Dayton Audio DAEX32QMB-4 Quad Arm Exciter — 40W RMS, 4Ω

Turn flat surfaces into full-range speakers

The Dayton Audio DAEX32QMB-4 quad-arm exciter is a compact transducer designed to bring music to rigid, flat panels. With a substantial 32 mm voice coil, this unit supports up to 40 watts RMS, giving you more headroom from modest amplifiers and a wider range of listening possibilities from everyday surfaces.

A rare-earth neodymium motor works in tandem with a proprietary vented voice coil to maximize magnetic flux, boosting sensitivity and efficiency. The four arms extend from the main body to stabilize the assembly and improve linearity when mounted on horizontal or vertical surfaces, helping the surface respond more predictably to the music as it moves with the signal.

There’s no separate mounting hardware required—the main body ships with pre-applied 3M VHB adhesive for quick installation. The result is a simple peel-and-stick approach that fits a wide range of DIY projects, from wooden boards to acrylic panels, glass, or metal surfaces. Keep in mind that performance depends on the attached surface; thinner, stiffer materials can push more midrange and treble energy, while thicker or multi-exciter configurations may yield a broader soundstage with a fuller register.

Key features at a glance:

• Large 32 mm voice coil improves power handling to 40 watts RMS
• Rare-earth neodymium motor paired with a proprietary vented voice coil for efficiency
• Four arms add support and improve linearity across surfaces
• Turns any flat, rigid surface into a speaker with pre-applied adhesive

Practical notes: The frequency response and perceived volume depend on the attached surface and the number of exciters used. For thin, lightweight panels, you may notice more midrange activity; on thicker materials, a fuller sound can emerge, especially when multiple exciters are used. Pair with a compact amplifier and explore creative setups for demos, art installations, or personal projects without adding bulk.

Why Dayton Audio? This transducer is built for DIY enthusiasts who value flexible, space-saving sound solutions. The DAEX32QMB-4 is a practical building block for creative installations, portable projects, and educational demonstrations where size and weight matter.

Ideal use cases include experimenting with wood, acrylic, glass, or metal panels to reveal surprisingly rich sound signatures from everyday surfaces.

What you need: rigid surface, appropriate amplifier headroom, and safe mounting to ensure stable performance.