[Arny Krueger]

"anahata" wrote in message
o.uk

On Thu, 08 Oct 2009 08:43:18 -0400, Arny Krueger wrote:

Here's a question - how will you implement tone and
volume controls?

That's easy - just change the supply voltage to the power
output stage. (how to do that efficiently is left as an
exercise for the reader....)

Even for just volume controls, that methodology gets dicy for high levels of
attenuation.