I'm still in the planning stages of my HT, and one of the big decisions I'll need to make is whether or not I'll be able to use an IB sub. My room is huge, but once I pack in a false wall, two rows of seats, and bar seating at the back, I end up a little limited for space for an IB. There is a place in the back that looks promising, but I have a few questions about it.
1) I've read that it's not good to put your IB at the back of the theater. Is this true, and why? Also, I thought I could put another sealed sub at the front to help with room modes. Is it OK to put the IB at the back if used with multiple subs?
2) Is my space big enough? I understand it needs to be around 7xVas (IIRC), but I'm not sure what the units are on the subs I've looked at (mm, s.f., square inches, etc). My space looks like it will be a little less than 247 c.f. once you account for drywall (2.5 x 11 x 9). Is that big enough for a dual IB setup?
3) Could I use the space under the riser to add volume (rather than a bass trap), or will I end up with a T-line?
Here's a pic of the space to help. The red line indicates the space I would like to block off for the IB.
Thanks!
1) I've read that it's not good to put your IB at the back of the theater. Is this true, and why? Also, I thought I could put another sealed sub at the front to help with room modes. Is it OK to put the IB at the back if used with multiple subs?
2) Is my space big enough? I understand it needs to be around 7xVas (IIRC), but I'm not sure what the units are on the subs I've looked at (mm, s.f., square inches, etc). My space looks like it will be a little less than 247 c.f. once you account for drywall (2.5 x 11 x 9). Is that big enough for a dual IB setup?
3) Could I use the space under the riser to add volume (rather than a bass trap), or will I end up with a T-line?
Here's a pic of the space to help. The red line indicates the space I would like to block off for the IB.
Thanks!