DIY - USB Mini Speaker System - PAM8403
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- เผยแพร่เมื่อ 29 มิ.ย. 2024
- The main component is the PAM8403 digital amplifier. It’s very small and can be powered with an USB cable. It can deliver three watts per channel and it has a very low price, especially if you buy more pieces at once. It works with 4ohms and 8ohms speaker drivers.
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PAM8403 Amplifier Board: s.click.aliexpress.com/e/_De4...
Speakers 2" 3W: s.click.aliexpress.com/e/_Deg...
50K dual potentiometer: s.click.aliexpress.com/e/_Dnk...
Potentiometer knobs silver/black: s.click.aliexpress.com/e/_Dn3...
Small switch 10x15mm: s.click.aliexpress.com/e/_DnN...
volume potentiometer schematic: i.imgur.com/Yj3sOqr.jpg
PAM8403 speaker schematic: i.imgur.com/LhEsWEq.jpg
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Excellent build,, I bet they do sound much better in person. I love these little PAM8403s.
Very nice video. I like the way how you explained each and everything like putting a capacitor and reason for it, putting a resistance. I like your tools and the finished product. and in the end I came to know why my small speakers are always having little humming noise when attached to computer via USB port. Thank you very much Sorin for all your efforts.
I did something similar after watching your video! I took and old pair of PC speakers and mounted them in a wooden box I made. I found an amp on Amazon with bluetooth, added a battery pack and now have a nice little portable bluetooth speaker system. Thanks for the inspiration!
Great description of whole project also neat n clear with comparison.
Really a superb book shelf speakers you have made.
Very neat work, well explained and audible illustration.Thumbs up
Bravo Sorin. A ieşit fain treaba :-)
absolutely amazing video. Keep it up dude!
Great video and nice humor thrown in the build.
Just found your channel and I really like your style! Subbed!
Great work man. Thumbs up
Your projects are interesting Sorin.
Subscribed.
you're instructions, you're work, are really excellent sir, i really like it, thanks for sharing you're knowledge in some electronics stuff.. :)
I like your finishings and designs
My congratulations, an EXCELLENT VIDEO-CLASS. You have earned a BRAZILIAN REGISTRY. A small request, would it be possible to provide us with a Link with the Exact Material List used and the Welding Schemes of each Speaker individually? For someone like me who is starting in this World of Electrotechnology, this would be of enormous importance! Thank you, always continue like this !!!
Great idea to use laminate floorboard for this. I have them laying around as well.
Love this. Great Video!
I got mine today and its really powerful and i love it
Marvellous video, great channel! Power to you, Sorin - liked and subscribed.
Nice work!
So beautifully you work bro. Keep it up 😘😘
i built this today and i must say i am very pleased with its perfomance ,
i used 4 ohm 3 watt speakers and where he connected the capacitor i put a 16 v 220 uf , it does not even switch off even when the volume is high , it sounds loud when the volume is low
last year i bought the version with bluetooth on it , it sucks soooo bad , every time the 808 kicks in , it would swith off,
guys if you are looking for a quick and easy way to build speakers ,I RECOMMEND GETTING THIS AMPLIFIER
wow, this is a real MASTERPIECE...
Hi Sorin that's a nice project that i will certainly do ! a small tip : we can use a dc isolator to prevent those ground loops wich make this annoying buzzing sound, like that you can use the Same power supply for everything ! 😉
hi, thanks for the tip. I know about the DC isolator converter and I will definitely use one in a future video. but I wanted this to be a budget diy mini speaker system. I'm also planning to make other more complex audio systems in the future.
Sorin - DIY Electrical Nerd Nice ! i'm waiting for it !!
I'm quite sure the sponge makes a difference- it helps smooth out the hollow sound and it lowers the tuning frequency.
Sos un genio, uso tus videos para practicar inglés y aprender sobre ciertos amplificadores... saludos desde argentina!
Very simple and clear. Thanks.
finally,a smart someone isn't using inches to measure.
thanks for your info, you video is amazing
your speaker can be sold in market they look so good according to me and they also sound very good I also used p a m 8403 amplifier circuit with 4 ohm 3 watt speakers at each channel means at right channel the impedance of speakers is 4 ohm and 3 Watts and at the left channel also the impedance of speaker is 4 ohm and 3 watt but the circuit is getting too hot and it stop working when it is heated too much at full volume or little bit lesser than full volume but its sound quality is awesome.
your project are awesome.
That was nice Sir.
nice build
You are m'y source of inspiration
Nice video bro
Nice project
Great job
wow cool comparaison :)
very inspiring. thanks!
You are great bro. you solved my question. love from india. Now I am going to make this. Again Thanks to you.
Very good speakers
Hi Sorin, thanks for sharing, this video will help, I'm going to make a bluetooth speaker
este suficient sunetul pentru o camera :D foarte buna lucrarea...am si eu doua difuzoare ca ale tale...o sa fac si eu ceva de genul.
NICE JOB
Great job dude. :-)
Nice.. keep it up bro.
muy bueno el canal, gracias por compartir estas genialidades, saludos desde Argentina.
Bravo mah ! 👍😉😁
Really I like it😍
This project i want to do. Thx dude...
Great Brother.
regarding the ground loop effect, you can use 2 1 to 1 audio Transformers to isolate the channel grounds
Very nice
Îmi place foarte mult :D
nice video, good
Lot of work...so im not doing, u do work thumbs up 👍👍
esti rooooomannn de al nostru :)
You should have like 300,000 subscribers
Sir it's a nice Project. If u make some 2.1 sounds system in future then we will be very thankful 😊💕
I found your Channel and feeling like found new earth 😘😘
Good idea, I built a 10w speaker like this
very nice
very good
I used this little amp (the version with the volume pot onboard) with a pair of cambridge soundworks 1.25" speakers out of a creative travelmate, i built a box out of modellers plastic (styrene) that can be glued with polystyrene cement, fitted a pair of mini bass tubes out of styrene tubing porting out of the back (20mm wide tube), it's in the front of my antec P100 PC case on a socket 754 PC with an athlon64 3700+ CPU and Radeon9800 Pro graphics card (Motherboard is an ASUS K8V SE Deluxe)
Its routed internally to my Soundblaster live 5.1 card running windows98SE, i also fitted a separate '3rd' speaker going directly to the soundblasters 'PC Speaker' output with a 100Ohm potentiometer this is for DOS sound (to control the bios beep volume level and DOS gaming/music sounds), i tell you what the sound quality from this little thing in my front drive bay is just incredible, it's real crisp and has a surprising amount of bass for a drive bay speaker, i cant recommend these things highly enough, they are incredible!
Really enjoyed the project. What's next? Maybe bluetooth sound bar...
thanks. I have many ideas, but it takes a lot of time to make every video... the sound bar is on my "to do list", but probably in a few months.
Excellent video!!! Clear, short yet accurate and right to the point explanation !!! With one video I have learned everything I needed to know about speakers. I have a question though, with the same power (in this case 3W+3W), can you make them somehow even a little louder by using different pot or different amplifier for instance, without compromising quality of the sound ??? I'm asking 'cos I am currently working on a similar project, but speakers will be located further from the source? Great respect dude!
hi. thanks for watching, the amplifier cannot be modified, to be more powerful. but in the pam8403 datasheet is mentioned that it can be powered with max 5.5V. this way it can deliver 3.2W per channel with 4ohms speakers. so you can try to increase the voltage to 5.5V. the only alternative is to use a more powerful amplifier.
Ok. Thanks for that. But are there any more powerful amplifiers? Could you recommend something? It will go to a laptop.
it depends on what power supply you want to give it. the laptop USB port can deliver 5V at 0.5A. if you want to use the USB as the power supply for the audio amplifier, the pam8403 is the best choice. if you want to use a separate power supply for your amp, you can use any amp you want.
Thanks a million, mate!
Great work love from Pakistan
Not getting low frequency sound with 3.7v lithium battery when i was using with powerbank it working absolute fine
this amplifier needs to be powered with 5V. a single lithium cell has a lower voltage. if you want to use a cell, you need to add a step up converter to increase the voltage to 5V.
@@Sorin_DIY i have use mobile charger to supply power 5v 1A then that chip is getting heatup and Auto shut down
Bravo, imi place :)
DIY IS BEST
All the work was done in perfect squatting position.
Nice !!!
nice !
Hi, Sorin. I've been watching your videos and they are really helpful.
Just a question about ground loop, from forums and other videos I saw them use the capacitor like what you installed to fix it. But I also saw some short the ground from audio input with the Vin (-). Is the latter safe and does it cause any damage in long term use?
Thank you for all your efforts in sharing your electronics knowledge
Hi. That's not enough. to eliminate the ground loop noise you need a ground loop isolator, or you can power the audio amplifier and audio source with separate isolated power sources, for example separate transformer outputs.
Thanks congratulations
awesome
3w of power is based on combined channels. So the actual wattage is 1.5w per channel.
Thanks.
Mergea sa le faci si bluetooth, dar arata si asa super tare :)
Ps: ar trebui calculate dimensiunile boxelor totusi
salut. voi face si boxe bluetooth in viitor. am vrut ca acesta sa fie un sistem audio mic pentru PC/laptop/telefon dar mai ieftin si mai bun decat cele care se gasesc pe piata. este foarte greu insa de calculat o incinta exacta, mai ales pentru 4 fifuzoare mici pentru care nu am toate datele tehnice.
nice jobe
Bravo
Bravo👍
You could use isolated 5V power converter to eliminate that boozing sounds.
yes. but I wanted these speakers to be cheaper and more powerful than new ones. I will use a dc-dc isolated converter in another speaker build.
Nice
great vid and well made, will it work just mono speaker?thanks
yes
Sorin, please add purchasing links for those killer vintage pliers
Nice video.... I also want to build project with pam 8403.
Hi Sorin, another great video. Looks like I will be customising my parcel shelf in my car. As the power consumption is relatively low do you think you could make a base box using a slightly bigger speaker from your speaker stash?
So what is next of the agenda?
•powering them by 18650 lithium batteries.
•adding a Bluetooth chip for portability.
:)) You got me! I really like this PAM8403 amplifier and I will use it in other future videos. I will also make a portable bluetooth speaker. I have some original ideas, but I also want to make my version of these common "diy speaker/charger/PSU" videos, that you can find on youtube, to see if I can make them better :) Thanks for your support!
Awesome I can't wait. 👍
Nice video. Very helpful information. I wished you had tested the amps drawn with the volume pot on maximum, while reducing the volume on the mobile. Cause it would be helpful to know how much current is drawn, in case we don't add the volume pot, with the mobile volume high vs low. I suppose the current (amps) drawn would be more when the mobile volume is high and much less when it is low. Right???
the current consumption of the amplifier is higher when the audio input is louder. it doesn't matter if the input level is set by the phone or by the potentiometer.
Thks a lot bro. Very helpful.
Your very intelligent 👌👌
I made this simmilar project but used with a tpa3110 nice tho 👍
Nice :D
Very good Sorin! Do You find a simple solution to prevent the ground loop? Thank you for sharing this video!
hi. you can use them with a different charger or a powerbank. or you can add a ground loop isolator.
idol.. noobie here from Philippines new subscriber
Nice vedio
Super👍
Nice video man! But to eliminate that irritating noise at a groundloop you can use a "dc to dc isolator" for 1 bug. Just search for it on ebay. I use the B0505S-1W in my projects.
hi, thanks for the tip. I know about the DC isolator converter and I will definitely use one in a future video. but I wanted this to be a budget diy mini speaker system. I'm also planning to make other more complex audio systems in the future.
Isolator outputs only 1 Watt, the current setup is at 0.2 Amps, theoretically it could work but in practice it will under power the amp.
Thank you, my friend! It is as useful as i couldn't even imagine. All i needed to know. But i have a question: would my PAM8403 sound worst with 4Ohm 25W speakers than with 4Ohm 5W speakers?
hi. it depends on the speaker drivers build quality. theoretically the 25W speaker should be better, but if it's cheaply made, it will sound worst than the 5W speaker. I can't give you a direct answer, because I can't see the speaker drivers. my suggestion is to use the ones that have the better build quality.
Power ratings don't really matter much with this amp. The rated output is 3W per channel, so choose the better sounding one.
nice
I also bought 4 of those pam8403 amplifier
With potentiometer...
It surely is powerful😉...
You're awesome
By the way
I planning to buy a pam8403 5w bluetooth amplifier
And I only have 2× 4w speaker ...what should I put something to avoid blowing my speaker...🤗🤗🤗...I'll be happy If you'll reply.....please....😊😊😊
hi. you can decrease the input audio signal with some resistors. or you can add a resistor in series with the speaker drivers 4.7ohm 5W will probably work.
Thank you very much...
I'll try it😊
I liked this video..
I have a request can you make content for Arduino (Leonardo that is what I have) again. So the plan looks like a USB portable speaker.
Because I want to learn and apply to my DIY controller with Speaker function via Arduino