surround sound speaker calibration

[negreanu]

How exactly.

I have measured the speaker distance to the reference seating point and set that int he system in meters.

The unit provides a white noise tone from each speaker in turn to let you adjust the +/- db.

I have got hold of a sound meter and understand that the sound from each speaker should be set to 75db or thereabouts.

Now the issue I have is during the setup tones to measure at 75db. The master volume of the unit is still changeable so 75db is obtainable by increasing master volume. It would make sense to me that the master volume is disabled during this setup process but it is not...

So what do I set the master volume at on the surround system......confused...

[IMHO]

What AVR are you using?