Mute works fine and the sound goes off if you turn the volume down to 0. As soon as you turn the volume up to 1 it is very loud, as loud as it should be on the highest setting. All other volume settings, from 1 to 64 sound the exact same. This is for every channel.
Volume/Mute Indicator: This
indicator will glow green when the
HK3270 is turned on. Its position
will enable you to judge the relative
volume of the unit even when the
speakers are muted or turned off.
When the indicator is pointing
towards the left, at an "8 o'clock"
position, the volume is low; when
it is pointing to the right, as in a
"3 o'clock" position, the volume is
loud. When the unit has been muted,
pressing the Mute button ïâthe
indicator will flash
Usually answered in minutes!