Posted by SteveBrown [ 155.188.183.5 ] on May 14, 2007 at 09:54:36:
In Reply to: "Slam" is not real bass posted by Bob Brines on May 13, 2007 at 06:52:15:
Well, on closer measurement this weekend, using my Rives disc that is recorded to take into account the problems with the RS SPL Meter, I find that my open baffles get down to 32.5hz with strong results (using a 15" Parts Express IB on the bottom w/seperate amp). But what I did find that was interesting is a big hole (-10 db or so) around 80 to 100hz. This may be related to crossover and/or phase, I'll have to look into that. I suppose it may also have to do with the spacing of the two drivers (the FR and the sub) on the baffle.
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