Description
Three channel Power Amplifier 60W Bass Speaker NE5532 2.1 HIFI Subwoofer Amplifier Board
Product Description
The latest version of TDA2050A + TDA2030A + NE5532 three-channel (2.1) subwoofer power amplifier board finished board, output power: left and right channels 18W+18W, subwoofer 32W, fully compatible with LM1875. Equipped with a power output terminal for supplying power to the 12V decoder board and an audio input terminal on the decoder board (the ground GND of the decoder board audio input should not be connected to reduce interference during actual wiring).
Overview
The bass is strong and powerful, and the treble is clear and not harsh. The chip used is brand new and original: the default woofer is 1 TDA2050-the peak output is 32W, and the dual channel unit is 2 TDA2030-the output peak is 18W+18W. TDA2030, TDA2050, and LM1875 are completely interchangeable. If they are all replaced with TDA2050 or LM1875, please change to a larger radiator. The power amplifier chip has five pins: positive power supply, negative power supply, positive input, reverse input and output. The heat sink on the chip is connected to the negative pole. When the power is on, the heat sink of the chip must not be short-circuited with the ground wire, otherwise it will burn out immediately. The above figure is a schematic diagram of the wiring of this board, please carefully
Specification
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item
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value
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Left and right channels
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TDA2030Ax2, peak power: 18Wx2, it is recommended to use 2.5-4 inch, 4-8 ohm 10-30W full-range speakers.
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Bass output
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TDA2050Ax1, peak power: 32W, it is recommended to use a 5-8 inch, 4-8 ohm 30-50W woofer.
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Working power supply
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AC dual AC9-15V transformers, it is recommended to use dual AC12V transformers with power above 30W.
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Output power
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DC12V1.5A, power supply for 12V decoder board.
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PCB material
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FR-4 glass fiber board, thickness: 1.6mm.
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PCB size
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135x60mm
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Radiator specifications
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100x33x37mm (length x width x height). Center distance between potentiometer shafts: 25mm, shaft diameter: 6MM.
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PCB mounting hole spacing
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25*37mm
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Supply voltage
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128mm (length) x38mm (width)
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Net weight
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230g
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Details Images