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Hi, after having postponed this for a long time, I'm really happy to present you my HT, at last.

For many years I've only dreamed about having this dedicated space and this is why my choice to call it Utopia.

Utopia has been designed from scratch and is a full DIY realisation.

Plans has been done with 2D CAD and then the whole structure has been ported to SketchUp in 3D.


- Room is about 11x16x8 foot and is a room in a room contruction (mainly because I've neighbors) on my basement.

- 6 seating over 2 row

- baffle wall for the LCR front loudspeaker system, as well for the subwoofer

- LCR loudspeakers are 2 way systems with Constant Directivity horn, flush mounted on the baffle wall

- AT screen, 100" wide, 1.78:1

- 7.1 layout (Dolby guidelines)


Before starting with some pictures, I wish to thank to the whole community on the AVSforum: althought my partecipation to the forum has been really silent, an invaluable help has come from reading the projects showed here.


Starting from the finish, the following are the pictures of the theater






One of my favorite is the LCR rear screen lighting: a guaranteed "WOW!" from guests!
 

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Some SketchUp renderings





The detailed 3D project



The basement



Framing - 2"x4" studs has been used







Baffle wall is up - it has been made in 4" aerated concrete



Baffle wall with loudspeakers niches mounted as well the subwoofer window
 

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Insulation and paneling - Drywall 2x5/8" used for walls and ceiling







Riser building





Entrance steps - 1" MDF



Side wall with the ventilation conduit and fabric frames housings





Back wall with rack ventilation conduit, fabric frames housings and electrical conduits
 

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Carpeting done



Ceiling acoustic treatments and fabric covering





Back wall acoustic treatments and fabric frames - note: the black niche is for the air conditioning unit



The screen, at last! The frame (with LCR boxes), the painted frame with acoustic treatment, the finished front wall (no screen at all...)







The 18" subwoofer on the baffle wall



Utopia entrance


Welcome to HT Utopia!


Davide
 

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Very interesting construction thread. Thank you for sharing, Any more details on those speakers? I am in the process of building some constant directivity horn speakers myself.


That 4 inch aerated concrete baffle wall is the first I've seen mentioned here. What do you see as the advantages of using that material over drywall, plywood or MDF? Very interesting. Not sure if we can even get that here very easily.


Found this video that shows the process of working with that material, I don't understand a word of it but I get the fundamentals:

http://www.youtube.com/watch?v=rMuwY...eature=related


Love the speaker lighting effect.
 

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Great stuff! That really does look like a bat-cave set up. I mean that in a good way.

It looks like the room is set up for an intensive movie experience with no distractions.

I'm super impressed with your design and your work! Thanks for posting it.
 

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Very nicely done. Thanks for sharing.


One thing that stands out to me is the screen wash lights mounted along the side walls. I've never seen that done before. It certainly opens up a lot of options for lighting, since many people have columns that they could put those lights in, rather than mounting them in the ceiling.


Congratulations on your new space.
 

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Thanks to all for the kind words!


About the aerated concrete, this is called Gasbeton, and I've used this among framing+drywall mainly for curiosity: a friend of mine tell me that is really simple to work with and that has been true (and I've never build a concrete/brick wall before). BTW, this never float



About the front LCR loudspeakers, here is a picture:



This is a DIY project, equipped with 2x6.5" PL18W09 Vifa woofers and 1" horn XT1086 + driver ND1090 both from 18 Sound.

They are bi-amped via a Xilica XP4080 loudspeakers management system.


About the theater lighting, here in Italy there is a movie theater called Arcadia, a truly reference theater, that use a light pipe on the base of each of the screens, the light from the pipe is reflected by the screen and then illuminate the room. I've used the same concept in a different manner.
 

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Quote:
Originally Posted by ildigital /forum/post/18891138


About the theater lighting, here in Italy there is a movie theater called Arcadia, a truly reference theater, that use a light pipe on the base of each of the screens, the light from the pipe is reflected by the screen and then illuminate the room. I've used the same concept in a different manner.



Wow, I didn't even realize it at first when I looked at your pictures, but you have NO LIGHTS in the room except for the front-facing screen wash lights. And you're right, it illuminates the entire room very well.


I wish I had thought of that when I started my room. It's probably too late for me to add those lights at this point. But I would sure love to do it, it really brightens up the room a lot.
 

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Love the BMS horns.......well done! Your dimensions are about the same as mine but due to the doorway position i can't add a second row...now. You've inspired me to figure out a way to make it work. Thanx and again, well done!
 

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Love your theater, thanks for sharing it with us. What home theater chairs did you install ? Does your screen have apsect ratio masking?
 

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To Greg: the speaker uplighting are LED spots, not hi-bright types and quite cheap that I've bought at a local store. They have the right brightness, a narrow enough beam and they do not became hot as halogen lamp (rear the screen there are fabrics and the screen itself)


To HDGTX: there is a lot of DIY on Utopia, also for the theater chairs. They are Ikea's Poang that I've modified: I've mantained only the seating and I've added 1" MDF side panels, the arms of the chairs are from cutting the original Poang structure. About the screen, the aspect ratio is fixed to 16:9, thanks to the blacks from the JVC DLA-HD350.


Thanks
 

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One of the more creative builds I have seen! Very nice indeed.


Love the Ikea Poang chairs. There's so many many unique and impressive DIY'er projects in your theater!
 

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Great work! Looks sharp and innovative - and gives many great ideas. I envy your theater and your location! Milan is a blast - perhaps the best gelato I had in Italy I got there. Best to you and thanks for sharing...
 

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Thanks for your appreciation for both the theater and Milan
 

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Great job! Personally I like this look. Looks a little bit like a padded room (not that there's anything wrong with that).


How are you finding the acoustic room response so far?
 

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Well, this kind of finishing of the theater is really modular about the acoustic treatments: you can hide wathever you want under the fabric frames.

Starting from the point to scaling, where possible, the movie theater experience, I planned the acoustic of Utopia so to have a very absorbents ceiling and back wall and a mix between reflection, diffusion and absorption for the side walls.

The reverberation time is between the ITU mask for this room volume, although near the bottom of it, and very regular over the frequency.

Please visit the Utopia website to see the bibliography that has been really helpful on designing the theater.


Sound is great, for my taste.



Thanks
 
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