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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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0answers
17 views

Attaching a woofer to a amplifier without sub output

Link to amplifier module I am trying to put a speaker system together, i got 4 loudspeakers (full range) 2 for left 2 for right channel audio. i also have a woofer that i want to attach to it but i ...
0
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1answer
61 views

How do I calculate expected output voltage of car audio amplifier with given conditions?

I have a 4-Channel Amplifier rated at 800 Watt RMS per channel @ 2 Ohm load. Channel 3 and 4 are preset to operate a subwoofer speaker while Ch 1 and 2 are set to operate mid-range speakers at ...
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1answer
55 views

How do I process headphones and increase the volume of the sound coming out of the earphones? [on hold]

How do I process headphonesand increase the volume of the sound coming out of the earphones?
0
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3answers
92 views

Can a 30 watt (RMS) speaker work with a 5V 2A power supply?

I am thinking of using a speaker with Raspberry Pi 3b+ which has a 5V output pin. Speaker data: Power rating (RMS) 30 Watts Power rating (max) 60 Watts Impedance 8 ohms Will this speaker will ...
0
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0answers
49 views

Replacing AC transformer

I've encountered a problem while replacing the AC transformer of a soundsystem composed by 3 loudspeakers (1 bass loudspeaker (4Ω5W) and a couple of highs(can't open to see the specs of these)) and a ...
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3answers
103 views

Is it possible to wire car speakers straight to a 3.55 mm jack? [closed]

Is it possible to re-wire car speakers (model JBL GT7-5) to a headphone jack (3,55 mm stereo plug) directly without an amp? And if not, what do I need to-do? This what I know about the speakers: ...
1
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2answers
146 views

Device to loopback mic to headphones

I have an issue with my headset. I can’t stand not being able to hear myself speak. I’d like to build a passive device to loopback the mic to the headphones that would be plugged in-line between the ...
-1
votes
1answer
57 views

Subwoofer amplifier IC repair? [closed]

I bought a subwoofer as is. The sub worked, but the speaker terminals didn't. I took a look inside and the amplifier IC(TDA 7265) looks like it shattered somehow. Any ideas what could have ...
0
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1answer
34 views

Can I use a multimeter to measure audio signals by testing amperage or voltage?

I'm in the process of adding a subwoofer to my car. In doing so I spliced in a T harness to audio wires from the head unit and routed the wiring to where I Will be placing the Amp. I tested the ...
0
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0answers
37 views

Allowing different inputs without needing to alter gain every time; a situation for a pre-amp?

The goal I am attempting to make a small diy bookshelf speaker system using 2 16ohm, 25 watt speakers and a 2x25 watt class d amplifier board. If it matters, the amplifier board is a class d amplifier....
0
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1answer
69 views

Why would this Class D Audio Amplifier have low current draw?

Disclaimer: Saying I have very little knowledge of electrical engineering theory is an overstatement. I very much appreciate your help and patience. I'm not finding any questions similar to mine, but ...
0
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1answer
43 views

Want to create a box that allows speaker switching with my amp

I came up with an idea that is likely not worth the trouble, but I love tinkering so I'm curious to see if it's possible. In short: I have a guitar amp head. It requires 16 or 8 ohms speakers. For ...
0
votes
2answers
32 views

Can I connect TV internal Speakers to 3.5mm plug?

I had 48" broken TV with good speakers. I removed them from mainboard where each comes with 2 pins. Can I connect them to RCA male and then connect to 3.5mm to RCA adapter where I can use it for ...
0
votes
2answers
40 views

Measuring unknown speaker/piezo element

I have an assortment of small speakers/piezo elements and I'd like to connect them to an arduino without damaging either. I don't know what characteristics the elements have or what to look for but I ...
0
votes
0answers
31 views

Speaker crossover: can wrong ESR cause amplifier to clip?

I have an old pair of speaker I decided to revive. I recapped the crossover with new caps but now my amp keeps clipping when I turn the volume a little bit high (and it was not before). I wonder if ...
0
votes
0answers
23 views

Static noise on a TDA7492 Bluetooth sound amplifier board?

I have a KKmoon TDA7492 bluetooth sound amplifier board with an AUX interface (https://www.amazon.co.uk/gp/product/B075QZ19VJ/ref=ask_ql_qh_dp_hza). The issue I have is that whenever I connect ...
0
votes
1answer
35 views

Battery wiring for DIY speaker question

could anyone tell me if i can wire the 12V battery to get around 20V out of the whole set? Right now it's wired in parallel which increases capacity but i need around 20V for the amplifier to have ...
0
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0answers
67 views

Headphone Jack Detection Mechanism?

I am trying to build a circuit that turns on a speaker when headphones are unplugged (so it like how our phones detect when our headphones are connected). To do this, I was thinking of simply using ...
0
votes
1answer
94 views

speaker problem with high volume

I am trying to build an audio system . I have a speaker which is rated 10 W and 8 Ohms . I am using a circuit from datasheet of TDA2040 with a pre-amplifier circuit with the microphone . when I ...
0
votes
1answer
56 views

What is the purpose of the upper inductor in this speaker diagram?

What is the upper inductor symbol in series with the woofer used for in the below diagram? It seems the tweeter and the woofer are both I guess 8 Ohm and that's why the 4 Ohm parallel equivalent ...
0
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0answers
26 views

Unwanted buzzing and reduced volume in a basic speaker set

I have the following device, which basically contains 18 songs. we can play the next song by switching the switch on and off. It also has a volume control. Recently it started to buzz a lot and the ...
1
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2answers
70 views

Speakers make humming sound [closed]

I don't know if this is the correct forum to ask this, but I have a problem with my audio set up. The setup goes as follows: PC -> external audio card (via usb from pc) -> stereo equalizer mixer (via ...
3
votes
2answers
187 views

Can I convert a mini guitar-amp into a portable auxiliary speaker?

Being a guitar player, my brother got me one of those guitar shirts for Christmas that has a board with pressure sensors attached to it and an actual miniature amplifier. When the sensors on the board ...
0
votes
2answers
255 views

Audio amplifier for 600 ohm headphones

I am working on a design which must drive an audio output into 600 ohm headphones (aviation headsets). Normally, I would just use an off-the-shelf class D amplifier but I can only find ICs designed to ...
0
votes
6answers
181 views

How do I set my speakers out of phase?

A little bit of context: I'm doing a project for my physics class where I could choose the topic, and I chose to do phases in sound and noise cancellation (wavelengths and frequencies). Essentially, ...
1
vote
2answers
148 views

Controlling Speaker Output with Transistors

I am awfully new to circuit design and a little confused on some of the things I can and cannot do here, so please bear with me. In a simple Arduino project, I am trying to control the output of an ...
1
vote
1answer
30 views

Increase working hours for an external speaker

I have an external speaker which uses one 18650 cell (3.7V). I would like to increase the working hours by adding one more cell of the same type. I have two questions: Should I add the second cell in ...
3
votes
1answer
196 views

Speaker crossover wiring

Came across some old Arcam speakers (cut open) and using the parts to build a bluetooth speaker box. Only problem is I can't figure out the wiring on the crossover/filter. The original speakers are ...
0
votes
1answer
74 views

Can a speaker be driven by a DC signal?

I’ve always been under the impression that speakers require an AC signal. The reason being that positive and negative current are required for the electromagnet to properly vibrate the diaphragm. ...
0
votes
2answers
59 views

Adjusting the voltage for a small speaker

I have a 4Ω 3W speaker and I plan to use it with MAX98357A amplifier. I need to make sure the speaker receives optimal voltage. When I test the voltage output from the amp playing nothing, I get 2.5V. ...
1
vote
1answer
157 views

Can't find source of hum in left channel of bluetooth speaker that I built

I have an RN-52 bluetooth audio module - https://cdn.sparkfun.com/datasheets/Wireless/Bluetooth/rn-52-ds-1.1r.pdf I am using it with this amplifier - https://images-na.ssl-images-amazon.com/images/I/...
1
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0answers
88 views

Resistor for buzzer current consumption limiting calculation

I would like to know how did the circuit designer of the circuit in the image calculated resistor R100 value. My guess is that the 100ohm resistor is to limit the current to ~20mA. I have tried to ...
1
vote
1answer
42 views

How to charge a battery when the charging socket is broken? [closed]

First of all I'll explain my situation: I own a Bluetooth speaker, more precisely this one: http://www.leicke.eu/en/products/EP18108 Due to my clumsy hands it fell while the USB cable was connected ...
-1
votes
1answer
36 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
votes
2answers
85 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
votes
1answer
203 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
111 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
votes
4answers
59 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
227 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
vote
0answers
67 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
votes
1answer
81 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
votes
2answers
199 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
votes
2answers
158 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
77 views

An Audio Module heating up

I am using an Audio Module. The schematics of the module can be found below. The module uses a audio amplifier (TS4990IST) and STM32F0 MCU. I found out when ...
0
votes
3answers
85 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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votes
2answers
60 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
votes
3answers
193 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
99 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
votes
2answers
90 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
110 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 ...