Listening room ceiling type?


I'm in the planning stages of my listening room in my basement. The dimensions will be approximately 13' x 19' with the ceiling measured 7'7" from concrete floor to the bottom of the joists above. The joists are 2x10 with a finished length of just less than 9". It is my intension to fill the space between joists with Roxul mineral wool bats. These bats have a 3" thickness.

Should I stick three of the bats between each joist to fill the space or say two bats with an air space between the floor above and the first bat and again an air space between the first bat and the second with no third bat at all. The joist run perpindicular to the direction the speakers will be pointing.

Also, I have had a suggestion to us burlap to cover the ceiling but thought this might be to absorbtive. I've been considering a drop ceiling of 2'x2' panels (1st choice) and a fixed drywall ceiling (2nd choice if not 3rd after burlap). Any advise from some of you folks in the know would be much appreciated. Thanks, Tom.
cosmic_void

Showing 1 response by ozfly

I wouldn't go with a drop ceiling: Too much shaking around. If burlap is OK with you, I would go with Marco's suggestion: Use sound insulation (like what you were thinking about) between the joists up against the ceiling and leave an air space. An effectively taller ceiling will give you better acoustics and you can add half a foot of height with the burlap approach.