I did some testing, using my grandkids ears as the test subject.
Ones 9, can hear a mouse lunching on a cricket, the other 15 who only hears what she wants to.
With phones plugged into 976, mini unplug unplugged from cans, neither grandkid hears anything, not even with ears pressed up against speakers. Volume on 976 up to -16...
My 990 is in basement, we go down and do same test, NADA.
Works as expected.
Use my Vintage 1982 Pioneer SX 950, On it you have to press Speaker A or B or both to disable even with headphone being used. But once speakers are switched to off, no sound comes through speakers.
I still have a Harmon Kardon 635 I Used for some years before the purchase of the 990, never heard music comming thru on speakers when using cans.
I am fustrated when I hear " I should be hearing " something that is not there.Is my unit faulty because it is acting like it should when cans are used. ??
If someone at Outlaw wants to prove me wrong, you pay for shipping both ways...