Questions about fixing speakers will be closed as off-topic.
0
votes
0answers
89 views
Convert Iphone 3.5mm pin to standartd Samsung Android 3.5mm pin
This is a simple question.
I want the new Iphone EarPod to work with Samsung/Nokia phones.
I tried to use the headphone to Samsung phones. Here is the result
Here is the Universal 4-pole Cell ...
3
votes
0answers
47 views
Handling Transient Currents on USB Powered Devices
I'm working on a USB-powered speaker design and could use some thoughts or design inputs from the community.
The data part is pretty simple - USB powers an I2S bridge that talks to an I2S amplifer. ...
0
votes
2answers
511 views
Connect speaker output to microphone input
What exactly is the difference between a microphone signal and a speaker signal?
I want to make a simple cable to connect a PC speaker output to a microphone input. Does anyone have a good idea or ...
-3
votes
1answer
54 views
Power supply for speakers [closed]
I have two big speakers with only bare wires for input and a small alarm clock with a low voltage output. I was wondering how I would supply more power to the speakers (there are two of them)? I was ...
0
votes
1answer
256 views
Running small external speaker via 3.5mm connection
In short the question is: how can I get the audio from the 3.5mm port of my Raspberry Pi board to play through a small external speaker? Space is a concern in this project I will only have a few ...
8
votes
1answer
239 views
Are the two wires of a speaker identical?
I am working with speakers for the first time. There are two lines, one black and one white.
Are they the same? Is one defined as hi-voltage and another as low?
-1
votes
2answers
47 views
Mono audio track on two speakers
I have a mono audio signal which I want to output on two boxes. Can I just connect the speakers in series or parallel (which?) or do I have to do something more advanced (and if so, what)?
2
votes
0answers
204 views
Wiring a 1920s intercom to a contemporary door-entry phone
I have recently purchased a 1920s wall-mounted intercom:
I would like to connect this unit to our existing "4+n" door entry phone system, replacing the cheap plastic handset that we currently use ...
1
vote
1answer
80 views
Confused about the way this speaker is wired
From this article:
I don't understand why one end of the speaker is connected to the + of the battery. If the output of the 555 goes into one end of the speaker, shouldn't the other end of the ...
1
vote
2answers
213 views
Combining Left and Right Hook Speaker Wires Into One Speaker
So I have an mp3 player, http://dx.com/p/94814, and the mp3 player comes with a left and right speaker output. For my equipment, I only have one speaker, not two. Can I just combine the left and right ...
1
vote
1answer
230 views
Maximize performance LM386 and 4Ohm speaker
I'm designing a very simple circuit which contains a microcontroller, an LM386 and a speaker.
I've previously asked a question:Help in designing a speaker driven by an LM386
and the answers helped ...
1
vote
2answers
209 views
What should attaching another magnet to the back of the speaker magnet do?
The dupe speaker I have here 8 \$\Omega\$ 0.5W had it's magnet split from the coil/cone. So I did something thoughtless - attached the speaker magnet to the back of the other speaker (same specs).
...
4
votes
1answer
316 views
Why are loudspeakers manufactured in various impedance values?
I'm acquainted with the concept of impedance matching in audio applications, but there's something that eludes me. First, a snippet from a home theater site:
Loudspeakers have impedances of 8 ...
1
vote
0answers
162 views
Microphone and speaker types in a DSP audio processing application
I am attempting to design and build a PCB from scratch. The hardware is meant to be used in a DSP audio processing application. What I want to achieve is to be able to collect sound through a ...
-3
votes
2answers
95 views
loudness of speaker [closed]
Given a speaker is 30 watts, which is louder, the one with higher current through it or the one with higher voltage across it. Lets say both speaker has variable impedance (so we can vary both current ...
-1
votes
2answers
172 views
High wattage speaker using low wattage amplifier [closed]
If I have a 250W amplifier and I want to use a set of speakers:
subwoofer x 1, 4 ohms x 1
mid-rage x 1, 4 ohms x 1
tweeters x 2, 8 ohms x 2
with a combined handeling wattage that surpasses 250W. ...
0
votes
1answer
209 views
Testing a 0.3W, 8ohm speaker?
I have a 0.3W (RMS), .8ohm speaker coil + cone that I want to test using various music. However, the 8ohm impedance is lower than typical earbuds (24ohm), and also I can't find headphone jack power ...
2
votes
4answers
502 views
Square wave / Sine wave is more audible
Consider you have 50 Hz both square wave as well as sine wave put on to a same speaker at different time. Which signal is more audible and what is the reason behind that ?
We know that by taking the ...
0
votes
0answers
36 views
usb thumbstick speaker [closed]
Does anyone know of a good USB speaker that's the size of a thumbstick? As in, it looks like a thumbstick, plugs in like a thumbstick, but is actually a speaker? I don't think I've ever seen one of ...
1
vote
1answer
225 views
connect headphone to bluetooth module
I want to connect an old phone to a Bluetooth module. I first thought to use the original speaker and microphone, but the quality is quite bad, so I decided to rip apart an old PC-microphone and cheap ...
0
votes
0answers
275 views
Best Speaker/Buzzer/Noise Maker for my project?
the project I am working on plugs into the headphone port of a cell phone and will be used over night. However, when you plug in anything to the headphone jack of a phone, the alarm gets rerouted to ...
2
votes
4answers
2k views
What is the typical max voltage out of a PC speaker Jack?
I'm trying to use CD4051BCN chip to channel some speaker outputs from a computer. these chips handle analog voltages from +/-5V.
What is the audio line max/min Voltage coming out of the desktop PC? I ...
-5
votes
1answer
146 views
Headphones with 8 ohm speaker [closed]
How can I build headphones that could play music and fit into a 4mm headphone jack?
An example of this would be the headphones that come with an iPod.
0
votes
1answer
198 views
How can I hack a Bluetooth mono headset into a speakerphone?
I tried adding a speaker but the audio is too quiet for obvious reasons. I would like to use an 8ohm seapker and i think the headset uses a 32ohm earbud speaker.
What kind of amplifier would I use? ...
-3
votes
2answers
646 views
6 channel Logitech Z-680 surround sound system 1 speaker blown and need help replacing fuse inside sub-woofer [closed]
I've Logitech Z-680 surround sound system for my intel core2 duo computer.
The problem I'm having is I can't get the sound to work on my front right speaker. All other speakers work just fine. So at ...
1
vote
1answer
624 views
Speaker wires to 3.5mm plug [closed]
I have 4 speakers wires:
left red wire
right red wire
left black wire
right black wire
Like this:
I want to take those 4 wires, and make a 3.5mm stereo RCA plug for my iPod. So that I will be ...
0
votes
1answer
83 views
Can anyone identify this Knowles Donau microspeaker connector?
Can anyone identify this type of connector? I need to purchase a bunch of these connectors.
0
votes
3answers
346 views
Surface Speaker
Does anyone know what the technology in the "turn any surface in to a speaker" speakers is called?
It is all propriety, patent protected stuff and you just use pre made modules or is it possible to ...
10
votes
6answers
3k views
Why does GSM cause speakers to buzz?
Based on numerous internet resources, speaker wire acts like an antenna which picks up the transmitted signal of nearby cellphones and causes the speakers to buzz. But I'm not really buying that...
A ...
0
votes
2answers
740 views
Playing sound with a picaxe
Is there any way to use a PICAXE (08M2, to be precise) to play a small sound file (Not beeps and buzzes, but actual sound), perhaps loaded from an i2c EEPROM chip? I'm thinking something similar to ...
-1
votes
2answers
180 views
UK plug for American speakers not working [closed]
I have a new speaker and subwoofer set which I'm almost certain are not defective.
They came with an American plug but I live in the UK, so I ordered a UK adapter with the same voltage and amp output ...
-1
votes
1answer
166 views
hardware component for playing mp3 [closed]
I have a software + hardware project that I need some help with. I built an algorithm that finds certain patterns in audio, the system works great, I reproduce the audio using a simple mp3 player + ...
1
vote
1answer
699 views
Combine left and right channel at speaker level
I recently started a project to build an inexpensive speaker/amplifier that is portable enough to take outside easily. I purchased a center-channel speaker from a thrift store for $6 and an amplifier ...
2
votes
2answers
505 views
How to control a speaker
We are trying to produce a sound wave with speaker. We also need to be able to control the frequency (we don't have specific numbers, about 50-500Hz).
As far as we are concerned we are looking for a ...
4
votes
1answer
274 views
What is the physical meaning of resistance and power ratings of a loudspeaker?
What exactly does it mean when it is specified that internal impedance (or resistance?) of a loudspeaker is 16 \$\Omega\$? Is that ohmic resistance of the copper of its internal winding? Or is it ...
0
votes
2answers
913 views
Tiny speakers, used in headphones - what are these called?
After having searched Mouser and a general search for "tiny speaker", "small speaker", "headphone speaker", and not having found what I am looking for, wanted to see if someone here can help me find ...
1
vote
1answer
196 views
Adding microphone/amplifier to Gumstix Overo Earth COM?
I am new to hardware hacking in general. I have a Gumsitx Overo Earth COM and a Palo35 expansion board with audio in/audio out capabilities. According to Gumstix's wikipage on audio input, the ...
2
votes
3answers
818 views
What does the third wire on this speaker do?
I salvaged two large speakers from an old iPod player/alarm clock device. Each of the speakers have three wires tied to it. There is a positive and negative and a third which I assume is ground since ...
1
vote
1answer
154 views
How is it possible to feed the output signal back to input using a TRRS connector
I want to be able to "play" the output signal back to the device (in my case an XPERIA X10 which i think uses a standard TRRS plug) so that everything that is output by the device comes back to it. ...
2
votes
2answers
362 views
Shouldn't these headphone wires be insulated?
My headphones sometimes don't put out sound in one of the channels, so I opened them up and this question came to mind:
Shouldn't the 3 copper cables that connect to the mini-jack be insulated? One ...
1
vote
3answers
837 views
Testing an 8-ohm speaker
I have been trying to test an 8Ω speaker, but I am having some difficulties. I have tried to test the circuit using multisim using the circuit below:
I used the 8Ω resistor in the place ...
1
vote
1answer
182 views
Can I plug 4 Ohm speakers to 16 Output directly?
I have Samsung YP-U3 player with Earphone Output 20mW (16Ω) and I want to connect it with speakers taken out from my old laptop that are two 4Ω (1.5W). Can I do it directly or speaker will break down ...
1
vote
4answers
1k views
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 ...
1
vote
1answer
519 views
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 ...
1
vote
1answer
254 views
Do it yourself: baby call monitor
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 ...
1
vote
2answers
431 views
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 ...
1
vote
3answers
3k views
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 ...
1
vote
4answers
462 views
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 ...
2
votes
2answers
1k views
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 ...
2
votes
1answer
89 views
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 ...
