"Wally" wrote:

: There's a relay attentuator version in the works as
: well, I believe.
:
: Do you mean a mute funtion?

No, a way of switching between resistors in an input attenuator in
combinations so that only two resistors are in circuit at any time, with only
a few relays ... have a look here for some discussion (and links) on it.
http://tinyurl.com/2zuxy