Dayton Audio BCT-2 Bone Conducting Transducer Exciter 45mm Dia. x 25mm H

Brand:| Model: BCT-2
Dayton Audio BCT Transducers produce sound through direct vibration of the bones in the head or are capable of converting surfaces into speakers via vibration when placed on materials such as desks, walls, doors, and many other materials.
  • Creates sound through vibration transmission
  • Turns nearly any surface into a speaker
  • Cushioned stand keeps your surface scratch-free
  • Wide 300 to 20,000 Hz frequency response
  • Allows you to hear without others around you hearing
Part # 
Weight: 0.35 lbs.  
List Price$39.99
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Buy 5-up$18.86
Part # 240-612
Qty:  EA
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Product Details

Dayton Audio BCT-2 Bone Conducting Transducer Exciter 45mm Dia. x 25mm H

Unlike conventional transducers that use moving air to produce sound around you, Dayton Audio BCT-2s (bone conducting transducers) convert the electrical signal into mechanical vibrations so clean, that the brain interprets the vibrating stimulus as excellent sound. Listener's ears are left free to remain aware of their surroundings, increasing personal safety.

When used against materials such as cardboard, wood, steel, and plastics, the BCT-2 operates much like a surface exciter and is capable of moving mass to produce robust sound output; much like an invisible speaker! BCTs are excellent for unique OEM sound applications and for the experimenter, where conventional speakers and exciters cannot be used due to size constraints. 

A cushioned, removable stand is included with the BCT-2 to turn your entire computer desk into a speaker without leaving behind marks. Additionally, you can apply epoxy to the stand for permanent attachment to a surface.

Note: The frequency response is given when used as a bone conducting transducer. This will change when attached to a substrate, and different substrate materials will have different frequency responses.

Specifications: • Power handling: 10 watts RMS/20 watts max • Le: 1.26 mH • Impedance: 4 ohms • Re: 5.8 ohms • Frequency response: 300-20,000 Hz • Magnet weight: 49 oz. • Fs: 530 Hz • SPL: 90.1 dB 1W/1m • Dimensions (Dia. x H): 45 x 25 mm.


To learn more about Dayton Audio Exciters, and for help on which Exciter is right for you, check out Dayton Audio's Undertanding Exciters White Paper.

Product Specifications
  • ApplicationFull-Range Exciter
  • Impedance4 ohms
  • Power Handling (RMS)10 Watts
Dayton Audio BCT-2 Bone Conducting Transducer Exciter 45mm Dia. x 25mm H
  • BrandDayton Audio
  • ModelBCT-2
  • Part Number240-612
  • UPC848791000072
  • Product CategoryTactile Transducers, Exciters & Bass Shakers
  • Unit of MeasureEA
  • Product Rating
    (1 Reviews)
  • Weight0.35 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Similar Products

View similar products to the Dayton Audio BCT-2 Bone Conducting Transducer Exciter 45mm Dia. x 25mm H
in the Tactile Transducers, Exciters & Bass Shakers product category.


Dayton Audio BCT-2 Bone Conducting Transducer Exciter 45mm Dia. x 25mm H
Dayton Audio BCT-2 Bone Conducting Transducer Exciter 45mm Dia. x 25mm H is rated 3.0 out of 5 by 1.
Rated 3 out of 5 by from Good Sound, Low volumeI bought this speaker for a small project. I wired it into some old headphone wires. It has good sound, but needs an amplifier circuit if you want to play music through anything other than your skull. It is a nifty gadget, and I hope to get it working as a vibrational speaker.
Date published: 2012-10-08

Product Q&A

Get your questions answered from other customers
who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email tech@parts-expresss.com  for a prompt reply.
Dayton Audio BCT-2 Bone Conducting Transducer Exciter 45mm Dia. x 25mm H

Hi, I´m working in a DIY project trying to make a windows with bone conduction. Is possible to use this transducer exciter to receive audio from an iphone and when touch the window with my head listen the music? I will need something else? Thanks

Asked by: axlagusti
This requires a small amplifier just like any other speaker. As long as this is connected to a small amplifier it will produce sound when mounted to a surface.
Answered by: MattP
Date published: 2014-04-14

does anyone now if this speaker can conduct through fingertips? meaning if I were to place my finger tips on it would i be able to hear the music in my head?

Asked by: paradox
Unfortunately you would not be able to hear anything in your head since your skin and tissues act as an insulator.
Answered by: MattP
Date published: 2014-02-26

Best quality sound

I am wondering if this particular transducer (having the largest voice coil) would be the best option of all for the ability to produce the best overall sound quality and frequency response. If not, which of the transducers available would be best?My goal is to produce a flat panel speaker and optimize for best overall high fidelity sound quality.
Asked by: ronning
The voice coil size does not determine the sound quality, this mainly affects power handling. These exciters are not the first choice for high fidelity sound although with the right material I'm sure they can sound decent. The material they are mounted to will play a bigger roll in sound quality than anything else.
Answered by: MattP
Date published: 2013-08-23

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