Hello Friends, In this post I make a 19W subwoofer amplifier using LA4440 IC, which can deliver up to 19W RMS output at 4Ω ±12V. For the low pass filter of this amplifier, I have used NE5532 IC. But in place of NE5532, you can also use 4558D/ TL072 IC. This is a subwoofer amplifier. So for that, you will connect the subwoofer only, and you can hear the low frequency. Overall the sound quality of this amplifier is very good. If you make this amplifier you will not be disappointed. For designing my PCB, I used EasyEda online software. Then I export the Gerber file (which you can download). And then I go to www.pcbway.com 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. www.pcbway.com 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 Black 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.
Gerber File:- https://bit.ly/3MQGwwz
PCB Layout & Schematic:- https://bit.ly/41VrcDb
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.
Power Supply:- Use 0-12V, 2A Power supply to power up this amplifier.
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