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High-performance compact 200W Amp.

Hello Friends, In this post I make a 200W mono amplifier using 2 pairs of 2SC5200 and 2SA1943 Transistors, which can deliver up to 170W RMS output at 4Ω ±45V. The low-mid frequencies of this amplifier are very good. And other frequencies are decent. You can use this amplifier also for subwoofer using a low pass filter. Overall the sound quality of this amplifier is decent. For designing my PCB, I used EasyEda online software. Then I export the Gerber file (which you can download). And then I go to for manufacturing my PCB. PCBWay are the largest PCB manufacturer in China. They offer Standard PCB, Advanced PCB, Rigid-Flex PCB, SMD-Stencil and PCB Assembly Service. Here you get, 100x100mm 2 Layer PCB only at $5, And processing time within 24 hours. And they distribute, worldwide. The more you order, the less price you have to pay.

You just need to upload the Gerber File, and select the quantity, color, silkscreen, thickness etc. Then select your country, and shipping method and then Pay. will deliver your PCB within 7-10 days.

After one week I received my PCB. You can see the PCB quality, it's awesome. I have ordered Red PCB. But you can choose your PCB color. PCBWay provides a total of 9 color solder mask - Green, Blue, Red, Purple, Black, White, Yellow, Matte Black, and Matte Green. On PCBWay you can get 100x100mm 2 Layer PCB only at $5. Maximum size PCB you can get 500x1100mm. And maximum Layer is up to 14 Layers. And If you order PCB the first time at PCBWay, then you get a $5 discount coupon. So upload your Gerber today and get the best quality PCB.

PCB Layout & Schematic:-

License:- ©Technical Mriganka. You can't use this PCB Layout and Gerber File for commercial purpose. You can use this PCB layout and Gerber file only for Educational and DIY projects.

Testing Method After Complete This Amplifier

Series light test:- After complete this board don't forget to series light test. When you will on this amplifier via series light, it glow for some time (1 - 2 sec). Then series light will turned off fully. If the series light will fully turned off, then check the voltages.

Check Voltages:- Check Speaker Output and Audio Input voltage. Here you get no voltages 0.00V. If you get same voltages, then connect preamplifier to input and connect speaker to output.

Power Supply:- Recommended transformer 30-0-30V 5-6A.

Post a Comment


  1. Hi, Thanks for your Kind knowledge sharing. i have assembled some of you amplifier circuits... all are working so great. especially this compact 200w amplifier simply superb. everyone asked me how you did so. thanks for your sharing. a small issue. dur to over heating of bD139 and 140 there is a white noise and Crackling Pop sounds coming. so please resolve this issue in a better way and release this PCB design as Version 2.0 and include power LED on that board too. thanks again.

  2. if you wish please share your contact number to my mail id

  3. Hi, Thanks for your sharing.
    When i open PCB Layout & Schematic:-,No Schematic included.
    Can I directly use the gerber files to build Amp for DIY?
    Thank you