I have a question about an amp I made from a Califone cassette recorder.
When I turn up the volume full (8-10) and play, the sound stops, like it's cutting out. I also get a repeating throbbing kind of "wump" sound. No overdrive distortion. If I turn it down to about 7, it's fine and clear sounding. Is this an issue with the size of the speaker? The speaker is 3 to 4 inches in diameter.
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