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motorcycle helmet

post #1 of 10
3/27/07 at 12:34am
Thread Starter 
got a new helmet and and looking at ways of install headphones into them


looked at the commercial products and don't like the drivers
any recommendations for headphones to heist the drivers out of was thing maybe good old ksc75
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post #2 of 10
3/27/07 at 3:57pm
I used a set of sony drivers a few years ago. From a street style headset I found at radio shack.

My new helmet is getting grado drivers from a donor SR-40! I expect it'll sound great.

There were some old thread here and at Headwize.com about set up. Try the search
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post #3 of 10
3/27/07 at 4:02pm
I'd think grado drivers in a helmet would sound bad, since they prefer open air. I'd go with something that works well closed.
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post #4 of 10
3/27/07 at 7:33pm
Hey Grawk, that's cool. Experiment. Find out what works for YOU!

Besides, there is no way to get better than good sound on the bike. Combination of wind noise and mechanical noises drown out musical details quickly.

Unless you plan to use in-the-ear-phones, you're limited to mostly mid-range frequencies. Both the lows and highs get lost in the noise.

I'll post pictures later.

Andrew
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post #5 of 10
3/27/07 at 11:03pm
I had a set of Sony IEMS.They were ok untill I went on the road trip.85mph destroyed the cables.I need to make some molds out of epoxy and recable them for this years road trip.
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post #6 of 10
3/28/07 at 8:04pm
First picture show earphones and jack in helmet. With covering pulled back to show driver.

Second pic shows equipment in tankbag. MP3 player (NEX-II), escort 8500 radar detector, DIY amp and cables.

I chose to have the whole shebang powered from the bikes 12V supply, The amp has two inputs, one stereo and the other buffered inverting for the escort 8500. The amp uses LM386's producing 1/2 watt per channel at full power. The radar's output only injects signal into the left channel (my choice).

With the sony drivers, music is reasonably audible up to ~80MPH with my bike/helmet combo. Depending on music choice too. It's not hi-fi, but allows some tunes for chewing up highway miles.



Tank bag
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post #7 of 10
3/29/07 at 1:43am
Thread Starter 
How big do you think those drivers are?
took out the padding on mine and it has a fairly large area by the ears (btw this is a nolan n100e off ebay it used to have a intercom deal in it). The area around the ears seems to be stock nothing extra cut out but i think i could larger than ksc75 drivers in it

Your amp do you maybe have schematic. would like to do something similar with say an ipod and a cell phone
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post #8 of 10
3/29/07 at 8:54am
The sony drivers are about 1.5 inches in diameter. I did a couple of test placements before finding the audio sweetspot for the drivers reside.
I then removed helmet liner foam from behind the drivers so they'd sit flush. cut a path for the coax wire to run, then used hot glue to keep them in place.

The helmets jack placement requires some thought too. Once the connection is made make sure there is no interference between the jacks and your skin when you roll your head around TRYING to over extend.

The end result is one wire running from my tankbag to the jack in the helmet. I choose this connection based on my concern for what would happen in a 'get-off' or accident.


I don't know about the cell phone integration, it wasn't one of my goals.

Schematics:
LM386 amp schematic
Buffer theory and details
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post #9 of 10
3/30/07 at 7:26pm
Thread Starter 
looked at the schematic and am still unsure how you tied the escort radar detector into the left channel. did you just have it loud enough to here the beep over the music and it did not mute the music at all?
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post #10 of 10
12/29/10 at 2:50pm

An affordable Motorcycle intercom system for Rider to Passenger with input for Music, includes 2 headsets.

 

 

  Sena SMH10
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