Quick Overview Take your product or project to the next level by turning into a speaker! The DAEX25VT-4 is designed by Dayton Audio with voice coil cooling air vents, for high-power applications. Product Highlights Small size; just over 2" diameter, about 7/8" high Pre-applied 3M™ VHB™ adhesive for quick, secure installation Rare-earth neodymium motor and a proprietary voice coil 4 ohms impedance for use with small, Class D amplifiers 20 watt RMS power handling for high output Product Manuals / Spec Sheets / Downloads Dayton Audio DAEX25VT-4 Specification Sheet AddThis Sharing Buttons Share to FacebookFacebook Share to TwitterTwitter Share to MoreAddThis Product Description Dayton Audios 25 mm DAEX25VT-4 coin type exciter features the same ability to turn nearly any surface into a speaker, as other exciters and tactile transducers, only in a more compact package for working with smaller surfaces. This exciters small size enables audio reproduction in places never imagined: toys, monitors, cabinet doors... even windows! A neodymium magnet is employed to create maximum magnetic flux around the proprietary voice coil for increased sensitivity when compared to similar sized exciters. In turn, this reduces power requirements and makes it possible to use very small audio amplifiers, without sacrificing total output. The 1" voice coil, and cooling vents, allows for more input power for higher output applications while maintaining a slim-line form factor. 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! Two PCB solder points keep installation and wiring as compact as possible. Note: An exciters frequency response and sensitivity are completely dependent on the exciters designated surface. Thinner, smaller materials will tend to be louder and create a mid/tweeter response. Thicker, larger materials (with multiple exciters) will be slightly quieter but result in a more full-range sound. Adhesive dimensions: 28 mm (outside diameter), 21.5 mm (inside diameter) To understand more about exciter technology, here is a link to the Exciters Buyers Guide . Product Details Speaker Series Exciters Model Number DAEX25VT-4 List Price $13.99 Color Black Unit of Measure Each UPC 848791000942 Warranty - Parts 5 Years Warranty - Labor 5 Years Product Shipping Weight (lbs.) 0.2 Speaker Type Exciter Power Handling (RMS) 20 watts Power Handling (max) -- Continuous Program Power -- Impedance 4 ohms Sensitivity -- Frequency Response -- Voice Coil Diameter 25 mm Magnet Weight -- DC Resistance (Re) 4.2 ohms Voice Coil Inductance (Le) 0.24 mH @ 1 kHz Resonant Frequency (Fs) 230 Hz Mechanical Q (Qms) -- Electromagnetic Q (Qes) -- Total Q (Qts) 0.83 Diaphragm Mass Inc. Airload (Mms) 1.75 g Moving Mass Of Diaphragm (Mmd) -- Mechanical Compliance of Suspension (Cms) 0.0003 mm/N Surface Area Of Cone (Sd) -- Volume of Displacement (Vd) -- BL Product (BL) 3.86 Tm Compliance Equivalent Volume (Vas) -- Maximum Linear Excursion (Xmax) -- Drivers Mechanical Losses (Rms) -- Entry / Exit Diameter -- Surround Material -- Voice Coil Wire Material -- Voice Coil Former -- Basket/Frame Material -- Magnet Material -- Overall Outside Diameter 51.4 mm dia. Overall Depth 20.5 mm Baffle Cutout Diameter -- Mounting Hole Diameter -- Bolt Circle Diameter -- Product Weight --