simply powerful "car" amp (TDA7560?)

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here is an update:
ESP - Simple High Quality Hi-Fi Preamp

cheers!

Indeed.

Look at figure 3. Notice that the volume control is linear. The 15K resistor changes the taper. This actually works better than a cheap "audio taper" volume control. I used it in a cheap preamp circuit with cheap parts and it sure worked a whole lot better than one of those $2 volume controls.
 
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