Hello!

I need some help with my HT/Game/Guest room. The room are in the basement and all the walls, floor and ceiling are concrete.
The picture shows the current planned layout.
http://img28.picoodle.com/img/img28/4/6/17/f_HT04m_16b3289.jpg

The projector is a ceiling mounted Sanyo PLV-Z2000, the screen should be a 100" fixed frame.
On the side walls by the front speakers there are two beds hidden by a curtain of heavy black fabric. I hope the beds are going to work as a basstrap. The room will also be a guest room.
Behind the front speakers there are 2" fiberglass absorbers. Then there are QRT diffusers to dampen the first bounce.
By the rear speakers there are more 2" fiberglass absorbers.
The back wall has a computer table, two IKEA bookshelves, and one more QRT. A wall to wall carpet are going on the floor.
I dont know what I am going to do on the ceiling as it is only 6' 11".

What do you think? Could this work or shoud I start over?

Hello!

I need some help with my HT/Game/Guest room. The room are in the basement and all the walls, floor and ceiling are concrete.



That looks nice to me. Is the ceiling really made of concrete?!!?

Yes it is! :) I've drilled in it... The house is built in 1962 so I almost think the basement where ment to be a shelter.

Zacke,

What program did you use for the layout? What's against the walls on either side in front of the seating?

Zacke,

What program did you use for the layout? What's against the walls on either side in front of the seating?

Those are QRT diffuser thingymabobs (per his room description) to scatter the first reflection.

Zacke,

What program did you use for the layout? What's against the walls on either side in front of the seating?

I've used MAYA 2008 from autodesk for the layout. And yes, as frorule wrote the things are QRTs. Check mhsoft.nl/diffusor.asp for more info.

I need some help with my HT/Game/Guest room. The room are in the basement and all the walls, floor and ceiling are concrete. The picture shows the current planned layout.

I'll tackle each item one at a time:

On the side walls by the front speakers there are two beds hidden by a curtain of heavy black fabric. I hope the beds are going to work as a basstrap. The room will also be a guest room.

While the beds will soften some of the high end bounce in the room, they won't work as bass traps at all. 4" or 6" panels made with mineral wool or rigid fiberglass spaced a couple of inches off the back wall and straddling all of the corners are what's needed. You can keep the beds in the room, of course.

Behind the front speakers there are 2" fiberglass absorbers. Then there are QRT diffusers to dampen the first bounce.

I know what you're going for, but I'd go with 2" absorbtion rather than QRD's there. The room is pretty small, so the cost of the QRD's would far outweigh their benefit. 2" absorption at the first reflection points will keep the sound stage balanced, tight and defined...much better value too. Don't get me wrong...I'm not a diffusion hater; this just isn't the best place for it.

By the rear speakers there are more 2" fiberglass absorbers.

That works!

The back wall has a computer table, two IKEA bookshelves, and one more QRT. A wall to wall carpet are going on the floor.

It would be great to get 4" or 6" bass traps on the back wall instead of book cases (which make poor diffusers) or the actual QRD planned. The need to get the low end under control is much more urgent than diffusing high end.

I dont know what I am going to do on the ceiling as it is only 6' 11".

That's pretty low. Depending on exactly what speakers you're using you may have to treat the ceiling between the viewing/listening position and the monitors. 2" panels are perfect for this.

What do you think? Could this work or shoud I start over?

I can tell that you thought through this, and that's great. I think you could do a much better job for a lot less money if you rely on broad band absorbtion to deal with the majority of the room issues rather than diffusion.

Frank