The gdx theater has 48 surround speakers and is in HD, but it is a smaller screen compared to the iMax
GDX™: Giant Digital Experience™ is Goodrich Quality Theaters’ premium large format theater experience with crystal clear imaging and an amazing bright picture, delivering movies on a massive scale with massive sound. All GDX™ theaters feature Dolby Atmos for powerful and immersive sound-listening experiences. Dolby Atmos® adds overhead speakers for the most realistic sound effects you’ve ever heard. 4K projection gives you the most vivid colors with the sharpest details, brightest images and highest resolution picture available. All features are only a $1.50 premium in GDX. An additional $2.50 would apply if the feature is in 3D. Look for the "GDX" symbol near a movie and showtimes. *Not all films displayed in GDX™ feature Dolby Atmos®.
A nice move set....
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