Questions tagged [speakers]
A speaker is a device which converts an electrical audio signal into a corresponding sound. Questions about fixing speakers will be closed as off-topic.
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Can a Computer Motherboard Speaker/Buzzer output voltage switch a relay?
Most 12v relays I've come across require 4v to switch on. I don't have a voltmeter handy to test my computer motherboards voltage output, and if it did give out +4v and held a long enough duration ...
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Audio: 2 Speakers * 200 Watt versus 1 Speaker * 400 Watt?
What is the difference between 1 speaker of 400 watt and 2 speakers of 200 watt? All the speakers are 12 inch.
Of course, I know the difference is mono/stereo. But I want to play in a little band ...
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Do it yourself: baby call monitor [closed]
This is kind of a hobby project (I'm an informatics professional but I always was fascinated by electronics). I want to build a baby call (basically, a one way intercom); to simplify the electronics (...
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Nokia X6 headphone not working
I am trying to repair a Nokia X6 headset in which one earpiece is not working. Any help on the questions below would be greatly appreciated.
Is there a way to test the earpieces with a multimeter to ...
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How to determine appropriate speaker cable gauge?
When wiring speakers to a 100W consumer-grade amplifier, how do I select an appropriate gauge cable (for 8-ohm speakers)?
Also, if 14 gauge cable is sufficient, what harm is there in using a heavier ...
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Any truth behind "multipole" technology in audio signal transmission?
After reading this question about ultra-expensive audio cables, I was reminded of a product that we sold at a company I used to work for.
MIT Cables makes these "audio interfaces" which go a step ...
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How do you tell the difference between speakers and microphones?
How do you tell the difference between speakers and microphones?
I pulled the following two components out of an old cell phone
and cannot tell them apart.
Each have two metal contacts on the back.
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I'd like to swap the speaker on an electronics kit for a reed relay
Morning all, I've built the Velleman IR Light Barrier kit:
http://www.vellemanusa.com/us/enu/product/view/?id=350693
It currently beeps when the light barrier is broken, but I'd like to remove the ...
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ipod dock upgrade for inmotion speakers unit
I have an inmotion speaker set with embedded ipod dock circa 2006. I love it and it sounds great. But the dock does not work with the newer model ipods / iphone etc. I'd like to try my hand at hacking ...
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Can I use a subwoofer as a linear actuator?
I need an actuator with a few mm of travel and it has to be very responsive to a very low frequency (DC 10 Hz) sine wave generated by a function generator.
I'm thinking of getting a cheap subwoofer ...
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BASIC Stamp and external speaker
How to connect a real external speaker through a classic Jack connecter to the Board of Education?
So that I can send it FREQOUT instructions?
(instead of using the piezo-electric component)
user3442
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Control 5 V buzzer using 5 V microcontroller (which can't drive it directly) and a single 5 V power supply?
I have a PB-12N23PW-05Q buzzer and I'm trying to use it with ATmega 162. I can't connect it directly to pin, because from what I've read from 162's datasheet, it can source at most 20 mA. The buzzer ...
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Roland Microcube guitar amp damaged beyond repair?
My power regulated ac/dc adapter broke the other day and my friend thought it was a good idea to cut the wire from the mains adapter, trim the ends and plug this directly into the mains. he then ...
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Headphone wire color coding
How do I tell which wire is which if I have a copper wire, red and green coded wire? Is the unshielded copper wire ground?
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building an audio amplifier for 2.5 ohm speakers
I recently dug out of my box o' stuff a pair of seemingly decent 2.5ohm bookshelf speakers. I wired them to an old mp3 player I have and while they sound good at low volumes, I get lots of distortion ...
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