Dayton Audio 13mm Coin Exciter 4Ω 3W DAEX13CT-4

The Dayton Audio DAEX13CT-4 is a palm-sized 13 mm coin-type exciter that converts surfaces into speakers using a neodymium motor and pre-applied 3M VHB adhesive.

Compact yet capable, this exciter is engineered to make nearly any small surface vibrate and reproduce sound without a conventional cone. Its tiny footprint—just over an inch in diameter and about 3/8" high—lets designers embed audio into toys, cabinets, instrument panels, displays, and more. The DAEX13CT-4 offers a 4 Ω nominal impedance for easy matching with small Class D amplifiers and includes two PCB solder points for tidy, compact wiring.

How does this exciter turn objects into speakers?

The DAEX13CT-4 converts electrical audio signal into mechanical vibration via a proprietary voice coil and rare-earth neodymium magnet. When attached to a surface, those vibrations transfer into the material and create audible sound, effectively turning the panel or object itself into a radiating diaphragm.

• 13 mm voice coil optimized for small surfaces
• Neodymium magnet for high magnetic flux and sensitivity
• Pre-applied 3M VHB adhesive for reliable energy transfer
• Two PCB solder points for neat connections

What performance should I expect from this 3W, 4-ohm exciter?

This exciter is designed for low-power applications; its neodymium motor improves sensitivity so modest amplifiers can drive it effectively. Output and frequency balance depend heavily on the surface size and material: thin, small panels emphasize mid and high frequencies, while larger, stiffer panels give fuller-range output when used in arrays.

• 3 W nominal handling for compact amplifier systems
• 4 Ω impedance enables series and parallel arrays for tailored dispersion
• Surface-dependent frequency response—experiment for best results
• Ideal for adding localized audio without visible speakers

How do I install the DAEX13CT-4 and what mounting options work best?

Installation is straightforward: peel the pre-applied 3M VHB backing and stick the exciter to a clean, flat spot on the chosen surface. For reliable adhesion and maximum acoustic transfer, choose an area free of heavy curvature, oily residues, or loose finishes.

• Peel-and-stick 3M VHB adhesive with 15.7 mm outside diameter
• Solder to the two PCB pads or use thin gauge wires for compact runs
• Test placement—loudness and tone change with location and surface type
• Use multiple exciters in series/parallel for larger or thicker panels

Can I use this in arrays or with other audio components?

Yes—because the exciter has a 4 Ω nominal impedance, you can wire several units in series or series-parallel to match amplifier loads and shape dispersion. Small Class D amps pair well for battery-powered or embedded projects where footprint and efficiency matter.

• Series wiring raises total impedance for compact amp compatibility
• Series-parallel configs let you scale loudness and coverage
• Works well with small Class D amplifiers for efficient power use
• Multiple exciters smooth frequency response across larger surfaces

Who is this for? Engineers, product designers, hobbyists, and educators who need invisible or space-constrained audio solutions will benefit most from the DAEX13CT-4. It’s ideal for toy designers, exhibit builders, cabinet and furniture audio integration, hobby electronics, and any project that needs localized sound without visible speaker cones. Experimenting with different materials and array configurations will yield the best match of tone and volume for your application.