[sdiy] Tapped volume pot: extra tone control?

[Cornutt, David K]

> From: Roy J. Tellason [mailto:rtellason at verizon.net] 
> That provides what they called a "loudness contour",  
> basically giving you some treble cut (and therefore boosted 
> bass) at lower volume levels.  Same sort of thing as that 
> "loudness" button you'd see on some stereo gear.

That's what I thought; a crude attempt at loudness compensation.
Also, it would tend to reduce the power demand at high
volumes, which delays clipping a bit.