Preamplifier that supports 3D movie

Thanks for all the replies.

Are 3D capable preamplifiers all new models?

I have heard that sometime you can get great price on last generation (i.e. the one before the current generation) flagship models, and since those models were designed/made as flagship products, you can still get great quality and probably they provide better quality/price ratio than brand new ones. Are there such 3D capable preamplifiers models?

I was originally looking at Lexicon MC-12, and then found out that it is not capable of handling 3D movies.

Thanks!

Thanks for the information. I think I have some idea about preamp now.

Here is another question regarding projector screen.
Using Da-lite 106" (diagonal) fixed frame screen as an example, when I search for them on Amazon, most of the screens are $1k+, while on bhphotovideo.com, most of the screens are in $500-$700. I doubt that for the same product, the price difference will be this big. So I am assuming there must be some differences in the screens they are selling.

My questions regarding the screens:
1. What specs should I look at for screen? I know gain is one of them. Is a gain around 1.0 (or slightly above 1.0) the best for a HT with no (or maybe a little) ambient light? I have read projectorcentral.com and know something about screen gain and projector throw distance, etc.
2. What other spec should I look at for a projector screen?
3. What are the good brands? Da-lite?
4. What is a good place to buy the screen?

Thanks!

Thanks for the reply.

I don't have anything for my HT yet, I am just planning, trying to find out how my system should look like.

I am thinking about Panasonic PT-AE7000.

I didn't know that for 3D projection the screen needs to higher gain. I will do more research on that.

I guess if I buy the screen material and make the frame myself, it will be a lot cheaper?

I just registered at avsforum, and am reading some threads now.

Thanks.

I heard that DLP projector has to be positioned (almost) exactly while LCD projector is much flexible in that. That's why I am heasitating to use a DLP projector.

For a 2 projector setup, you have to hang them up on the ceiling side by side? Or do you have to physically exchange the projector when you want to switch between them?

Thanks.