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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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1answer
25 views

3.5mm, 4 conductor, in-line, plug

I am struggling to find pictures of the plug I bought to figure out where to connect speaker wire to. It is a TRRS 3.5mm plug ...
0
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0answers
90 views

How can a subwoofer speaker cone be made to produce a gust? [on hold]

I have a 12 inch subwoofer speaker and I need to use it to produce a sudden gust of air. I want to wire it up so that it can move from its minimum position to its maximum position in short time, ...
0
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2answers
55 views

Using a microphone as a loudspeaker [closed]

Can I get an audible sound wave if I drive a microphone with an electrical signal with the frequency lying in the audible range? The vice-versa case is possible, although, loudspeakers are not very ...
0
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2answers
36 views

Can I replace an 8Ohm 1W speaker with a 8Ohn 0.5W speaker?

I don't know power is handled through speakers. Can I replace this 1W speaker with a 0.5W speaker in a computer? From what I understand, it's the load which determines how much power something will ...
3
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1answer
67 views

Loudspeaker volume issue

I am building a microcontroller based circuit that generates some sound out of a loudspeaker. Basic problem: Not enough volume out of loudspeaker Strange stuff: Volume is louder if I use a LM386 ...
0
votes
1answer
104 views

Why doesn't this battery explode?

So I know that it sounds very stupid, but I'm trying to test the limits of a 12 dollar bluetooth speaker. I disassembled the whole speaker and replaced the original 3 watt speaker with a 70 watt one😂...
0
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4answers
42 views

How will an audio power amplifier output voltage behave when loaded?

If an audio power amplifier would power a 8 Ohm speaker through its proper(?) output and if the volume knob is set such that the amplifier outputs 8Vrms 440Hz sine wave across the speaker leads the ...
4
votes
2answers
156 views

Which is broken, the amp or the driver of this subwoofer?

My subwoofer (with an internal amp) is showing difficulty reproducing low frequency sounds (sine 30Hz ~ 70Hz). As I lower the frequency, around 70Hz, I start hearing very slight distortion (hint of ...
1
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0answers
62 views

Crackling sounds when both speakers are connected?

I have finished my amplifier using the LA4597 chip following the schematic below. So far everything's working fine. However, I noticed something. Some songs crackle the speakers (probably because of ...
0
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1answer
41 views

Amp for tweeter in bi-amping

I gonna make some 2-speakers Bluetooth PA system, and I chose bi-amping way with active crossover for do it. I have an 60W amp (battery limits) for my woofer. Skipping all the problems on my road to ...
0
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2answers
110 views

Stereo or bridged mono? (LA4597)

I have a stereo amp (LA4597) and is currently wired in a standard stereo circuit. Recently, I read an updated answer from one of my questions stating that wiring the amp in bridged mode doubles the ...
0
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2answers
101 views

Is this speaker crossover design correct?

This is the schematic for 2-way crossover, the speakers I want to use are: Woofer: https://thomann.de/pl/harley_benton_15tb065_b4.htm?o=2&search=1537173360 Tweeter: https://thomann.de/pl/...
0
votes
1answer
31 views

Hexabitz Module H07R4 (Audio Module) heating up

I am using Hexabitz's Audio Module H07R. The schematics of the module can be found over here. The module uses a audio amplifier (TS4990IST) and STM32F0 MCU. I ...
0
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0answers
43 views

How to connect mic&speaker signals on different platforms?

I posted a question about carrying a line signal over 10-meter cable to transmit and receive human voice from a handset in a building to a GSM/GPRS modem (Quectel M95F). The main goal is to do a GSM ...
0
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3answers
59 views

Replace 3.5 mm AUX with USB

This might be a touchy subject, but bear with me. I have a 2.1 speaker set which has typical 3.5 mm AUX input and output. The problem is that sometimes the left and/or right audio channels cut out and ...
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2answers
55 views

Hifi soundstage decentered [closed]

I have spent hours trying to workout why the soundstage, the center of the sound between my speakers, is decentered to one side, in other words the drums vocals bass are normally in the center of the ...
0
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3answers
93 views

Potentiometer/attenuator between amp and speaker

I have a setup where an amplifier with 2 channels drives four 8 ohms 80 watts speakers on each channel. The amplifier has a single volume knob which controls volume of both channels at once. What I ...
0
votes
1answer
61 views

Connect common ground stereo to a device with different ground for each channel

I have an old stereo that I want to resurrect and add Bluetooth to it. For that, I bought a Bluetooth module, this one: https://www.aliexpress.com/item/PAM8403-Wireless-Stereo-Audio-Receiver-Module-...
0
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2answers
57 views

Hummm Sound from stereo speaker when used on inverter

I have a normal 2.1 Stereo speakers with an aux 3.5 cable coming out as input source, i plug this aux cable to a source when needed else it remains hanging, whole speaker this is plugged in to an ...
3
votes
2answers
58 views

Relation between the impedance of speaker and amplitude of sin wave?

I have an oscillator producing a sine wave with amplitude 3 V (so it oscillates between +3 V and -3 V). The oscillator is at about 500 Hz. I connected this to an 8 ohm speaker and I hear the sound ...
0
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0answers
40 views

Battery and power supply to power portable speaker

I’m building my first portable high power speaker for both indoor and outdoor. I have a 7s Li-ion battery pack with protection board and two 12V PC power supplies in series. My plan is to boost the ...
0
votes
1answer
63 views

Transistors as Switch and Amp to control LED strip

I am controlling an LED strip based on audio input from my phone. I am having some good results, but not exactly what I want, and my ignorance of transistors is holding me back (I'm a Mech E major ...
0
votes
1answer
157 views

Sine wave noise on the 8-ohm speaker

I'm trying to transmit and receive voice to my GSM modem over a 10-meter cable from a handset connected board using TEA1062 line drivers. But when I connect a speaker to the handset, a sine wave noise ...
0
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0answers
47 views

Speaker and receiver impedance matching

I have feeling, I will get the following "this is not the right forum to ask this question." Nevertheless, I will try: I have a mixture of 6 ohm and 8 ohm speakers. Should I set my receiver to 6 ohm ...
0
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1answer
53 views

Speaker Wire Connection

I have some Phillip speakers I got from a friend, but they forgot to give me the amp. I'm hoping to still use these for some projects, but noticed the speaker wire coming out has two terminal, one ...
1
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3answers
167 views

Understanding how an audio amplifying circuit works

I'm trying to learn electronics and electrical engineering through building small practical projects (toys mostly). I've been learning a ton from adafruit and spark fun, but I'm trying to branch out a ...
0
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1answer
135 views

What all do I need for a simple speaker circuit?

I'm trying to use a 555 timer in astable mode to play a square wave sound out of a small speaker, but I'm having trouble understanding all the components I should use. I think I need something like ...
1
vote
1answer
58 views

Can capacitors in speakers (Yamaha) be replaced by slightly different ones?

Now, I know that people used replacement capacitors which has a Capacity of 22nF, 250V ac and 630V dc +/-5% The Capacitor was labeled C515 on the board it is soldered on. I was wondering how ...
-1
votes
1answer
69 views

Canceling ambient sound [closed]

I've just moved into a new flat and I noticed that there is a lot of car noise coming through windows. I know, I could just close the windows, but that's a less interesting approach to a problem. So ...
1
vote
1answer
62 views

Potentiometer Range in Speaker Frequency Response Curves

In several speaker spec sheets from CUI a frequency response curve is given, such as in the CLS0231MA-1: Notice the two y-axes: one for the potentiometer (0 dB to 50 dB) and one for the DUT (0 dB to ...
0
votes
2answers
43 views

“mapping voltage” on an analog potentiometer using a voltage divider

I'm working on a simple project to learn electrical circuits. I built a little sound box that will play tones when you press buttons. The battery provides 3volts and the "power boost" is a buck ...
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2answers
116 views

How does an electrical speaker determine amplitude and frequency? [closed]

So, I know that a DAC converts coded binary signals into analog signals, but what sort of thing determines the pitch and amplitude of the outgoing sound? Does the DAC use a clock for frequency and ...
1
vote
1answer
142 views

Alternate to LM386 for 3.3V system

I'm trying control the volume of a small speaker (8Ω, 1/4W) in a 3.3V system using a potentiometer wheel (10kΩ). I've done this in the past using an LM386 in 5V systems, but the project I'...
1
vote
1answer
87 views

Amplify 1W output to 3W

I'm trying to build an audio circuit using an WM8960 chip from Cirrus Logic based off a 2 mic Raspberry Pi board from Seeed studio. The chip outputs 1W per channel into an 8Ohm load but I'm finding ...
1
vote
2answers
77 views

Transistor Power Dissipation / Overheating

I am working on an audio project in which a voltage controlled square wave oscillator drives a 5W 4Ohm Speaker. I am using a unipolar 12V supply. In order to limit the current going through the ...
0
votes
1answer
67 views

Will connecting an electronic instrument's output to a computer's microphone input overload the computer?

I would like to record the demo music on our Yamaha CVP 201 electronic piano, preferably by connecting it directly to a recording device's input. Right now, I have a 3.5mm splitter to separate the L ...
1
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1answer
86 views

Is reversing speaker polarity worse than listening off center?

I am certain that for all frequencies above about 440 Hz, there is only about a few cm of listening zone within which the polarity of the audio makes any difference. Am I wrong? If you connect a ...
0
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2answers
266 views

What is the Danger in Plugging an 4 Ohm Speaker into an 8 Ohm Amplifier?

I know it is a commonplace warning not to plug in a 4 ohm speaker to an amplifier rated for 8 ohms. I am wondering what is the actual danger that is presented by doing this in an electrical sense. ...
1
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0answers
25 views

6 SPEAKERS one amp

I just joined stack exchange to ask this specific question. I have 6 speakers. All 6 are 8 ohm speakers. There are 2 pairs (Speakers 1&2 are pair A and speakers 3&4 are pair B and then 2 ...
0
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1answer
43 views

Controling where sound goes (darlington array)

source of sound (dealing with multiple sources) and six speakers. I want to control to which the sound goes. The system has a DC offset with both sides of the wave within positive range Question is ...
1
vote
3answers
518 views

Max Voltage for Speaker of Given Power Rating

I have been looking into the design of loudspeaker drivers and would like to know how to determine the maximum voltage which can be delivered to a given speaker. From Ohm's law we know that P = V^2 / ...
0
votes
2answers
174 views

Why is my 2n3904 amp bass-boosting?

simulate this circuit – Schematic created using CircuitLab Hello! I have constructed my very first amplifier with 2n3904 transistor, based on the diagram and suggestions from comments from ...
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2answers
161 views

What is the most useful sine wave oscillator circuit? [closed]

I need to obtain two different pure sine wave with frequencies 3kHz and 5kHz. Only allowed components: all type of op-amps, resistor, capacitor, inductors, diode, transistor. Sine waves will be ...
0
votes
1answer
36 views

Laptop Speakers Drawing a Lot of Power

My laptop broke a while back, so I opened it up. I took the speakers out today, and hooked them up to one of those cheap 3 watt PAM amplifier modules. To my surprise, it didn't work that well. Above ...
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votes
1answer
88 views

How many watts does your phone put out [closed]

I am building a custom speaker to play music on from my phone and obviously need to run an amplifier between the speaker itself and my phone. I'm wondering if anyone knows how many watts a phone ...
0
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0answers
61 views

How to use a loudspeaker?

As I found, speakers have complex impedances, not simply resistances. As the impedance value change with changin frequency, input with different frequencies will face different impedances resulting in ...
0
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0answers
110 views

How do I stop excess PAM8403 distortions?

I have a pam8403 amp that's exactly like this one. It is connected to my raspberry pi zero gpio pin which outputs 8 bit pwm signal for sound. When I play a sound, I can hear it from my 3 watts 8 ohms ...
2
votes
1answer
439 views

How many watts does tweeter needs

I have a speaker with the following specs: Max. power - 600W Impedance - 4~8 Ohm Freq. response - 45Hz-20KHz Sensitivity - 98dB/W/M The tweeter of the right speaker is not working so i want to ...
0
votes
1answer
46 views

Crossover for vintage 16ohm horn paired with 4ohm woofer

I'm in the process modernizing a 1960s Magnavox Astrosonic stereo console. I'm wanting to keep the speakers as they look to be in great shape. It's got two 12 inch woofers (581206-1) that test (via DC ...
0
votes
1answer
113 views

Creative T3100 speakers input mod

I have made an input mod to increase the input impedance of my Creative T3100 speakers. But now even if the potentiometer is at the lowest level some sound from the input is coming off from the ...