. Dual 8-inch woofers are equipped with polypropylene cones for protection in humid environments. The bandpass enclosure features two chambers. One chamber is completely sealed, while the other chamber features large port. The bandpass design allows for tight precise bass with extension down to 36Hz. This highly efficient design produces 1W at 1m sensitivity of 94dB SPL. AD-S28Tw built-in passive low-pass filter set at 120Hz. The marine grade plywood enclosure is built to highest standard to provide exceptional resistance to high humidity. The zinc-plated steel grille has black foam backing, molded ABS endcaps and rotatable logo. On the rear of the enclosure is the input cup with hinged door to conceal the controls and input connections. Input and output nickel plated screw terminals accept wiring from 18AWG (1.02mm) to 12AWG (2.053mm). Two rotary switches can be found in the input cup. One switch selects between the 70/100V transformer taps, while the other switch enables or disables the internal passive low-pass filter. AD-S28Tw can be deployed in number of ways. With the included rubber feet attached, the subwoofer can be floor or shelf-standing. Suspended installation is available with either the included forged-shoulder eyebolts and accessories or the included steel yoke.
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