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Old 04-02-10, 10:39 AM   #1
chico1st
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Dynamo Speakers?

Do you guys know of any dynamo based bike speakers?
DIY or otherwise

Last edited by chico1st; 04-02-10 at 10:52 AM.
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Old 04-04-10, 11:51 AM   #2
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Any loudspeaker/power amp combo that you can mount and that can produce decent quality and volume with a 6 v 0.5 amp power source should work out. I once searched for some to make a rolling public address system for batteries rather than dynamo. Not easy to find. But it all depends on how far from the speaker you need the music or speech to be intelligible. That distance equates to power. So, speaker and amplifier efficiency are critical.

I finally concluded I'd have to design my own power amps, to mate with a miniature 2-way Klipsch indoor/outdoor speaker. I didn't go that far, since the "customer" didn't have any money.
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Old 04-08-10, 09:02 AM   #3
Fenway
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http://www.velofred.com/product_info...roducts_id=225

Quote:
The Audio Bike™ is the first speaker system designed to insert into the ends of the handle bars on your bicycle. It is compatible with almost any portable MP3 player or iPod©, and is easy to install. With no headphones or dangling wires, it is the safe way to enjoy your favorite music while you ride.

Surprisingly, there are very few states where it is against the law to ride while using headphones. Since the use of headphones covers the ear canals and limits you hearing your surroundings and oncoming traffic, a bicycle audio system, The Audio Bike, becomes necessary.
Highlights:
# Manufacturer - K & I Enterprises, USA
# Amplifier - 2 Watt
# Platform Size - 90x65 mm
# Weight - 70g
# Handlebars diameter - at least 3/4" (19mm) and not larger than 1" (25.4mm) Material - High impact ABS plastic
Features:
# Accessory Platform
# Two Speakers
# Wiring harness with 2 watt amplifier
# Rechargeable lithium battery
# USB cable for recharging battery
# Mounting hardware and components
# Waterproof
# Warranty - 90 days
Package content: 1 x Complete Audio Bike™

About AudioBike
K and I Enterprises, LLC manufacturers of the Audio Bike is dedicated to making the art of listening to your favorite music while cycling a safe and enjoyable experience.

K and I Enterprises, LLC was founded in 2009 and has over 70 years combined experience prototyping, developing, manufacturing and marketing products for other companies. We are excited to introduce our product that will change how cyclists around the world listen to their music while training or simply enjoying an afternoon bike ride. Our product developer, Kevin, an engineer and avid cyclist came up with the idea of putting the headphones not on your head where it becomes a safety issue for you and those around you, but in the handlebars.
Might be worth your time to look into this. Until today, I'd never seen such a system specifically made for bicycles.
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Old 04-08-10, 10:38 AM   #4
ItsJustMe
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a bicycle audio system, The Audio Bike, becomes necessary.

"necessary" being a relative term? Apparently they're speaking a different English than I am, because I've been riding without a "necessity" for 20,000 miles now.
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Old 04-08-10, 12:55 PM   #5
barturtle
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Quote:
Originally Posted by Fenway View Post
http://www.velofred.com/product_info...roducts_id=225



Might be worth your time to look into this. Until today, I'd never seen such a system specifically made for bicycles.

Add in a B&M E-WERK and you'd be able to charge it on the go from your dynohub... though it'd cost a small fortune.
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