Stereo 20W Class D Audio Amplifier - MAX9744 (ADA1752)

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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 … read more

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Hi, I’m wondering what kind of power input is required for this. Is it just the one 4.5-14V DC power jack? Will I need that specific size jack to drive this? What size would that be?

Would this drive any reasonable amount of sound out of a pair of 6 Ohm 15-150W speakers?

How would you recommend getting a 14V or 15V supply for this audio amplifier?

Hi Andrew,

This would take a 2.1mm plug for the power input, and any source from 4.5-15V will work fine. I would use a 12V supply since they are widely available:

This should work nicely:

The full instructions for setup and assembly of this part can be found here: