Dayton Audio DAEX25FHE-4 High Efficiency Exciter

The Dayton Audio DAEX25FHE-4 sound exciter transforms virtually any rigid surface into a speaker, offering a versatile solution for hidden or unconventional audio installations. Whether you are crafting a custom home theatre, integrating sound into furniture, or developing interactive exhibits, this full-range exciter delivers clear, resonant audio without the need for a traditional enclosure. Its compact design makes it ideal for DIY projects where space is at a premium or where a minimalist aesthetic is desired.

Technically, the exciter features a 4-ohm impedance and a 25mm voice coil, with a frequency response centred around a resonance of 224 Hz. The total Q factor of 0.78 ensures controlled, accurate reproduction, while the BL product of 3.63 and mechanical compliance of 0.0003 m/N contribute to efficient energy transfer. The unit weighs just 110.9 grams and has a depth of 20.5 mm, with a 50.5 mm outer diameter. Mounting is simplified by pre-applied 3M VHB adhesive, supplemented by four screw-down tabs for a secure fit on surfaces with a mounting area of 27.6 mm outside diameter and 21.8 mm inside diameter. With a DC resistance of 4.3 ohms and an inductance of 0.1 mH, this exciter is engineered for reliable, high-quality performance in any creative audio application.