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Old 14th August 2005, 10:44 PM   #1
regal is offline regal  United States
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Default Highest sub xover point for music

I am building as pair of fullrange speaers, I want to limit as much bass to them as possible.

If I built two subs (one under each speaker) and fed them a mono signal how high can I go with the crossover.

If I was sending a stereo signal I am sure I could go as high as the subs will play but with a mono signal I am unsure.
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Old 15th August 2005, 01:52 AM   #2
Mark Kravchenko --- www.kravchenko-audio.com
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Default Could you please state ehat you want to do!

I'm a little confused as to what you want to do. Are you asking how high up in frequency a sub can play before you can hear where it is coming from?

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Old 15th August 2005, 01:53 AM   #3
cowanrg is offline cowanrg  United States
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mwmkravchenko,

i think thats exactly what he's asking.

ive heard that around 100hz - 120hz is where it starts being directional.
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Old 15th August 2005, 02:09 AM   #4
Mark Kravchenko --- www.kravchenko-audio.com
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Default If you think about it...

I would say around 80 hz for this reason.

If that is your X-over point it is the beginning of the decline in the high end of the sub-woofer. It will only be attenuated by the slope that you have provided. Typically the slope is 2nd ordr or 12 db/octave. That means that at 160 hz it will be roughly half as loud as at the X-over point, and at 320 hz it will be 1/4 as loud. Ideally you would want a fourth order slope or 24 db/ octave . That would put it 1/4 as loud at 160 hz. This is enough to be an effective low end to high end crossover.

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