Adafruit Stereo 20W Class D Audio Amplifier - MAX9744

Key Features: Both analog and digital volume control capability Up to 29.5dB max gain Integrated Click-and-Pop Suppression Drive 2 channels of 4-8 ohm impedance speakers at 20W each Fully assembled and tested Pump up the volume with this 20W stereo amplifier! This slim little board has a class D amplifier onboard that can drive 2 channels of 4-8 ohm impedance speakers at 20W each. Power it with 5-12VDC using the onboard DC power jack and plug stereo line level into the 3.5mm stereo headphone jack and jam out with ease. Since it's class D, its completely cool-running, no heat sinks are required and it's extremely efficient - up to 93% efficiency makes it great for portable or battery powered rigs. We took this lovely chip and wrapped it up into a breakout for you, with polarity-protection, jacks and terminal blocks, i2c level shifting, and a spot to solder in a volume pot.We like the MAX9744 amplifier at the heart of this board because its very easy to use, but it also has both analog