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Listening Room Dimensions... I'm building one and need your help

Sounds simple but I'm having a hard time coming up with most 'ideal' dimensions for this dual -purpose room that I'm building this year (hopefully).  



Purpose #1:
listening room for 2-ch hi-fi 
I have BIG speakers- several pairs 
*ideal is approx 25'x40'x12'
*want to sit 6-10 people in prime listening area 

Purpose #2: (other side of the room)
band rehearsal area (loud guitars, drums, keys, PA system, lots of 
*ideal is...bigger the better 

- I've read really good threads about general guidelines especially from Doctor Fine- hope he jumps in...
- I know the Cardas, and other rule ratios. But this room is a combination room so I'm not sure how much that changes anything 
- I know I'll probably have to use quite a bit of sound treatment 


My first inclination before research was 30' x 50' x 11'. 

What dimensions would you recommend and why??



ramoneo14

Showing 1 response by corelli

corelli
1,036 posts
 
The above are all good suggestions.  I did similar research when building my dedicated audio room. (You can check out my virtual system)  I must say, when I first listened to my room before any treatments were done, I recall a distinct disappointment relative to a small random audio room in my prior house.  

Just last night I was thinking how pleased I was with the transformation of this room.  The change was due to room treatments and tinkering with placement issues.  And I'm not quite done.  Still have some diffraction additions I will make.  

So ideal ratios are a good place to start, but like a fine musical instrument the room will need to be tuned for sure.
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