M109 Rider Forums banner
1 - 3 of 3 Posts

·
Registered
Joined
·
157 Posts
Discussion Starter · #1 ·
I bought this "Portable Vibrating Speaker..." off of Daily Steals (overstock website). There are probably lots of sources for them. The thing hooks into any 1/8" headphone jack and has a little transducer (~1.5" dia) that you place on any surface - which turns it into the speaker.

I haven't tried this on the road yet, but just fiddling here in my family room, I can tell that this will easily work better than jamming plugs into my ears - which is painful while wearing the helmet. Also, you get all tangled up when putting the helmet on / off with plugs.

You can even just land this on a bony part of your head (jaw, skull...) and get reasonable sound. I am not much on music during rides, but for talk shows and such, I think this will be nice.

This takes 2 AAA batteries, and I bet it's a pig.
Hood Automotive lighting Automotive tire Bumper Fender


I am a runner, and I hate dealing with plugs. I might figure out a way to make a hat work with this.

Sorry if this is old news to you guys, I hadn't run into this before.
 

·
Registered
Joined
·
157 Posts
Discussion Starter · #6 ·
Progress

OK, I finally dug into this project. The short version is that it works satisfactorily. I doubt that anyone will do something this crazy, but just for the sake of closing the loop, here goes.

I have a lot of helmets (my head grew, or the helmets shrunk shrank:dontknow:). I normally use my XL, but have now modified my L. I epoxied the element to the inside of the helmet. There's a diaphragm that's about 1" dia under the general body of the element; that's what I glued.
Automotive tire Bicycle part Tread Rim Audio equipment
It's that white blob with the wire.

Next I cut a well into the Styrofoam that goes in this section (yes, I am nuts).
Plumbing fixture Automotive tire Toilet Wood Automotive design
I had to keep fiddling, as you might guess. If you don't cut enough of a well out, you end up squashing the element against the helmet too hard, and lose volume (sound level).

Next I put it all back together.
Carbon Bicycle part Personal protective equipment Auto part Fashion accessory
Wood Automotive tire Flooring Floor Audio equipment
I ran the wire out with the strap, but in a way that keeps it outside of my chin.

I did modify the product, to put a connector in-line, so when I pull the helmet off, I don't have to have a bunch of barnacles hanging on.

When I have the helmet on the bench, it's rather loud. When I put it on, I'm still pushing the foam into the element, but it's all still pretty loud.

I took it out for a spin today and... it's okay, but not great at high speed. I am certain that I just need to make that well a little deeper to get full volume.

I don't think anybody would be thrilled with this for music, unless you're pretty easy to please. I am doing this b/c I listen to blab-radio and audio books.

So, good enough for me, but I'll probably work at it some more.

I also ordered some muffs off of ebay, which I'll try when they come in, and report back.
 

·
Registered
Joined
·
157 Posts
Discussion Starter · #9 ·
1 - 3 of 3 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top