| Re: How many subs is too many?
Ya generally speaking multiple well placed subs will smooth response in the room as a whole. Don't forget though, that other than smoothing response multiple subs will not produce more output unless they are in the same place. If they are in the same place 2 subs will be 3db louder than 1 and 4 3db louder than 2. So your four subs will be only 6 db louder than 1 if and only if they are excursion limited. In other words, if your amp can't drive all four to their excursion limits you are not going to gain output from additional subs. Output is a function of power. My advice would be to look for a high sensitivity driver and port the boxes to gain the most output. Good luck and let us know!
Any chance of a ceiling mounted IB for those 18's?
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