Close
0%
0%

50W Audio power amplifier

Class AB discrete audio amplifier

miroslav-hancarMiroslav Hancar
Following
Liked Like project

Just one more thing

To make the experience fit your profile, pick a username and tell us what interests you.

Pick an awesome username
hackaday.io/
Your profile's URL: hackaday.io/username. Max 25 alphanumeric characters.
Pick a few interests
Projects that share your interests
People that share your interests

We found and based on your interests.

Choose more interests.

OK, I'm done! Skip
Similar projects worth following
834 views
0 comments
690 followers
View Gallery
I built an amplifier for my new speakers, designed as a dual-mono system with two completely independent amplifiers. Each amplifier has its own power supply and DC speaker protection on a 4-layer PCB. The output power is 50W at 8 ohms, with a balanced supply voltage of +/- 35V, and each amplifier has a dedicated winding on the power transformer. I also built a simple stereo loudness control on a separate PCB.

You can find original schematics here and here (only in Slovak and Czech language). I'm not the author of these circuit, i just made some modifications.

loudness.sch

sch - 267.07 kB - 03/26/2021 at 22:16

Download

loudness.brd

brd - 38.74 kB - 03/26/2021 at 22:16

Download

fyziologia_gerbers.zip

x-zip-compressed - 38.19 kB - 03/26/2021 at 22:16

Download

amp.sch

sch - 1.67 MB - 03/26/2021 at 22:10

Download

amp.brd

brd - 189.87 kB - 03/26/2021 at 22:10

Download

View all 6 files

  • 3D printed chassis

    Miroslav Hancar • 04/19/2021 at 19:08 • 0 comments

    I 3D printed a simple front and rear panel, top cover and potentiometer knob. Unfortunately, panels are a bit warped but it doesn't look so bad. Heatsinks are mounted on wood board.

View project log

Enjoy this project?

Share

Discussions

Similar Projects

This time I am here with 2.1 channel, not only bass but also the amazing sound speakers of 25w per channel.
Project Owner Contributor

HI-FI 200Watt 2.1 channel Audio Amplifier for Home

electroboyElectroBoy

This is an audio Class-D power amplifier prototype. It is build in bridge mode and can give arround 500W.
Project Owner Contributor

Class-D Power Amplifier -prototype-

jairoJairo

I had seen recent efforts to use 2N3904 and 2N3906 transistors to make an audio power amplifier. This is my take on this exercise.
Project Owner Contributor

LIL' BUDDY AUDIO POWER AMPLIFIER

john-guyJohn Guy

A bench power supply that had been dead for twenty odd years finally gets fixed.
Project Owner Contributor

Fixing a Philips PE1509 bench power supply

jaded-hoboJaded Hobo

Does this project spark your interest?

Become a member to follow this project and never miss any updates

By using our website and services, you expressly agree to the placement of our performance, functionality, and advertising cookies. Learn More

Yes, delete it Cancel

Report project as inappropriate

You are about to report the project "50W Audio power amplifier", please tell us the reason.

Send message

Your application has been submitted.

Remove Member

Are you sure you want to remove yourself as a member for this project?

Project owner will be notified upon removal.