Surround encoder lowers output level of exported .wavs??

I've been playing with the surround encoder for awhile now , in Audition 1.0 and the free trial version of 3.0.  I record and export 6-channel sessions as
either interleaved wav or 6 mono wavs.  When I was using Audition 1.0, there was no change in channel level in the exported file versus the original recording level, i.e., if the 'Left front' channel peaks at 0dBFS during recording, so does the Left front channel of the exported file, when I re-open it in Audition or Audacity.
But with Audition 3.0, something odd is happening.  All of the exported channels are -3dB or so compared to their original recording level!  I.e., a track that originally peaked at 0dBFS , peaks at about -3dB FS when I reopen it after export.
I have checked that the output levels for the Surround Encoder and are all at max for each channel (and 0dB gain/cut for the master output slider).  I don''t see anything in the preference settings that would account for this,  I happens regardless of exporting as interleaved waved or 6 mono wavs.  It does NOT  happen if I record and save 2-channel audio in Edit View.
Any ideas?  Did something about surround encoder export change  between Audition 1.0 and 3.0?

krabapple wrote:
 I don''t see anything in the preference settings that would account for this,  I happens regardless of exporting as interleaved waved or 6 mono wavs.  It does NOT  happen if I record and save 2-channel audio in Edit View. 
Any ideas?  Did something about surround encoder export change  between Audition 1.0 and 3.0?
No, but the mixer did. I haven't tried this, but if you go to Preferences>Multitrack and change the pan law default setting from -3dB center to L/R cut Log, the chances are that your mix will come out 3dB higher.

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