Audio Amplifier

I am searching for a good Audio Amplifier for my 2x 8 Ohm Speakers and i put the SSM2315 and SSM2375 Eval boards to be tested.

Both of them werent loud enought for my application. The SSM2315 has a 6dB fixed Gain Output and the SSM2375 can be set from 0dB to 12dB.

Does anybody knows a louder Audio Amplifier with a SNR>100dB and at least 1,4 Watt for my 8 Ohm Speakers?

(Power Supply can be 5, 8 or 12V)