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S$7.61
S$10.43-27%
SOTAMIA Subwoofer Speaker Preamplifier Audio Board Low-pass Filter Dual NE5532 Preamp DIY Home Theater Sound System Socket Stereo
Sold by Somia Classical Store
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From S$1.49
Est. delivery by Apr 23 - Apr 26
Somia Classical Store
448 items
Product description
The subwoofer board is powered by a single power supply and has a built-in dual power conversion chip. Use two NE5532 op-amp chips and two round-hole gold-plated op-amp sockets. If you think the op-amp is not good enough, you can easily replace a better op-amp chip yourself to get better results.
The board is designed with frequency adjustment and volume adjustment Two input 2.54mm sockets use: two sockets are connected in parallel, the stereo audio source is input to one socket, and the other socket can be used as output (connected to 2.0 power amplifier or 2.0 tone), which is convenient to form 2.1 channel wiring .
parameter:
Working voltage: DC 7-15v (DC input does not need to be divided into positive and negative poles, because the power input has a rectifier circuit), AC 5-12v
Frequency adjustment range: about 22HZ-280HZ (note that the human voice cannot be heard at this frequency)
Board size: 50mm*50mm
Spacing between two potentiometers: 30mm
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