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  • Writer's pictureRob Rapheal

Realistic MPA-100

Updated: Jul 12, 2019

I found this Realistic MPA-100 at an auction for 9$.

1978 Radio shack catalog

I recently bought this PA amplifier at an auction. Here's an ad from the Radio Shack catalog. I'll take a look at why it was sold as-is and try to characterize its response. My scope has an FFT function but it is not great for measuring response. I think I am going to try trueRTA to check the response curve and see what makes it a PA instead of a music amp..

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