Yup, You guessed it. When our church band practices and has service we have a neighbor about 500 yards away complaining that the bass shakes her house. We have 2 QSC 181's for our subs and no sub frequencies going to our mains. Do any of you guys have any sound treatment advice for the building besides "turn it down"? The building is in New Hampshire so we have the typical 1/2" drywall and insulation with fiber siding. The room is 65x100 with 14 foot peak ceiling. Thanks guys, I know she is probably complaining just to complain but we have to make her happy. Thanks, Steve
Yup, You guessed it. When our church band practices and has service we have a neighbor about 500 yards away complaining that the bass shakes her house. We have 2 QSC 181's for our subs and no sub frequencies going to our mains. I've always like QSC products, but, DAMN, these guys are GOOD, when 2 of their 18" subs can shake a house over 1500 feet away. Hammer
Most local Sound ordinances I've ever read, specifically detail allowable sound level pressures to a property line and also address a time period of the day where noise levels are allowable.
Go to the house and try to determine if there is a natural resonance between the church and her house at some low frequency or range of frequencies. This requires running some sweeps or band passed noise with spectral analysis at the lady's house. If is is just a spot frequency that may be easier to deal with than trashing all the bass end. JR
...You might try sitting the subs on neoprene 'waffle' pads or compressed fiberglass 'pucks' to see if that offers any improvement, even if it does not solve the problem it may help give some insight into whether the problem is primarily airborne noise or groundborne vibration.
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