Questions about fixing speakers will be closed as off-topic.

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0
votes
2answers
83 views

How to make an easy oscillator?

I want to make a very simple oscillator that produces the sound of telephone ringing (I want to make a ringer). I will not connect it to a telephone so the quality of the sound is not important. I ...
29
votes
7answers
5k views

How can “purely” electrical circuits emit sound?

Moving membranes or piezoelectric materials obviously produce sound waves, but how can "purely" electrical circuits such as transformers or DCDC choppers (and others) often have an audible noise? Is ...
-1
votes
1answer
51 views

building headphones [closed]

This part of the audio world seems more cool and relatively easy to begin with. Though When I say 'begin with', it implies when you get the necessary parts for that. 1... Now where can I get a good ...
0
votes
1answer
41 views

Amplifying analogue audio from an iPhone docking station

So I have an old iPhone speaker dock that broke after I plugged in the wrong cable and fried the microchips on the circuit board. From it however I salvaged the dock connector itself and a couple ...
1
vote
4answers
77 views

Very low-quiescent (<2mA), 5V, simple “speaker” driver

How can I drive a 30ohm speaker from a 5V microprocessor in a simple, very low quiescent-current (<2mA) manner? The "speaker" is actually a coil, not a speaker - and I'm trying to induce a ...
0
votes
0answers
17 views

Changing bluetooth identification data

I bought this bluetooth audio module from DX.com. Is it possible to change the bluetooth identification name, which appears on the phone to pair, from what is mentioned?
-1
votes
1answer
76 views

Strange sound in speakers when the refridgerator goes standby [closed]

I live in a room which has two power sockets and the following devices, as illustrated in this diagram: https://docs.google.com/file/d/0Byu0T6y2SLeENDdvNGVCWHFBWmc/edit All devices look exactly as ...
0
votes
1answer
62 views

Breadboard layout with speaker

This project is from Arduino's Examples page. The first fritz is from there. I managed to run that example without any issues. However, I had tried keeping the wires together so I tried to run the ...
-1
votes
2answers
72 views

I just bought a one-earbud headset with a microphone, but the jack is too small! I cut it open, what do the wires do? [closed]

So, yeah, this is my first question, yay, but I still have a problem, boo. I was on a rummage sale spree, so-to-speak, looking for a new pair of earbuds as yet another cheapie pair has broken. I ...
1
vote
2answers
71 views

How to make an effective electromagnet?

I am making a speaker with some neodymium magnets and about 3m of copper (insulated) cable. How would I configure this to make it loudest/best electromagnet?
-5
votes
2answers
121 views

2.1 speaker volume controller circuit problem [closed]

I dont know how to connect 4 wires coming out of speaker to the 3.5mm jack whick only has 3 wires in it.... I don't need volume controller. I just want to fix it so that it could work as a stereo ...
0
votes
1answer
128 views

Small but powerful speakers [closed]

Why are powerful speakers like above 20w or 80w not small? I have never seen enough in the market which are under 3 inch but of 80W. The opposite is also true, some big speakers are of low wattage. ...
1
vote
1answer
84 views

Rigging an MRI machine with club speakers and lights

I'm using a magnetic resonance imaging (MRI) machine to fMRI trial subjects while they experience club-like conditions. This means I need loud, high-fidelity speakers, flashing multicolored lights ...
0
votes
2answers
92 views

Main speaker specs to consider

For a 20W amp, what are the determining characters, apart from speaker Impedance and Power rating, that affects a selection. Example Specs - (source - ...
0
votes
1answer
69 views

Prevent Clipping and Hum in class d amplifier [closed]

I got this amp. Now at large volumes, there seems to be clipping. How can I prevent it from happening, rather than never playing at high vol. Can it be done by AGC or Dynamic Range Compression or ...
1
vote
3answers
212 views

Connect lower power speaker to audio amplifier

I want to test an audio amplifier based on TDA7294 and the highest rated speaker I have has 20W @ 4 ohms. How can I connect it to the output of the amplifier without destroying it? I'm thinking I ...
2
votes
1answer
63 views

Amplifiers: IC selection and determining its correct values

I am onto learning and building electronics, and as a start I decided to build audio amplifiers. But of late the search for a good IC is becoming tough as there is an overwhelming amount of options. ...
0
votes
1answer
39 views

Improving IC parameters

There are varied IC's to sift through to get to the one that matches a designers requirement. So i was wondering if its possible to improve an IC parameters, take for eg THD+N, to at-least an ...
0
votes
2answers
146 views

Is a subwoofers RMS/peak wattage rating subject to the enclosure type?

The RMS and peak wattage rating of a subwoofer (or any speaker) show afaik how much power it can safely handle without damaging it. But is this true for both sealed and ported enclosures? (assuming ...
1
vote
2answers
151 views

What exactly does Watts and dB signify? [closed]

Now this is confusing. At some point i read that higher watts does not neccesarily signify high volume sound. An amp rated at 100w and other rated at 50w dows not mean the former is 2 times louder. ...
0
votes
2answers
76 views

Power cables for speakers, how much difference it makes

I have some Audioengine A5+ speakers, and I've been reading from a number of sources that the out-of-the-box power cable is of inadequate quality, and that a $75 cable like the Wireworld Stratus would ...
1
vote
1answer
56 views

Can an electrostatic loudspeaker be considered as a capacitor?

A basic capacitor works as two parallel plates carrying opposite charges and have an electrostatic force holding the charges in place (without making any contact); can't an electrostatic loudspeaker ...
3
votes
1answer
68 views

Problems with Atari Punk Console circuit

I am trying to build an APC using the following schematic: And the output is having some issues. Sound only comes out when the rightmost potentiometer is at 0 resistance, and in that position the ...
0
votes
3answers
158 views

convert self-powered speakers to passive

Is it possible to convert a self-powered speaker into a passive one? (and if yes, how?) My scenario: I have an old pair of PC speakers i'd like to use with my portable MP3 player even if there is no ...
1
vote
1answer
100 views

PC internal piezoelectric vs magnetic-driven speaker

Do magnetic-driven speakers provide better "quality" (more frequencies) than piezo speakers? Do they consume power even when not in use?
1
vote
1answer
59 views

Accurate frequency output through external speaker

I'm creating an application where I want to output a constant frequency through a speaker to test the frequency range of a microphone device I've developed. The problem is, my application measures ...
2
votes
1answer
262 views

Making passive speakers louder [closed]

Just bought some passive waterproof speakers to be ceiling mounted in the bathroom. They're 80 watt, 8ohm, pretty bog standard. The problem is this - when we have e.g. an iPod plugged into a cheap ...
1
vote
1answer
986 views

Playing sounds using WTV020SD mini

I'm a beginner when it comes to electronics. So I want to play sounds using my controller and I am using a WT020-SD-16P I connected the module to my microcrontroller like in the picture. and added ...
0
votes
1answer
118 views

Is it possible to design this circuit with a single potentiometer (L-pad)?

I'm designing an L-Pad for my speakers. They attenuate the signal while keeping a consistent effective impedance, which is necessary for the amplifier and crossover circuits. Typically, these values ...
-1
votes
2answers
123 views

Why can i connect my headphone to my computer whitout additionnal amplification? [closed]

I heard somewhere that computer soundcard can't output high current. That is why computer speaker has amplifier inside them and require some external power to power up the amplifier. But what about ...
0
votes
1answer
45 views

Testing cellphone speakers out of circuit [closed]

What is the best low cost way to test a cellphone speaker out of circuit at the test bench level?
4
votes
4answers
1k views

How are speakers matched with audio amplifiers? (avoiding overloading either)

I know a similar question title has been asked, but I believe that does not answer my question (and I couldn't think of a better way to phrase the question). I'm a bit confused by how exactly an amp ...
0
votes
2answers
633 views

How do I Implement Soft Clipping in an Audio Circuit? Or should I just Attenuate the Signal?

I am designing an audio circuit that takes in line-level audio, amplifies the audio using an amplifier (most likely this 3.1w amp - http://www.ti.com/product/tpa6211a1#parametric) and outputs the ...
2
votes
2answers
1k views

Matching Audio Amplifier with Speaker (Watts Rating/Output)

Background When selecting an amplifier and speaker, you are usually provided ratings or output in watts. For a speaker you get maximum and nominal watts rating, while for an amplifier you get output ...
4
votes
3answers
909 views

trigger alarm with relay from PC sound output

As a total beginner, I have a project of creating an alarm device for a sailing boat. The background is the following: a Mac-mini collects, by means of different computer programs, alarms from ...
5
votes
3answers
280 views

How are loudspeakers able to play many different sounds at the same time?

I know this is kind of a lame question, but I wanted to know how loudspeakers are able to play so many different sounds at the same time. Like, in a song we can hear the voice of the singer and all ...
0
votes
2answers
166 views

Why does the voltage across the speaker oscillate in this circuit?

For my final exam, I decided to work on this circuit design available online. Sorry, I forgot the website. No credit is due to me. When I simulated this over at MultiSim 11, the voltage across the ...
2
votes
1answer
474 views

Connecting headphones to mcu

We need to connect a small speaker- a headphone one, to an Microchip Pic. I don't know whats the resistance of such speaker(it's very small) but I guess it's 8-ohm. (We are only using one headphone ...
0
votes
0answers
212 views

Use Dell Laptop internal speakers with Raspberry Pi

I have some speakers from an old Dell Latitude D600 that I and a friend took apart (his brother had managed to fry the motherboard?!!?) and so we salvaged some parts, one of which is the speakers. ...
4
votes
2answers
178 views

Where can I find specific examples of parameters for a loudspeaker circuit model?

When I look around for loudspeaker literature, I often encounter an equivalent electrical circuit model such as ...
1
vote
1answer
444 views

How can I attach a microphone and speaker to the Arduino GSM shield?

I recently purchased the Arduino GSM shield so that I could build my own low-tech cellphone. Now that I've successfully been able to send and receive text messages, I would like to add the ability to ...
0
votes
1answer
781 views

Volume control wheel problem [closed]

I have a Creative Inspire 2.1 speaker system. The problem is that the right side speaker does not produce proper sound unless I try and turn the wheel to a particular position. I have unscrewed the ...
3
votes
5answers
566 views

What is the best way to make a speaker louder

What are the pros/cons of adding more coils or getting a stronger magnet for a speaker? Are there other methods to make them louder keeping the power supplied to the speaker the same?
0
votes
1answer
183 views

8 ohm amp to 4 ohm speaker

I got amp which produce 2 x 30W output on 8 ohm. Is it possible for each channel to connect 60W 4ohm speaker? Is it possible to do such thing and how I can wire it?
1
vote
1answer
217 views

Combine stereo audio amplifier outputs

I got this receiver. Its output power is 2 x 30W on 8 ohms. My question is: is it possible to combine the power from these 2 channels and connect both channels to a single 60W speaker? And if it's ...
-3
votes
2answers
283 views

why a regular solenoid get hot soon while an audio speaker employed solenoid not? [closed]

I am building a solenoid based equipment. The problem with off the shelf solenoids I figure out is they become hot very quickly. & may burn soon too or at least are not optimal for a constant long ...
3
votes
1answer
455 views

Complex Dummy Speaker Load Impedance

I would like to create a dummy load for this so-called "Deacy Amp": This is a low power germanium transistor / transformer driven push-pull amplifier for driving a small 4 ohm or 3.2 ohm speaker. ...
3
votes
1answer
102 views

What does exactly mean the power specified in a speaker datasheet?

I'm making my own guitar tube amp, based on a Fender 5e3 project. The nominal power of the amp is around 15W. Next step would be to choose a speaker, that I already did, the speaker is a 12 inches (8 ...
2
votes
2answers
206 views

Schematics for device, which reacts to water?

After failed attempt to combine a resistive wetness sensor with a multivibrator ( How to trigger multivibrator (or similar) from collector? ), I'd like ask a direct question. What could be schematics ...
6
votes
3answers
523 views

Troubleshooting Circuit (Make: Electronics Experiment 11)

Would someone be so kind as to help me figure out why my circuit is not working? I am having difficulties with Experiment 11, Steps 2 & 3 in Charles Platt's book. The experiment is designed to ...