Higher power alternative to MAX98357

[zachtheterrible]

Hi guys,

I'm using the MAX98357 to drive a speaker for my raspberry pi, but I need more power. Ideally something around 10W.
I'm using the Adafruit breakout.

Wondering if anyone can make suggestions for a similar breakout board but higher power? I need it to have:
- I2S support
- Relatively small, this one is about 1" x 1" but if it were 2" x 2" that wouldn't be a problem

Doesn't have to be class D, any amplifier type would work. Any suggestions?

Another path would be to amplify the output of my MAX98357, but it's seeming that's not exactly straightforward for a class D amplifier. Maybe someone could shed some light here..

Thank you

 

[rjenkinsgb]

30+30W claimed, with I2S:

29.26US $ 31% OFF|Lusya 2 X 30w 4ω Digital Input Class D Audio Amplifier Board Stereo Amp Module& Dac- Tas5754 For Home Speaker Diy - Home Theater Amplifiers - AliExpress

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[audioguru]

10W instead of 3.2W is not much louder since 10 times the power sounds twice as loud.

 

[tepalia02]

I found this one: https://www.adafruit.com/product/1752

 

[Nigel Goodwin]

I found this one: https://www.adafruit.com/product/1752

OK if you have a 12V supply to power it, and would give about 16W per channel to 4 ohm speakers - with a 5V supply, only about 2.5W.

Basically the output power of any amplifier is mostly dependent on the supply voltage, the current the supply can provide, and speaker impedance.

 

[audioguru]

Class-D amplifier ICs are fairly new and the newest ones have improvements.
Maxim company does not exist anymore since acquired by Analog Devices so their old amplifier ICs that produce distortion or need digital inputs might not be made soon.

I suggest using amplifiers made with a Texas Instruments TPA3116 class-D amplifier IC.