Dayton Audio HDN-8 Weatherproof Sound Exciter Transducer

Brand:| Model: HDN-8
Product Video
Compact and extremely versatile, the HDN-8 Sound Exciter Transducer lets you create high-quality ‘hidden speakers’ in walls, ceilings, floors, furniture, seating, and virtually any other surface you can think of resulting in great invisible sound.
  • Rugged plastic housing with flat black finish
  • Coarse-threaded mounting stud for single-point mounting into almost any material
  • Hermetically-sealed design for installation in wet or humid environments
Part # 
Weight: 2.3 lbs.  
List Price$29.99
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Your Price
Buy 4-up$11.90
Part # 300-387
Qty:  EA
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Product Details

Dayton Audio HDN-8 Weatherproof Sound Exciter Transducer

Unlike a tactile transducer that delivers 'shake' effects to your listening experience, the HDN-8 Sound Exciter Transducer is a full range, versatile, compact transducer that can excite a surface or structure over a wide bandwidth, enabling the creation of completely hidden audio systems in walls, ceilings, and floors. Its high power handling allows it to produce useful sound levels with a small number of transducers, and its hermetically-sealed design permits indoor or outdoor installation, even in wet or humid environments such as outside decking or an inside bath/shower installations. It features a single, coarse-threaded mounting stud that easily installs into wood, fiberglass, or plastic, and the 8-ohm impedance allows integration with conventional audio amplifiers.

Specifications: • Frequency response: 40–15,000 (typical) • Sensitivity: varies by application • Dimensions: 4" W x 1.75" H • Impedance: 8 ohms • Power handling: 50 watts RMS / 100 watts maximum.

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
  • Impedance8 ohms
  • Power Handling (RMS)50 Watts
Dayton Audio HDN-8 Weatherproof Sound Exciter Transducer
  • BrandDayton Audio
  • ModelHDN-8
  • Part Number300-387
  • UPC848791000041
  • Product CategoryTactile Transducers, Exciters & Bass Shakers
  • Unit of MeasureEA
  • Product Rating
    (8 Reviews)
  • Weight2.3 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.

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in the Tactile Transducers, Exciters & Bass Shakers product category.


Dayton Audio HDN-8 Weatherproof Sound Exciter Transducer
Dayton Audio HDN-8 Weatherproof Sound Exciter Transducer is rated 4.125 out of 5 by 8.
Rated 4 out of 5 by from GoodScrewed these in to a chair, sound great and really enjoy the bass they put in to the chair. Only thing i notice is that i have to crank my jvc Super A to around half to get a descent amount of audio and by then the tower speakers are 3x louder. Prolly the wood of the chair its self but still sounds great. Perfect for a home audio or gaming chair.
Date published: 2014-05-28
Rated 4 out of 5 by from THEY WORK, BUT!I finally got around to mounting these units in mid-April(due to the extended midwest winter!). They actually sound pretty good. I mounted on the back of an outside bar. However , I am using them in conjunction with a set of high efficiency outdoor speakers mounted on the house eves. So, I can't balance them unless I add a couple of L-Pads, which cost almost as much as the Exciters. For low to moderate listening, they perform quite well.
Date published: 2014-05-01
Rated 4 out of 5 by from Mind the mounting locationI bought this to use as a low frequency driver in my old wooden boat. I also purchased a couple of cheap marine grade speakers for my left and right channels. I was planning to drive this transducer with the sub channel of a Lepai 2.1 and pipe in my Android phone as the source. I had a 1/2" thick drawer box that seemed like the right sort of sound board to test with. (My boat is an old lapstrake mahogany plywood boat with a half inch thick cabin bulkhead.)In testing the transducer, I found that my idea of driving the middle channel with the bass channel of the Lepai to be an abject failure. I couldn't get a decent sound out of the panel box. Before giving up all together, I chose to try the box on the left channel and compare it to my regular 5.25 speaker. Pretty impressive sound. Not much at the very top or below 100 Hz, but it had a nice resonance around 120Hz and impressive highs. I will be returning the Lepai and buying a real amplifier (over 20 watts RMS) to more fully power my 2.1 set-up.
Date published: 2014-01-21
Rated 2 out of 5 by from Put out sound but, definitely not high fidelity...Bought these recently to try and get reasonable surround sound effects using existingdrywall in a room as the soundboard. Used a 1/4 in. inside wall wood panel for support as the instructions indicated. Wished they (Dayton Audio) had made the attachment bolt (screw) a little larger for better stability. Practically no treble and what midrange and bass there was sounded muddy and lifeless. Voices and other low mid to middle frequencies were okay but, what I wanted was more of a dynamic sound. Drywall sheetrock in of itself, is not dense enough for a vibrational medium for reproduction of audio frequencies. Have a recipe for making the drywall much more dense, so will try that soon.Maybe would sound better fastened to more solid materials such as other installs like wood decking, panel or beam supports and such.If anybody has some suggestions, it would be appreciated.
Date published: 2013-11-24
Rated 5 out of 5 by from Great sound ot of something fairly inexpensive.I bought them being skeptical on how they would be for quality. A good amount of quality issues can just be from what type of material that is being used for the sound. Floor joists in a home give a nice rich felling throughout the house when they are spaced out enough, plywood can be OK but depends on type and construction. Use a tight grain wood like oak or walnut. Pine floor joist or deck joist give nice sound also. I am using four at my parents lake house and they like them a lot. My boss likes them also an was wanting me to maybe install some on his boat be low deck to be able to have sound travel through the hull into the water.I did have issues with one but Parts Express had it fixed for me quickly.
Date published: 2013-09-25
Rated 4 out of 5 by from Very Interesting...I purchased these just to try-out. I was going to add them to the existing speaker set-up on my deck, but haven't gotten around to it yet. I DID try them out with various materials to see how they performed. Mounted to a small sheet of 1/4" x 12" x 20" wood paneling they sounded quite good, lacking a bit in the high-range, but that's to be expected. Mounted to a 2 x 4, no good at all, too dense I suppose. Mounted to low density foam, no good either. Mounted to a 2-foot oak log, okay but not great, I did this as a joke, thought it would be cool to have a set of "log-speakers" in my living room! I think if you find a good medium, they will sound great, but you'll have to experiment to see what works and what doesn't. All in all a nice quality item, seems well made and at a great price!
Date published: 2013-09-05

Product Q&A

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Dayton Audio HDN-8 Weatherproof Sound Exciter Transducer

How would these compare to typical transducers as far as tuning is concerned? In other words, will using a bandpass filter allow greater output, or do the physical/power handling aspects of the driver make this a moot point?

Asked by: colin321
These drivers will have the same thermal and mechanical limits as any other transducer, so yes a high pass filter can be beneficial although the thermal limits of the driver will not be changed.
Answered by: MattP
Date published: 2014-06-13

Is the wood screw removable? I know that it will eventually shake itself loose from the board I will attach it to and would like to bolt it on.

Asked by: dango
Unfortunately no it is not. This unit will not come loose with the proper sized pilot hole drilled in the structure for mounting.
Answered by: MattP
Date published: 2014-04-21

Hi-  What kind of "fast on" speaker wire connectors would you advise using with this product?

Asked by: bryon
This has 0.205" terminals.
Answered by: MattP
Date published: 2014-02-12

Do these 'couple'?

so, traditional drivers 'couple' when arranged adjacently. to these devices do the same?
Asked by: madmallard
Yes. As long as they are wired + to + and - to - they will be in phase and increase in their effect. This technology was once used to drive subwoofer speakers.
Answered by: Joe from San Francisco
Date published: 2013-11-07

Is the moving surface of the Sound Exciter Transducer just stud or back side as well?

If it is just the stud surface and mounted to the panel, does this mean that it is not supported on the back side free to move independently? Could it be mounted via back surface solid and mount a free moving panel to the stud end?Thanks for your time,Truck
Asked by: TRUCK
The frame or mass of the exciter is attached to the stud in order to efficiently transfer the vibrations so this can only be mounted by the stud.
Answered by: MattP
Date published: 2013-09-23


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