DIY 2.1 Preamplifier Board | Stereo + Subwoofer Filter
Автор: Spinoza crafts
Загружено: 2025-07-14
Просмотров: 1956
Описание:
#SpinozaCrafts #2_1Amplifier #SubwooferAmp #Audioprojects
🔧 In this video, I built a 2.1 preamplifier board (stereo + subwoofer).
What does this circuit do exactly?
It filters out low frequencies before they reach the amplifier for the midrange and tweeter, and removes high and mid frequencies before they go to the subwoofer amp.
You can connect this preamp to any amplifier and speaker setup.
In the video, I transferred the PCB layout using a PCB printing solution, but you can also use the iron transfer method.
📎 The PCB file is available at the link below.
https://drive.google.com/file/d/1aSUu...
📎 Stereo tone control PCB is also available below.
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Hope you find this project useful!
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00:00 Introduction
00:10 Transferring the PCB Layout
01:51 Drilling the Holes
03:29 Edge Trimming & Sanding
04:30 Soldering the Components
07:49 Final Testing
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