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I am nearing the completion of my theater build and the last thing up to do is build the false wall (using an AT screen). However a slight wrinkle is that the speakers I am using employ a built-in 10 degree down tilt of the speaker axis. They are JBL Pro Cinema C211's
If I place the speakers as suggested by JBL, the bottom of the speakers would need to sit 7ft off the ground (MLP is 20ft from speaker and ear height is 44" off the floor, so quick right angle calculation says the speaker height has to be 40" higher than the ear height, as the tweeter on these are near the bottom of the speaker).
Since the ceiling is only 9ft tall and the speaker itself is over 30" high, this isn't doable. Plus I wouldn't want the speaker to be right up against the ceiling due to interaction/acoustics.
My first thought was flipping the speaker upside down so it now has a 10 degree up tilt. However JBL (when I ask them) said they can't say if this would work well or not.
The other though was placing the speakers the normal position but using wood shims to give them about a 10 degree up tilt, making the actual axis response flat and then I can place them at a reasonable height so the tweeters are in line with ear height of the MLP.
But I am not sure if I am either over thinking this or misconstruing if the built-in 10 degree axis tilt of the speaker is something I can overcome with simple geometry fixes such as changing speaker orientation or changing the actual physical angle of the speaker cabinet.
Any thoughts/advice?
Thanks!
If I place the speakers as suggested by JBL, the bottom of the speakers would need to sit 7ft off the ground (MLP is 20ft from speaker and ear height is 44" off the floor, so quick right angle calculation says the speaker height has to be 40" higher than the ear height, as the tweeter on these are near the bottom of the speaker).
Since the ceiling is only 9ft tall and the speaker itself is over 30" high, this isn't doable. Plus I wouldn't want the speaker to be right up against the ceiling due to interaction/acoustics.
My first thought was flipping the speaker upside down so it now has a 10 degree up tilt. However JBL (when I ask them) said they can't say if this would work well or not.
The other though was placing the speakers the normal position but using wood shims to give them about a 10 degree up tilt, making the actual axis response flat and then I can place them at a reasonable height so the tweeters are in line with ear height of the MLP.
But I am not sure if I am either over thinking this or misconstruing if the built-in 10 degree axis tilt of the speaker is something I can overcome with simple geometry fixes such as changing speaker orientation or changing the actual physical angle of the speaker cabinet.
Any thoughts/advice?
Thanks!