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Ripole sub design?
Ripole sub design?
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Old 13th January 2012, 02:50 PM   #1
mpa is offline mpa  United Kingdom
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Default Ripole sub design?

Hi everyone,
I have 4x B&C 15BG100 drivers http://http://www.bcspeakers.com/product.php?id=185

Currently in reflex boxes but have recently been experimenting with dipole mids and am very impressed with the results so am thinking 2x15" ripole subs (as cabinet size is so much smaller) but can only find a small amount of info on designing these..
So far all I know is: Area of front chamber opening should be 1/4-1/3 driver SD and rear chamber 1/2-1x SD..
Most of the 15BG100 specs look to be suitable (from what I can tell) except that Mms may be too high...?
So are there any experts on here who could point me in the right direction please?
I don't want to build them if the drivers are totally wrong for this type of cabinet..
Any help much appreciated!
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Old 13th January 2012, 03:44 PM   #2
Calvin is offline Calvin  Germany
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Location: close to Basel

on first inspection, the parameters look ok for a Ripole.

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Old 13th January 2012, 07:08 PM   #3
pacificblue is offline pacificblue  Germany
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If you've always done it like that, then it's probably wrong. (Henry Ford)
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Old 28th December 2012, 03:41 PM   #4
Face is offline Face  United States
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Did you ever build this?
"He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche
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Old 29th December 2012, 12:19 PM   #5
mpa is offline mpa  United Kingdom
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Yes I did and am very pleased with the results! Very nice detailed bass and response down to 35Hz in my room with no EQ required.(25Hz possible with EQ ) Measured response was much smoother than any monopole that I've had in that room. I had a huge problem at 40Hz with monopoles but these almost cured that completely! Only useable upto around 150Hz max as there's a massive cavity resonance at just over 200Hz though..
I would recommend giving ripoles a go as they're easy to build and you might be surprised by the results! It's not the kind of bass to shake the house but I've never heard such natural sounding bass..
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