2x25W at 4 Ohm TDA7492 Class-D Audio Amplifier Board Only Reviewhttp://tinyurl.com/km4ryvt 2x25W at 4 Ohm TDA7492 Class-D Audio Amplifier Board Only Pre-assembled, pre-testedSuperb sound qualityPerfect Class D architectureTwo channels-each up to 25WUp to 90% efficiency
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