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Description
dual power supply LM1875 bass 2.1 power amplifier board 3 channel speaker subwoofer audio amplifier board
Feature
Recommended power exchange dual 9V-18V,
Many active speakers use double 10.5v double 13.5v can all be used 2 satellite speakers around the channel about 25W +25 W 3-6.5 inch 4-8 ohm 5-15W full range or high tass speaker Heavy bass 30W recommended 4-8 inch 4-8 ohm 20-60W subwoofer
Special Note: Please use compliant transformer, single-supply voltage or too low or too high will not work, LM1875 colling and the negative electrode is linked, when using dual power supply, Heat sink don't with ground wires or enclosure short-circuit, otherwise immediately burned
Specification
Two satellite speakers
Left and right channel speaker 25W + 25W rated Recommended
4-8Ohm 3-6.5 inch 15-50W full-range or high bass speakers
Subwoofer Use:
30W is recommended to use 4-8ohm 4-8 inch 20-60W subwoofer Speaker
Identification method is to surround larger stout magnet
