Depends on the receiver you have, on my Denon's I can do a manual test tone under the speaker settings section. Audyssey will be more accurate than your meter, and moving the meter around while holding it or not having it in the exact placment with no room noise, you are unlikely to get the same results.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85