Why does Audition impose a -6 dB limit on mono files?

Can someone who has been through this tell me how to fix it--(other than do a work around)?

I am a voice over talent and I’d like to get a nice full wave form.

Presently the maximum Db that I can input is restricted to -6 and I am normalizing everything to -1 and then editing.

As it stands, you are doing the right thing (in fact the only thing) - and yes, it's a workaround. Unfortunately...

I will raise it again with the developers.

Thanks Steve!

Please post if you get any more info for me.  I'll keep checking back here.  Is this happening only with an Emu preamp?

Thanks again!

Kathy

Is this happening only with an Emu preamp?

I used the E-mu simply because it has the facilities to measure what's happening accurately. The problem is with Audition, and as far as I know it's universal.

Thanks again Steve.  If I upgrade to the new version of audition, will I still have this problem?

Kathy

Just chiming in that I've experienced this very problem last week on my laptop with AA 2.0.  I was using an M-Audio Fast track Pro USB soundcard with the latest ASIO driver installed.  -6db threshold while recording mono in Edit View - clipping when trying to boost the gain. 
It looks like I'll be using Multitrack View to record from now on until it's determined that AA 3.0 doesn't experience this same problem (I'm smart enough to know that there's not going to be a patch to correct this in 2.0). 

I remember this coming up years ago with Cool Edit 1.2 and it is fixable. I just can't remember how we did it!

If you can nail down the right settings you can record all the way up in mono on all versions of Cool Edit Pro and Adobe Audition. What I can't track down is the change in settings required to make it only record up to -6dB, which isn't much help, I know.

Well, there's a very simple workaround - record in stereo! Either with the mono source fed to both channels or only one, it doesn't matter. Then you have a couple of different procedures to save only one channel as a mono file.