tomlinmgt
Moderator
Have you considered getting a digital room correction unit of some type for the subs? I went all in with floor to ceiling bass traps ("superchunk" style using OC703) in all corners and though that did tighten up LF content a good bit, it did virtually nothing to smooth out the peaks the room's dimensions were creating...so I was still plagued with nasty spikes at several points along the response curve. My silver bullet to eliminate the peaks was a DSpeaker Anti-mode 8033. G-damn thing was a game-changing life saver. The methodology is as follows...locate the subs where they get maximum room loading (typically in corners) and then let the digital filter shave down the peaky frequencies (determined after the unit listens to the room's response and decay characteristics with its own microphone...not unlike Audyssey but with better processing or algorithms or whatever). I simply won't use a sub(s) without one, and strongly recommend getting one in any hifi system that uses a sub or subs before you tackle the bass traps thing...which is a helluva lot of work. You can get control of mid and upper bass energy without going full monty floor to ceiling bass traps...thick corner traps can do the trick. And I definitely encourage doing something to remove the boom or overhang in that spectral region aa doing so really does wonders for the overall presentation from top to bottom...so I consider it pretty critical in a serious room tuning scenario.
As far as your first reflection locations and your furnishings creating an obstruction for the installation of any absorption panels (or diffusion if you're so inclined...or if you're really nasty, a mix of the two) I like portable panels as a solution to that pickle. Easy to make and particularly useful when experimenting with sitting position location, speaker placement, experimentation with location of acoustic treatment devices, etc. And it's easy to make any panel portable...a few different ways to skin that cat.
So, what kind of response do you get when you walk around the room and do a clap test? You hear many or any "zings", "pings" or any other goofiness? I'm betting not many...if any at all...with all of those non-parallel, opposing surfaces and carpet.
Michael
As far as your first reflection locations and your furnishings creating an obstruction for the installation of any absorption panels (or diffusion if you're so inclined...or if you're really nasty, a mix of the two) I like portable panels as a solution to that pickle. Easy to make and particularly useful when experimenting with sitting position location, speaker placement, experimentation with location of acoustic treatment devices, etc. And it's easy to make any panel portable...a few different ways to skin that cat.
So, what kind of response do you get when you walk around the room and do a clap test? You hear many or any "zings", "pings" or any other goofiness? I'm betting not many...if any at all...with all of those non-parallel, opposing surfaces and carpet.
Michael
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