... if doing a manifold was a compromise. Thomas is probably somewhat aware of my situation as he helped me over at the cult a few months ago but I have a more generic IB question. I have a 16” deep space that I’m going to use for an IB. It is 16” by over 800 square feet so it should be plenty of volume for and IB. But, with only 16” of depth, I’d have to use 12” drivers if I did a manifold. However if I do a surface mount array, I could use 15”s or 18”s.
I know one of the advantages of a manifold is physical, but not audible cancellation. However, if you were in my situation where you would have to user smaller drivers would you forgo that advantage to be able to use smaller drivers? The reason I’m considering doing just that is that my room is going to be about 820sq feet x 8 foot height, so I’ve got a lot of volume to fill with bass.
Many reasonably priced 15” subs model comparably to TWO reasonable 12s so I could save a lot of money going with larger drivers, but I need to know if I’m crazy to try and do an array of four 15s or 18s mounted to the same surface (reinforced of course) with no mechanical cancellation due to a manifold. BTW, another piece of key information is that this space a void in the ceiling, so the subs would all be down-firing into the front of the room between the L/R mains.
I know one of the advantages of a manifold is physical, but not audible cancellation. However, if you were in my situation where you would have to user smaller drivers would you forgo that advantage to be able to use smaller drivers? The reason I’m considering doing just that is that my room is going to be about 820sq feet x 8 foot height, so I’ve got a lot of volume to fill with bass.
Many reasonably priced 15” subs model comparably to TWO reasonable 12s so I could save a lot of money going with larger drivers, but I need to know if I’m crazy to try and do an array of four 15s or 18s mounted to the same surface (reinforced of course) with no mechanical cancellation due to a manifold. BTW, another piece of key information is that this space a void in the ceiling, so the subs would all be down-firing into the front of the room between the L/R mains.
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