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3W Audio Amplifier

  • Model: 3W Audio Amp
  • Units in Stock: 40
  • Manufactured by: Graylogix

Rs150  Rs75
Save: 50% off


Can use the computer USB port 5V power supply
or using a mobile phone charger USB port 5V power supply
battery power can also be used
high efficiency:90%
can provide 3W (left channel) +3 W (right channel) output power in the 4? load and 5V power supply conditions
A class, B class amplifier such efficiency is only about 30%
D class amplifier is highly respected today
D class amplifier efficiency is extremely high, not because of temperature affect the sound quality
but do not add heat sink and take less space
noise canceling circuit was built in the amplifier board
power on / off without pop noise
module has a short-circuit current protection and over-temperature protection

LCD TVs, monitors,
Portable Speakers
Portable DVD players, game consoles
Phone / speakerphone

Operating voltage: 2.5V-5.5V
Speaker With:4-8ohms recommended:4 ohms
Speaker Power :2-8W
Size:21 x 18 x 3.4mm(L x W x H)
Color:As the pics show
Net weight:1g

Package Contents:
1 x Amplifier Board

Left and right channel output of the "negative" can not be together, otherwise it will burn IC, and speaker(load) should be connected before power on.

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This product was added to our catalog on Tuesday 04 October, 2016.