quick question re ARC LS26

Hi,
just acquired a ARC LS26... beautiful premap!

can owners out there pls tell me whether this happens to your one...

when Vol is dialed down, there is a faint click audible in the LEFT speaker.

also, that click is more obvious when Vol turned down from 1 to 0.

i know that click is supposed to be heard from the MACHINE when Vol goes fero 1 to 0.

but from the LHS channel as well???