Description
DC 9-18V Dual 39w Output Pre-amplification Adjustable Power Amplifier Board AD828 Preamplifier Module
Product Description
Adopt brand new original imported power amplifier chip, the pre-amplifier uses AD828 fever-grade op amp, the chip capacitors are all imported brand capacitors, the signal coupling capacitors are imported non-polar capacitors, the pre-amplification can be changed and used more flexibly.
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Maximum output power
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39W X 39W
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Working voltage
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DC 9-18V
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Board size
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length 69mm width 50mm
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Heat sink size
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69mm long, 40mm high, 19mm thick
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1, Two audio input sockets (3.5 headphone socket, 2.5 pin socket) are convenient for different occasions. Volume adjustment uses a 09-type fully sealed potentiometer.
2, R8 and R10 are the front and left channel amplification adjustment resistors (the resistance is 0603 by default, if there is no one, you can also remove the two patches on the board, use in-line, two ends of the patch position In-line pads are left) You can adjust from 5k-68k according to your needs. The larger the resistance value, the higher the magnification. The shipment default is about 2-3 times.
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