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What would be a suitable replacement for a LM380 power amp chip to drive a speaker in a basic intercom circuit?

What would be a suitable replacement for a LM380 power amp chip to drive a speaker in a basic intercom circuit? i believe the power output is about 2W max

2.5W. The LM380 is still available. Check the attached web site. Enter LM380 in the "Pricing and Availability" box and click "Find".

Why do you want a substitute?

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AMP Research Power Step Installation