Brand NEW! Including 90 Days USA Factory Warranty. Dayton Audio's unique DAEX25X4-4 exciter assembly employs an array of four separate exciters coupled together with a frame. This combined motor strength actuates an area larger than what conventional exciters can drive, resulting in higher power handling and more output. Key Features Pre-applied 3M? VHB? adhesive for quick, secure installation Four 24 mm voice coils improves power handling to 40 watts RMS Rare-earth neodymium motor and proprietary voice coils Easy 8 ohm load, can be powered by most amplifiers The Dayton Audio exciter assembly's unique design uses four 25 mm exciters coupled to a plastic frame to actuate a larger area with more force than conventional designs. This array of exciters is wired in a series-parallel configuration for an overall impedance of 8 ohms and power handling of up to 40 watts RMS. The DAEX25X4-4 exciter features the same ability to turn nearly any surface into a speaker as other exciters and tactile transducers do, only with a larger contact area and moving mass that increases energy transfer. Perfect for use in walls, drop ceilings, or even cabinet doors. To ensure maximum acoustic energy transfer between the transducer and the surface to which it is attached, 3M VHB (Very High Bond) adhesive is pre-applied... just peel and stick! Connection is made with 10" wire leads to keep installation and wiring as simple as possible. Specifications: ? Power handling: 40 watts RMS ? VCdia: 4 x 25 mm ? Nominal impedance: 8 ohms ? Re: 7.3 ohms ? Le: 0.29 mH ? Fs: 285 Hz ? Dimensions: 7.5" W x 7.5" H x 0.75" D ? Weight: 240 grams. Product Specifications Application Full-Range Exciter Power Handling (RMS) 40 Watts Impedance 8? - All international buyers are responsible for all tax, duties and/or customs fees.