Overview Unlike a tactile transducer that delivers 'shake' effects to your listening experience, the HDN-8 Sound Exciter Transducer is a full range , versatile, compact transducer that can excite a surface or structure over a wide bandwidth, enabling the creation of completely hidden audio systems in walls, ceilings, and floors. Its high power handling allows it to produce useful sound levels with a small number of transducers, and its hermetically-sealed design permits indoor or outdoor installation, even in wet or humid environments such as outside decking or an inside bath/shower installations. It features a single, coarse-threaded mounting stud that easily installs into wood, fiberglass, or plastic, and the 8-ohm impedance allows integration with conventional audio amplifiers. Specifications: ; Frequency response: 40–15,000 (typical) ; Sensitivity: varies by application ; Dimensions: 4' W x 1.75' H ; Impedance: 8 ohms ; Power handling: 50 watts RMS / 100 watts maximum. To learn more about Dayton Audio Exciters, and for help on which Exciter is right for you, check out Dayton Audio's Understanding and Using Dayton Audio Exciters White Paper .