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-   -   8000 cf3 room will 8 ib318 in ib work? Do i need 16 ib318 v2? (https://www.avsforum.com/forum/155-diy-speakers-subs/3042740-8000-cf3-room-will-8-ib318-ib-work-do-i-need-16-ib318-v2.html)

Russell Burrows 01-12-2019 02:41 PM

8000 cf3 room will 8 ib318 in ib work? Do i need 16 ib318 v2?
 
Planning room 8000 cubic feet to 10,000 cf3?Length 27 to 31 feet
Width 20 or maybe up to 23 feet
Height 15 to maybe 17 feet


Will 8 ib318 v2 in 4 manifolds sound okish loud or am i going to need 16 ib318 v2 subwoofers ?


Wife just popped by and said ask about 32 ib318 v2 subwoofers eeek
Room will be cast concrete with steel rebars.
Nothing but concrete but wondering about room gain ?
Wondering about going to 30 feet Length to fit bass waves and minimize room boom

Gorilla Killa 01-12-2019 02:50 PM

Your room is huge, if you have no reason not to do 16 then yes you should.....32 sounds like you have permission to do that as well, proceed.

I dont see 8 being enough, it will still sound good, just not good enough.

With that height you should research Dual Bass Array, 18 in that would be epic

Russell Burrows 01-12-2019 03:16 PM

Quote:

Originally Posted by Gorilla Killa (Post 57427774)
Your room is huge, if you have no reason not to do 16 then yes you should.....32 sounds like you have permission to do that as well, proceed.

I dont see 8 being enough, it will still sound good, just not good enough.

With that height you should research Dual Bass Array, 18 in that would be epic



Thanks i just want to avoid room boom as i want to fit a 30 feet Length bass waves as its easier tthan trying to absorption low bass waves

mikela 05-22-2019 09:38 AM

Quote:

Originally Posted by Russell Burrows (Post 57427944)
Thanks i just want to avoid room boom as i want to fit a 30 feet Length bass waves as its easier tthan trying to absorption low bass waves

Boom is a result of resonant modes which are tied to your room dimensions. A DBA will virtually eliminate the subwoofer bass room modes but it will not address the bass modes (from other loudspeakers in the room) above the crossover frequency. An SBA will address vertical and horizontal room modes, however, absorption is needed at the rear of the room to address the length mode in the room. The absorption also serves to address the bass modes above the subwoofer crossover frequency.

I agree with GK that with that size room, you have the perfect set up for a DBA or SBA.


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