RE: I concur (changing low pass setting)

Posted by Presto (A) on July 5, 2012 at 12:40:25

In Reply to: RE: I concur (changing low pass setting) posted by John Elison on July 5, 2012 at 09:45:52:

HA! Someone said it. Visual cues due to the sub location... Excellent point! Maybe this is why some like two subs in symmetrically opposing sides of a room? :)

I still think shallow slopes/too high a point (or both) are the biggest offenders.... Mismatching sub crossover point with a speakers natural rolloff point is another source of potential integration grief. 90% of the time when I've been asked to come help out, the sub is set 20 hertz too high. Sometimes an entire octave too high. I can't see why people cross in subs over 100hz with floorstanders that go down to 50 or lower. But they do. Perhaps it's because they believe a sub will "add more bass" which it really does not do. It's supposed to add sub bass and when you crank up the Fc point to get sub bass plus BASS bass, you get severe localization effects.

Perhaps some guys don't need a sub at all, but rather an equalizer to get the "bass" they truly desire. Or just different main speakers in the first place. You can't fix the "bass" of a speaker by adding a sub - you can only add the missing subsonic frequencies. The only way to add sub AND bass is to position the subs directly beneath a standmount speaker and turn a 2-way into a 3-way. Then you can cross over as high as is practical given the drive unit sizes and spacing, as high as 200 or even 300Hz. But no longer is this "adding a sub", but instead, adding a wide range woofer to a 2-way standmount. It becomes a semantics issue at that point.

This is why I've never liked side-firing speaker designs that cross over into the 150-200Hz range to small midbass drivers.

In any case, I think the above explains where MOST guys go wrong.

Cheers,
Presto

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Follow Ups Full Thread

Topic - Subwoofer placement suggestion given restrictions (kenster) - Charlie8521 13:14:28 07/04/12 (22)

RE: Subwoofer placement suggestion given restrictions (kenster) - Vic D 22:02:18 07/06/12 (1)

RE: Subwoofer placement suggestion given restrictions (kenster) - Charlie8521 06:35:00 07/07/12 (0)

RE: Subwoofer placement suggestion given restrictions (kenster) - Frommerstop 22:22:07 07/05/12 (5)

RE: Subwoofer placement suggestion given restrictions (kenster) - Charlie8521 06:02:29 07/06/12 (3)

RE: Subwoofer placement suggestion given restrictions (kenster) - Frommerstop 09:31:03 07/06/12 (2)

ARE YOU CRAZY!!! - Charlie8521 10:09:11 07/06/12 (1)

RE: ARE YOU CRAZY!!! - Frommerstop 18:36:19 07/06/12 (0)

Good point! - John Elison 22:45:15 07/05/12 (0)

RE: Subwoofer placement suggestion given restrictions (kenster) - Presto 13:35:11 07/04/12 (13)

RE: Subwoofer placement suggestion given restrictions (kenster) - Charlie8521 16:09:20 07/04/12 (12)

RE: Subwoofer placement suggestion given restrictions (kenster) - Kal Rubinson 17:15:33 07/04/12 (11)

I concur - 3db 04:33:35 07/05/12 (10)

RE: I concur - Charlie8521 06:21:43 07/05/12 (9)

RE: I concur - 3db 04:48:45 07/06/12 (0)

RE: I concur - kenster 07:14:19 07/05/12 (7)

RE: I concur (changing low pass setting) - Charlie8521 08:02:28 07/05/12 (6)

RE: I concur (changing low pass setting) - John Elison 09:45:52 07/05/12 (5)

RE: I concur (changing low pass setting) - Presto 12:40:25 07/05/12 (0)

RE: I concur (55Hz?) - Charlie8521 12:38:00 07/05/12 (3)

RE: I concur (55Hz?) - Inmate51 13:18:11 07/07/12 (0)

RE: I concur (55Hz?) - Presto 12:48:45 07/05/12 (1)

RE: I concur (6.5 woofer, 45Hz) - Charlie8521 17:54:14 07/05/12 (0)

Follow Ups

RE: I concur (changing low pass setting) - Presto 12:40:25 07/05/12 (0)

RE: I concur (changing low pass setting)

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