Subwoofer Low Pass Filter Sallen Key with Variable Frequency and Gain घर हिलाने वाला बेस सर्किट

Subwoofer Low Pass Filter Sallen Key with Variable Frequency and Gain घर हिलाने वाला बेस का सर्किट
In this video I have described the working and manufacture of Low Pass Filter Circuit for Sub woofer amplifier. This circuit is based on Sallen Key or double pole topology. Sallen key is very effective filter topology for high performance filters. This circuit is equipped with adjustable frequency and gain control and can be used with any type of subwoofer. I have given PDF files of PCB and Component Layout in the google drive.
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Download Part list and PDF file of the project from here:
https://drive.google.com/file/d/1mbJR...
Part List ( See PCB board for details)
1. Resistance
33K, 4.7 K and 220 Ohm
2. Capacitor
39pf, 0.1uf, .47uf, .22uf and 220uf
3. Potentiometer
100 K and 47K Dual
4. IC : 4558 or NE5532 or TLO72