Power amplifier circuit diagram with PCB layout

Are you looking for a power amplifier circuit to be used in your project? There are a dozen of circuits in the amplifiers category on this site. Or, you could use the search box on the top or sidebar to search for one.

Power amplifier circuit diagram with PCB

It might take a while, but surely you have limited time. Don’t feel down just yet. I have compiled a list of power amplifier circuits with a PCB layout ready to be made. There are around a hundred different circuits grouped into various sub-types to be easy to find.

Note: Please consider it carefully, before you buy the parts to build the circuits. Because some circuit is not beginner-friendly.

My Experience with High Amplifiers

I was interested in electronics when I was about 9 years old. But my family had a difficult time at that time; my mother was in the early stages of cervical cancer, though she has now recovered through the use of herbs and vegetarian food.

At that time, I became very interested in amplifier circuits because almost everyone likes to listen to music. The first circuit I got was a car’s radio tape player. But I can’t turn on the music too loud because my mother doesn’t like it, and I want her to be comfortable, so I turned to testing the power supply circuit instead. It became my deep-seated dislike of large amplifier circuits.

However, I still like to collect audio amplifier circuits, although some may not work so well and I haven’t tried them yet, I cannot confirm that it will work.

But if you love to learn electronics. It will surely be a good experience.

Look at it below!

Small Power Amplifier circuit Under 20 watts

They are suitable for small applications. For example, to increase the output of melody sound, for experiment Electronics learning.

  • LM386 Audio Amplifier Circuit with PCB It was my first mini audio amplifier. Many people also use it. Because it’s easy to build and this IC always popular. And suitable for a 9V battery.
  • 2W+2W Stereo using 3 LM386 Here is an LM386 stereo audio amplifier circuit, 2 watts. Using 3 ICs in a bridge model. It is cheap and easy to build for a beginner.
  • 15W Multi-Purpose TDA2030  This IC is popular all the time. Because of small and cheap. This is a Mono Model. It’s enough for a normal room.
  • 1.2W, Super Small, TDA7052 Tiny stereo audio amplifier for mobile or Ipad. Even a 5v audio amplifier circuit diagram. It helps you to use a AA 1.5V battery x2 (3V) to run a power amplifier.
  • TDA2822 Stereo Amplifier This is a stereo power amplifier. People like TDA2822. Me too. Why? Find the answer yourself.
  • 20W Integrated Amplifier, TDA2005 with tone control. The easy circuit uses a 12V supply.
  • TDA820, Mini Stereo Amplifier, 2W+2W  It is an alternate tiny amplifier chip. Only a single IC gives a power of 2 watts max on 8 ohms. more than LM386. You will listen to music louder.
  • 4-transistor audio amplifier circuit This is a 4-transistor complementary push-pull amplifier, that shows the basics of audio amplifier design.
  • Simple power amplifier circuits There is a small power amplifier circuits using a few components and low volts power supply. It may good idea to learn your electronics.

Mini Amplifier 20W to 50W

Between 20W to 50W range—If you are young. You will like this list. Imagine when you listen to music in your room. It is so happy!

Best for Home 50W to 100W

50W main amplifier OCL

Imagine you are watching a movie with your family. Sound power is very realistic with these circuits.

100 watts Power Amplifier Circuits

When you have a mini party. You use this. Your friend will be amazing for your electronic skills. We love it.

High Audio Amplifier Circuits Diagram

More 101 watts up—They may be suitable for the beginner. They are the PA Audio system and expensive. And take long times for making.

  1. 150W Super Hybrid using STK-4048
  2. 120W Super Bridge using TDA2030 (at 2Ω speaker)
  3. 300W to 1200W MOSFET Amplifier for professionals only.
  4. 200W, Bass Guitar Super Bridge
  5. 200 watts MOSFET Amplifier Class G

12V CAR Audio Amplifier circuits

All used in a car or in a house with a 12V DC power supply. Some circuit requires high current. Most use an IC chip. So easy and small. 

  1. 50W BCL Car Audio using TDA1562
  2. 40W Mini Audio
  3. LM383 Power OTL 5.5W
  4. Small IC circuits for speaker

Note: All in all, you can use this small amplifier, too.

PreAmplifiers & MIC Non Tone Controls

  1. 4 Preamplifier Using Transistors
  2. 3 Universal Preamplifiers Using IC
  3. Transistor Stereo Bass Booster
  4. Microphone Preamplifier 2 CH
  5. Low Noise Microphone preamplifier
  6. Dynamic Microphone Preamplifier using Transistors
  7. Stereo Noise Filter

Tone controls & Graphic equalizers

  1. 7 Classic low noise tone control circuits using transistors
  2. Hi-Fi preamplifier with tone control**new** Low distortion. Use low noise transistors Frequency response 20Hz-20KHz
  3. Bass Treble Active tone control
  4. Passive Tone Control, Non-IC & transistors
  5. Top 5 circuits of NE5532 Preamplifier tone control If you want to avoid noise in the audio system you should try this. It uses NE55532, LF353, and more.
  6. Top 3 Graphic EqualizersLow noise, Cheap, and easy
  7. TDA1524 stereo tone control
  8. Super Bass Booster It is a small circuit diagram with PCB. Using popular op-amps, 741, LF351, or more. And use a single power supply.
  9. Audio Loudness control

Audio Mixers, Filters, and Converters

  1. Micro Mixer
  2. Linear opto isolator
  3. Add Dimensional sound from 2CH to 4CH
  4. The cheap & small hearing aids project

Audio Controllers & Protection Circuits

  1. Simple delay speakers
  2. Speaker protection
  3. Tweeter speaker protection


I always try to make Electronics Learning Easy.

Get Ebook: Simple Electronics Vol.4

20 thoughts on “Power amplifier circuit diagram with PCB layout”

  1. Can you design a small active board maybe 25cm x 25cm or multiple board to plug into each other with 3 output chanel around 600watts each chanel at 8ohms and maybe around 1000watts or more at 4ohms with Bluetooth???

    Thank you.

  2. Adear Sir I would like a catalog of your audio amps 20 to 50 watts, kits, as I like to build them
    And they make great gifts for my neighbors at Christmas. Thanks. May God bless you,
    Yours truly, Bruce Corson Jr

  3. I need a schematic for amp circuit board in a Europort MPA40BT-Pro portable PA amplifier. Any clues as to where I can obtain one would be greatly appreciated. Thanks!


Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.