Im assuming these have an impedance rating, but its not listed or mentioned; whats the impedence rating, in ohms?

According to what I've found elsewhere, 8 ohms of impedance, 5 watts RMS, 10 watts peak.

Will they work pressed up against a surface for temporary location or does it have to be stuck on with the adhesive?

Pressing them against the surface will prevent the transducer from vibrating. They work just like a speaker, minus the cone. They can be relocated. New 3m double sided works or hot glue's great too.

Mine has stopped working. Do these run out of battery over a period of time? Or just faulty?

It might be faulty. There's no battery in these; they need to be hooked up to an amp of some kind. The adhesive might have weakened or the speaker driver could have a short or be defective.

could these be concealed behind a bookcase or couch (with a gap)? or do they need to be unobstructed?

I think that the only problem would be that the sound will be obstructed but I don’t why you cannot do it.

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DAEX25 Sound Exciter Pair

Product ID: 253349634

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Details

Brand
Dayton Audio
Speaker maximum output power
10 Watts
Frequency response
298 Hz
Connectivity technology
Electric Cable
Audio output mode
Surround

⚡8Ω impedance

📌3M adhesive mounting

🔊20W max power

Description

🎧 Elevate your audio game—feel the sound, don’t just hear it!

POWERFUL YET COMPACT - 20 watts max power with 8-ohm impedance delivers rich, clear audio without bulky speakers.
RISK FREE 5 YEAR WARRANTY - Invest confidently with Dayton Audio’s industry-leading warranty and expert support.
VERSATILE EASY INSTALLATION - Securely mount with included 3M adhesive for hassle-free setup on multiple surfaces.
BUTTKICKER INSPIRED VIBRATION TECH - Feel every bass drop and rumble like never before—perfect for gaming and home theaters.
TRANSFORM ANY SURFACE INTO A SPEAKER - Turn wood, metal, or glass into immersive soundscapes with cutting-edge exciter tech.

The Dayton Audio DAEX25 Sound Exciter Pair is a versatile tactile transducer that converts any surface into a dynamic speaker by transmitting powerful low-frequency vibrations. With 20 watts max power, 8-ohm impedance, and easy 3M adhesive mounting, it’s ideal for gamers, home theater enthusiasts, and audio innovators seeking immersive sound experiences backed by a 5-year warranty.

Specifications

Connectivity Protocol	wired
Connectivity Technology	wired
Number Of Circuits	1
Item Weight	5.6 ounces
Item Dimensions D x W x H	0.75"D x 3.59"W x 3.59"H
Unit Count	1.0 Count
Is Electric	Yes
Power Source	Corded Electric
Impedance	8 Ohm
Number of Audio Channels	2.0
Speaker Maximum Output Power	10 Watts
Compatible Devices	Laptop, Personal Computer, Smartphone
Speaker Size	93.1 Millimeters
MP3 player	No
Specific Uses For Product	Creating hidden surround sound systems, adding sound to unusual surfaces
Color	Black
Is Waterproof	FALSE
Warranty Type	Full
Control Method	App
Audio Output Mode	Surround
Speaker Type	Surround
Additional Features	Transforms Solid Surfaces into Speakers
Recommended Uses For Product	Transforming solid surfaces into speaker systems, creating hidden sound systems

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€ 112.72

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