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Old 24th June 2012, 10:46 PM   #1
diyAudio Member
 
Join Date: Jun 2012
Default Personal project - headphones. Please help!

I built a pair of noise blocking headphones from a pair of 3M Jackhammer earmuffs and some headphone speakers pulled from a set with a dead 1/8" plug. I'm getting sound with a feed from my laptop but it's grainy and distorted. Any advice would be appreciated, I'm a noobie at this.
Construction notes:
Both speakers are connected to a mono 1/4" jack. Both coated lines go to the ground pin(?) and the copper lines go to the tip pin.
The feed from the laptop comes through a 1/8" stereo plug to 1/4" mono plug that I hacked together with speaker wire.
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Old 25th June 2012, 10:47 PM   #2
dangus is offline dangus  Canada
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Join Date: May 2004
Location: Vancouver Island
Connecting stereo to mono like that will short the amplifiers outputs together, which could cause problems. Try using just one channel from the laptop, or rewire the headset for stereo. Or use a couple of resistors (maybe 100 ohms) to sum the left and right outputs to mono.
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Old 26th June 2012, 02:53 AM   #3
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Join Date: Jun 2012
@Dangus - Thanks for the advice. Where would I solder on the resistors?
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