Highlights
Small size; just under 2" diameter, about 7/8" high
Pre-applied 3M™ VHB™ adhesive for quick, durable installation
Rare-earth neodymium motor and a proprietary voice coil
4-ohm impedance for use with small, Class D amplifiers
24 watt RMS power handling for high output
Dayton Audio DAEX25FHE-4 Framed High Efficiency 25mm Exciter 24W 4
Ohm
Dayton Audio's 25 mm DAEX25FHE-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 exciter's 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! For permanent inverted mounting (or when
mounting on moving surfaces), four screw tabs are also provided to support the
weight of the exciter. Two PCB solder points keep installation and wiring as
compact as possible.
Note: An exciter's frequency response and sensitivity are completely
dependent on the exciter's 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.
Specifications:
• Power handling: 24 watts RMS
• VCdia: 25 mm
• Nominal impedance: 4 ohms
• Re: 4.3 ohms
• Le: 0.10 mH
• Fs: 224 Hz
• Dimensions: 1.99" (50.5 mm) dia. x 0.81" (20.5 mm) H
• Adhesive dimensions: 1.09" (27.6 mm) outside diameter, 0.86" (21.8 mm)
inside diameter
• Weight: 110.9 grams.