This TDA7297 Audio Amplifier module is just right one for you. This audio amplifier board has no current impact sound when booting, low static noise, and a high quality sound: treble delicate, soft, transparent, no harsh; bass strong, full, strong, and acting freely. The amplifier has been equipped with a heat sink to solve the heat problem, and there is also potentiometer to adjust the loudness, bind to wire the speakers. This module has a max output power up to 15W+15W.
$15.50 |
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Add an ear to your project with this well-designed electret microphone amplifier with AGC. This fully assembled and tested board comes with a 20-20KHz electret microphone soldered on. For the amplification, we use the Maxim MAX9814, a specialty chip that is designed for amplifying electret microphones in situations where the loudness of the audio isn’t predictable.
This incredibly small stereo amplifier is surprisingly powerful – able to deliver 2 x 3.7W channels into 3 ohm impedance speakers. Inside the miniature chip is a class D controller, able to run from 2.7V-5.5VDC. Since the amp is a class D, its incredibly efficient (over 90% efficient when driving an 8ohm speaker at over a Watt) – making it perfect for portable and battery-powered projects. It has built in thermal and over-current protection but we could barely tell it got hot. This board is a welcome upgrade to basic “LM386” amps!
