Wayne Parham Messages: 18835 Registered: January 2001
Illuminati (33rd Degree)
You would have to measure to know what the treatments were doing, so if you have measurement gear, try a sweep or burst with the treatments and another one without and compare the difference.
My gut feel is the treatments may help in the midrange and higher frequencies but probably don't do much at low frequencies. Room modes are probably just the same with or without those treatments. But they may really help you in the midrange.
Bass damping really requires large panel absorbers. The rooms that are most troublesome have hard walls, like concrete, brick or stucco. Sometimes, the walls made with framed drywall construction damp the bass fairly well even without treatments. Multiple bass sound sources help smooth modes beyond that.
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