Altiverb in TDM and LE

Why does the LE version allow mono-stero versions of the impulse response, and TDM only allows mono-mono or stereo-stereo versions? Something wrong here? Thanks.

That is not true. HTDM version allows mono-stereo. Depends on the patch.

I'm talking about the RTAS version on an LE system and on a TDM Mix plus system. The LE system works fine, but for the TDM system, the source track has to be a stereo track. Anyone else?

Thats a PT limitation. RTAS on TDM has to have the same track count in and out, HTDM fixes this limitation anf Le never had it.

Not to sound like an ass, but if you're using a TDM system, you should upgrade to the HTDM version. Using RTAS in the TDM environment when HTDM is available defeats the reasons you pay the bigger $ for TDM. Or am I missing something here?

Well, unless your on OS X HTDM is not a possability. And not all plugs have HTDM versions. And it sounds like he has the non TDM version so he hasn't paid the $$$ for the TDM version, I don't think there is a TDM version??? is there. But yes if it is an option then you should up date.

You do not need to be on OSX to use HTDM. I use Altiverb HTDM in PT 5.1.1 all the time and it works great, even when I'm also using RTAS plugs. Why would you use the RTAS version in a TDM session when you can't put it on an aux track?