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Test Drive
McCauley M421 Quad 21" Subwoofer
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<blockquote data-quote="Bennett Prescott" data-source="post: 31958" data-attributes="member: 4"><p>Re: Colt's Neck High School Graduation</p><p></p><p>Evan,</p><p></p><p>I already put in a 3dB boost at 30Hz to try and get the sub to sound a little "bigger". Look at that rolloff. A 6dB boost at 20Hz wouldn't do shit, you'd need more like 15dB to make it to 20Hz. That's totally unrealistic, IMHO. I don't have an impedance meter so I don't know what the tuning frequency of the box is or the resonant frequency of the drivers, but it is just totally done below 30. Maybe if it had a 2nd order acoustic rolloff it could be equalized to get another 1/3 octave LF extension a la Bag End, but that is 4th order easy, maybe 6th order rolloff. Who knows how the box would behave with a big boost down there, as well... might get ugly, might not.</p><p></p><p>If I have time I will try it, just for kicks, but it's not something I would ever do normally.</p></blockquote><p></p>
[QUOTE="Bennett Prescott, post: 31958, member: 4"] Re: Colt's Neck High School Graduation Evan, I already put in a 3dB boost at 30Hz to try and get the sub to sound a little "bigger". Look at that rolloff. A 6dB boost at 20Hz wouldn't do shit, you'd need more like 15dB to make it to 20Hz. That's totally unrealistic, IMHO. I don't have an impedance meter so I don't know what the tuning frequency of the box is or the resonant frequency of the drivers, but it is just totally done below 30. Maybe if it had a 2nd order acoustic rolloff it could be equalized to get another 1/3 octave LF extension a la Bag End, but that is 4th order easy, maybe 6th order rolloff. Who knows how the box would behave with a big boost down there, as well... might get ugly, might not. If I have time I will try it, just for kicks, but it's not something I would ever do normally. [/QUOTE]
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McCauley M421 Quad 21" Subwoofer
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