I know it's a dumb question but how do you verify the speaker levels with a SPL meter. I just got one and just wanted to check how accurate Audyssey got it. I though the AVR would be able to output a test tone at 75dB that I would be able to output on each speaker individually and verify that I have indeed 75dB but I can't find this option. If I use a test tone CD, what do I use as a reference? Basically, how do people that calibrate their system manually proceed?
Thanks.

Bruno
M80s/VP180/QS8s/EP600/AVR-890
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