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BD 7.997

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TDA2050 TDA2030 NE5532 2.1 3-Channel Hi-Fi 60W Subwoofer Amplifier Board 18W+18W+32W Compatible LM1875 AC 9-15V

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Product ID: 89354897

Brand:

knacro

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About the item

The bass is powerful and strong, and the treble is crisp and not harsh.The bass unit is a TDA2050 - the output peaks to 32W. The two-channel unit is 2 TDA2030 - the output peaks to 18W+18W. The TDA2030, TDA2050, and LM1875 can be completely interchanged. If all of them are replaced by TDA2050 or LM1875, replace the larger heat sink..
The rectifier filter adopts two large 3300UF/25V electrolytic capacitors, which can provide enough low-ripple DC power supply to the whole circuit, and the sound can still be released freely when the dynamic output is large..
The low-pass preamplifier circuit uses the NE5532 dual op amp, and the audio coupling capacitor uses the original Philips CBB capacitor. The bass is powerful and flexible. Rectifier circuit uses SEP large 6A rectifier bridge to ensure that there is enough current output, maximize the power amplifier chip efficiency..
Post-amp: The subwoofer use TDA2050A amplifier to achieve an output power of up to 32W. The playback DJ is very shocking; the left and right channels use two TDA2030A output amplifiers, and the output power is 18W + 18W. This kind of power is very reasonable. Can adjust the high school bass to the best, to meet the needs of different hearing..
This board is equipped with an MP3 decoder board audio input header (specification 3P-2.0mm) and a 12V regulated DC output header (2P-2.0mm) for powering the decoder board. The 12V power output from the board is used to power the decoder board. Do not connect the GND of the decoder board's audio input during wiring to reduce interference; if the decoder board alone supplies power, it must be connected to GND..

The TDA2030, TDA2050, and LM1875 can be completely interchanged. If all of them are replaced by TDA2050 or LM1875, need replace the larger heat sink. The rectifier filter adopts two large 3300UF/25V electrolytic capacitors, which can provide enough low-ripple DC power supply to the whole circuit, and the sound can still be released freely when the dynamic output is large. The low-pass preamplifier circuit uses the NE5532 dual op amp, and the audio coupling capacitor uses the original Philips CBB capacitor. The bass is powerful and flexible. Rectifier circuit uses SEP large 6A rectifier bridge to ensure that there is enough current output, maximize the power amplifier chip efficiency. Post-amp: The subwoofer use TDA2050A amplifier to achieve an output power of up to 32W. The playback DJ is very shocking; the left and right channels use two TDA2030A output amplifiers, and the output power is 18W + 18W. This kind of power is very reasonable. Can adjust the high school bass to the best, to meet the needs of different hearing. When wiring, refer to wiring diagram wiring. Do not short circuit or high voltage input. Otherwise it will damage the components. Parameters Left and right channels: TDA2030Ax2, Peak power: 18Wx2, 2.5-4 inches, 4-8 ohms, 10-30W full-range speakers are recommended. Bass output: TDA2050Ax1, Peak power: 32W, 5-8 inch, 4-8 ohm 30-50W woofers are recommended. Working power supply: Dual AC 9-15V transformers, it is recommended to use dual AC12V power transformers above 30W. Finished board three-dimensional size: 135x85x40mm LxWxH (without potentiometer handle) Radiator specifications: 100x33x37mm (LWH). Potentiometer shaft center distance: 25mm, shaft diameter: 6MM. PCB ing hole spacing: 128x38mmLxW (width). Weight: 230g. Package Included: 1pc TDA2050 TDA2030 NE5532 2.1 3-Channel Hi-Fi Subwoofer Amplifier Board 3pcs Potentiometer cap 1pc power cable 1pc Audio input line

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