Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
I have this jbl clip 3 of a costumer, looks like it has a little humidity but all components looks right and the speakers is good too.
The device is on and you can connect it to the phone but there is not any sound
I’m looking for the schematics
My KRK 10s subwoofer has a problem where at a certain volume/power draw it will make a small pop and cutout completely. Once the volume lowers down the speaker will com back and continue to work as usual as long as it's below the volume it cuts out at. This will consistently happen at (I think)...
Hello all I have been attempting a repair on a Archt one speaker for about a month now and I just can’t figure it out. I’ve probed around, I’ve tested the speakers in a home theater just to make sure they work and they do just fine, but when put together I get no sound through BT or through Aux...
Hi,
I have a W-King D8 Bluetooth boom box which I'd like to modify with some external speaker output jacks and some buttons to switch the internal speakers on and off.
From factory the specs of the boom box are:
-Power Input: DC 5V
-Speaker Output Power: 2 x 25W ( confirmed by Youtube channel...
Turbo sound Ip 3000 schematic needed?
I have been trying to get Music Tribe Turbo sound IP 3000 schematic I got 1 that is not turning the power supply for the amp using ic tda8954th by 4 the mode pin has no power it had turn one a few time but when it gets hot the amp cut off I was told the 3rd...
Hi All!
Never done a forum post before but I thought I'd give it a shot to see if anyone out there had any insight into an issue I'm running into on a repair I'm doing!
QUESTION:
I need help in identifying what the specifications are on this power transformer (pictures below!).
It appears...
I want to make two new speakers fo my computer. I have found a amplifier with 2*50w+100w and 3 drivers: one subwoofer 100w 8 ohm and two tweeters 5w 8 ohm. I don't know why but i think i'm about to blow up my tweeters. I can't find a solution to decrease the wattage of the 50w output. Can you...
I need to create a simulation of an ideal speaker output. My professor advised me to use Thiele-Small parameters to do it. However, I have only been able to simulate impedance simulation of the speaker. Do you know a way to simulate actual sound pressure output?
I have an LM386 and a 3w 4 Ohm speaker, and I've tried every possible schematic, and nothing seems to work. The sound quality is poor when I make the speaker audible, by turning the volume up. What should I do?
I need some advice on what is the quickest way to change the alert signal output through a amplifier to run a fixed tone transducer with on board tone driver ? Problem to start with is my customer has issues of the speaker alerting device on this agricultural implement monitor is too quiet . So...
Hey I'm wanting to try my hand at building a simple portable 1w practice amp and I'm still very much a beginner at reading schematics and even worse at working from them so can someone tell me if I'm going in the right direction please? Pm me if you want.
Schematics
**broken link removed**...
I have a 8ohm 30W speaker and lm386.
I don't know much about the internal structures of lm386. I want only bass sounds(frequencies) in that speaker. How can I do that?
And I also want to know how to smoothen the high frequency sounds?
I recently acquired a Logitech X230 speaker set, with subwoofer and stereo speakers from a friend, but was dismayed to learn that the left speaker is non-operational. The other one and the subwoofer work fine. Im a complete noob to sound/speakers, so I decided to open it up and look for broken...
I am using fairly robust D882 and B772 transistors in my design, so I am wondering if I still need 4 damper diodes to protect the transistors as shown below? (Leaving them out saves a little on space and cost.)
Hi electrotechs!
I am designing a audio amp/speaker combination. This is to be a 3-way system, bi-amplified. I am using an active crossover filter that will drive a mono subwoofer, band limited to 1 KHz and lower. Two more amplifiers will drive the rest of the audio in stereo. This stereo...
Hi all,
I'm working on an audio circuit that is really space limited. I purchased miniature 12MM 8 ohm speakers from "no name" brand from aliexpress, these speakers don't have a datasheet.
When I activated the circuit the sound is really low- even though the voltage on the speaker is 2V~3V.
I...
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