New Garrett Theater

[AVSMike]

I figure even with me doing all the work and reusing much of my equipment, this is still going to cost me 40/50k. Since I want to spread out the cost on this build over time, I am going to go ahead and buy some items. Going to order the side surround speakers for the new room and just use them in my existing room. Going from Volt 10 side surrounds to RBH 831-SW/R on wall speakers. Later I will be ordering a pair of RBH SV-831R speakers for the wides. The Volt 10 will be repurposed for Atmos in the new room. I have four Volt 10's. Will need to build two more.

Side surround: https://www.rbhsound.com/shop/831-sw-r-13797?page=2&category=14&order=name+asc#attr=296
Wides: https: https://www.rbhsound.com/shop/sv-831r-black-13931?page=3&category=15&order=name+asc#attr=167

[bmoney]

Why not go volt10 all around? You can even bury the volt 10’s in wall if you wanted. 

[AVSMike]

In my current theater I was using sealed Volt 10 for side and rear surround and ported Volt 8 for the four atmos speakers. In the new room I will be using six sealed Volt 10's for the atmos. The new room is much larger, so I can use a larger speaker for side and rear surrounds. Volt 10's are not very good off axis and their response could be a little smoother. 

[AVSMike]

The RBH 831-SW/R side surrounds arrived yesterday. Here is a picture of one of them next to an RBH 661-SE in Burled Walnut. The 661-SE's will be used as the rear surrounds. The 661 looks small compared to the 831 and the 661 is nearly 2' tall. 

New Garrett Theater

[AVSMike]

just ordered three RBH SI-831/R9 speakers for the baffle wall. The wider dispersion on these will do better than the horn loaded TPL-150H speaker in a flat baffle. I tested this yesterday. Sound wise on my angled baffle, it was hard to tell a difference, but off angle the RBH's did better.
https://www.rbhsound.com/shop/si-831-r9-13788?page=3&category=13&order=name+asc#attr=71 

[Paul Heroy]

Very nice, Mike. The RBH 831s are wall mounted? That's a nice setup to have 831s across the front plus sides. What's the dispersion like on their AMT?

[AVSMike]

Very nice, Mike. The RBH 831s are wall mounted? That's a nice setup to have 831s across the front plus sides. What's the dispersion like on their AMT?

120 degrees horizontal. Whereas the TPL150H tweeters are 80 degrees horizontal. Vertical is 30 degrees, which I like, since you get very little floor or ceiling bounce.

[AVSMike]

My three RBH SI-831/R9 are scheduled to be delivered tomorrow. I also decided to try the large commercial ISCO 1.25x Optic Cinema DLP Widescreen attachment lens. This lens is massive and weighs around 20 pounds. Lens is also scheduled for delivery tomorrow. It is a horizontal expansion lens, but is supposed to provide the sharpest image of all the A-lens. My new room with have a longer throw with a throw ratio of 2.61. I should only get 5/16" of pincushion, which I can shoot off the screen. Been designing in my head, the mount for the lens. Should be pretty easy to make a mount that adjusts up and down and tilts. Plane on the lens sitting in the rear wall with the projector outside of the room. 

[AVSCraig]

That ISCO lens sure wouldn't work with my 1.4 SW throw distance!

[AVSMike]

That ISCO lens sure wouldn't work with my 1.4 SW throw distance!

Sure it would. This is the large commercial 18lb ISCO lens. Will work with a much shorter throw distance than the DCR. I believe it works down to a 1.25 throw. But that throw is based on the width of the 16:9 image, not the width of the scope image. The diameter of this lens is 192mm (7.56")

[AVSCraig]

Sure it would. This is the large commercial 18lb ISCO lens. Will work with a much shorter throw distance than the DCR. I believe it works down to a 1.25 throw. But that throw is based on the width of the 16:9 image, not the width of the scope image. The diameter of this lens is 192mm (7.56")

I'd probably need a curved screen - https://www.avsforum.com/threads/isco-1-25-minimum-throw.3219830/

Anyway, I'm happy with my DCR lens. No need to go down new rabbit holes in my theater.

[AVSMike]

Lens arrived. Not much smaller than a dinner plate. 

New Garrett Theater

[AVSMike]

Ordered parts to build a stand mount, where I can adjust height and tilt.

[AVSMike]

The three RBH SI-831/R9's arrived early evening yesterday. Shortly after arrival, we had a storm that knocked power out for several hours. These are designed to be mounted in a baffle wall. 

New Garrett Theater

[AVSMike]

I guess I am moving to an RS4200. Sold my RS4100 today.