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OK, here goes.
The bottom line is that adjoining my HT room, I have a utility room with a volume of 1475 cu. ft. (over 20x the Vas of 4 Fi IB3 18" subs). Though my HT room is set up on a screwy diagonal for livability purposes (hey, I like it this way!) the IB manifold would be right behind the TV between the mains.
The HT room itself is roughly 24'd x 15'w x 8'h. It is a basement room with studs and drywall backed by R13 insulation over concrete walls. The floor is padded carpet over concrete. The ceiling is smooth drywall throughout with a layer of R16 insulation between the ceiling and the floor joists approximately a foot above it.
The surrounds are set in a 6.1 configuration. I used in-ceiling speakers for a clean look. What I did right here was that when I finished the basement I built in 3/4" MDF enclosures between the joists and filled them with insulation prior to installing the ceiling. The engineers at HTD were great about helping me get the box volumes right.
FYI, I am also is the midst of upgrading my mains (TBD), for what that's worth.
My thoughts are:
- Build a manifold with drivers on 4 sides, 15” or 18” each. I like the 18” idea though I may not quite need to excess SPL.
- My design goals are: Retain as much punchiness as possible, while still getting cleanly below 9hz flat at over 110 db.
- The 18’s may be just too physically big, but perhaps worth it?
- The HT room itself is about 2500 cu. ft. with an adjoining 1400 cu. ft. room to the side via a 5 ft wide entrance.
- Use a Behringer EP2500 amp in 4 ohm mono(?) for power.
- I am using a FBQ2496 and REW for EQ.
- Retain existing bass traps and acoustic treatments.
- A friend of mine 2 doors down is a finish carpenter and will be available to assist with the manifold build and installation.
- I am open to insulating the carp out of the utility room if that will help both the IB performance (perhaps), and make a significant impact on limiting the effects of the IB being felt throughout the rest of the house (doubtful).
Pictures of both the HT room and utility room are shown below. The approximate manifold opening is shown via the X filled square in the photos. The white door you see in the HT room picture is to a bathroom unconnected to the utility room.
…I would like to open this for discussion and hear your thoughts.
Much thanks in advance,
Tim
:drive:
The bottom line is that adjoining my HT room, I have a utility room with a volume of 1475 cu. ft. (over 20x the Vas of 4 Fi IB3 18" subs). Though my HT room is set up on a screwy diagonal for livability purposes (hey, I like it this way!) the IB manifold would be right behind the TV between the mains.
The HT room itself is roughly 24'd x 15'w x 8'h. It is a basement room with studs and drywall backed by R13 insulation over concrete walls. The floor is padded carpet over concrete. The ceiling is smooth drywall throughout with a layer of R16 insulation between the ceiling and the floor joists approximately a foot above it.
The surrounds are set in a 6.1 configuration. I used in-ceiling speakers for a clean look. What I did right here was that when I finished the basement I built in 3/4" MDF enclosures between the joists and filled them with insulation prior to installing the ceiling. The engineers at HTD were great about helping me get the box volumes right.
FYI, I am also is the midst of upgrading my mains (TBD), for what that's worth.
My thoughts are:
- Build a manifold with drivers on 4 sides, 15” or 18” each. I like the 18” idea though I may not quite need to excess SPL.
- My design goals are: Retain as much punchiness as possible, while still getting cleanly below 9hz flat at over 110 db.
- The 18’s may be just too physically big, but perhaps worth it?
- The HT room itself is about 2500 cu. ft. with an adjoining 1400 cu. ft. room to the side via a 5 ft wide entrance.
- Use a Behringer EP2500 amp in 4 ohm mono(?) for power.
- I am using a FBQ2496 and REW for EQ.
- Retain existing bass traps and acoustic treatments.
- A friend of mine 2 doors down is a finish carpenter and will be available to assist with the manifold build and installation.
- I am open to insulating the carp out of the utility room if that will help both the IB performance (perhaps), and make a significant impact on limiting the effects of the IB being felt throughout the rest of the house (doubtful).
Pictures of both the HT room and utility room are shown below. The approximate manifold opening is shown via the X filled square in the photos. The white door you see in the HT room picture is to a bathroom unconnected to the utility room.
…I would like to open this for discussion and hear your thoughts.
Much thanks in advance,
Tim
:drive:
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