Bookcases or 703 panels

How to use REW, What is a Bass Trap, a diffuser, the speed of sound, etc.

Moderators: Aaronw, sharward

dnafe
Posts: 27
Joined: Wed Oct 29, 2003 1:34 am
Location: Ottawa, Canada

Bookcases or 703 panels

Post by dnafe »

Hi All

Another question:

My room is roughly 19X10X8 and there will be 3" thick 703 panels at all the mirror points in the room including the ceiling as well as 703 panels in each corner (floor to ceiling).

My speakers are Noteperfect Alpha pro's and are rear ported.

Now on one of the the the end walls I have the option of either putting 3-2X4 panels (side by side) between the corner traps or putting book cases 60" X 60" X 12" filled with books.

Any thoughts or suggestions would be appreciated on whether or not to do this and if so which end would be better, the far end or the speaker end?

Thanks

Don
Ethan Winer
Senior Member
Posts: 1063
Joined: Fri Feb 21, 2003 3:50 am
Location: New Milford, CT, USA
Contact:

Re: Bookcases or 703 panels

Post by Ethan Winer »

Don,

> I have the option of either putting 3-2X4 panels (side by side) between the corner traps or putting book cases 60" X 60" X 12" filled with books. <

A bookcase with books - no matter how randomly placed - is not a diffusor. At least, it's not a very good one. If you want diffusion back there either buy or build a real diffusor.

--Ethan
AVare
Confused, but not senile yet
Posts: 2336
Joined: Thu Feb 05, 2004 1:56 pm
Location: Hanilton, Ontario, Canada

Re: Bookcases or 703 panels

Post by AVare »

Ethan Winer wrote:Don,

> I have the option of either putting 3-2X4 panels (side by side) between the corner traps or putting book cases 60" X 60" X 12" filled with books. <

A bookcase with books - no matter how randomly placed - is not a diffusor. At least, it's not a very good one. If you want diffusion back there either buy or build a real diffusor.

--Ethan
Please post accurate information. Diffusors CAN BE MADE with books. They require the same attention to detail (size, depth, width etc) as any other diffusor.

Accurately;
Andre
Ethan Winer
Senior Member
Posts: 1063
Joined: Fri Feb 21, 2003 3:50 am
Location: New Milford, CT, USA
Contact:

Re: Bookcases or 703 panels

Post by Ethan Winer »

Andre,

> Please post accurate information. <

Please try not to be a jerk, okay? :roll:

> Diffusors CAN BE MADE with books <

The conventional wisdom is that a book shelf full of books in a random fashion is a serviceable diffusor. It is not. Yes, you could probably rig together such a contraption with books. But to duplicate a true QRD diffusor the books and shelves would all have to be a uniform height, the depths would have to be precise, the book spines would need to be more reflective than any book I've ever seen, and so forth. So for all that effort one might just as well build a real QRD diffusor from wood or MDF.

--Ethan
knightfly
Senior Member
Posts: 6976
Joined: Sun Mar 16, 2003 11:11 am
Location: West Coast, USA

Post by knightfly »

Ethan, either refrain from personal attacks or refrain from posting; your choice. I will NOT , repeat NOT, allow this here. Period.
Post Reply