One room and two inverted subwoofers?

rvrazvan · 23rd August 2011, 12:33 AM

I have noticed that i don't enjoy to have a LF driver placed in a corner in any form. There is just to much boom and my years are not really enjoying that. Open baffles are said to ...not load the room, wich from what i have noticed and from others opinion also is more pleasing to the year.
Having two identical subs, one conected in reverse, will produce the same pleasing effect as an open baffle right? Or am i wrong....

Anyway placement will be problematic..

boris81 · 23rd August 2011, 01:18 AM

2 back-to-back subs in opposite polarity will work as a dipole. The problem is that this arrangement represents a waste of resources. 2 woofers on an open baffle will give much more output than 2 back-to-back boxed subs.

EQ + time delay should be a good way to integrate corner subs. It might be beneficial to have the subwoofer as close to the corner as possible. I would have the sub in the corner with the woofer cone facing the wall, with about an inch clearance.

chris661 · 23rd August 2011, 08:23 AM

Corner loading will depend on the frequency response of the subwoofer anyway - if there are any peaks, they're likely to show.

Best bet would (I expect) would be to add some equalisation, as dipole LF is, IMO, a waste of drivers. Sure, it can be done, and can sound good. But when the speakers had a pair of 18" drivers and a 15" driver per side and could be (easily) matched in volume by a pair of ported 12"s, I know which I'd rather take.

rvrazvan · 23rd August 2011, 10:36 AM

So ...all the boomines that i don't like might come from bad freqency response(when corner loading a sub) ?

chris661 · 23rd August 2011, 11:54 AM

That would be my guess, yeah.

Which subwoofer is it that you're using?

pcb121055 · 23rd August 2011, 12:18 PM

corner loading a subwoofer in my livingroom excites the room's boom modes. one pitch really dominates. if i equalize, i get the right amount of bass but it still has that boomy character. i don't like it. the trick that everyone puts out there is to place the sub where you sit and crawl about the room in search of a place where the bass sounds the way you want it to. i used an rta. when you find a place where the bass sounds good to you (might be more than one), put your sub there. this sub placement will link to your listening location properly. just finished doing this and it was a big improvement in my system.

OllBoll · 23rd August 2011, 01:27 PM

DP_woofer_room

This might help =)

ßart West-VL. · 23rd August 2011, 04:58 PM

Quote:

Originally Posted by pcb121055

...the trick that everyone puts out there is to place the sub where you sit and crawl about the room in search of a place where the bass sounds the way you want it to. i used an rta. when you find a place where the bass sounds good to you (might be more than one), put your sub there. this sub placement will link to your listening location properly...

+1
I did this too and like it a lot, didn't take that much time either.

rvrazvan · 24th August 2011, 12:43 PM

Quote:

Originally Posted by OllBoll

DP_woofer_room

This might help =)

this is what i was thinking! thanks

rvrazvan · 24th August 2011, 12:44 PM

BDW...does anyone here have two subs to try the configuration in the above link?

23rd August 2011, 12:33 AM	#1
rvrazvan diyAudio Member Join Date: Jul 2010	One room and two inverted subwoofers? I have noticed that i don't enjoy to have a LF driver placed in a corner in any form. There is just to much boom and my years are not really enjoying that. Open baffles are said to ...not load the room, wich from what i have noticed and from others opinion also is more pleasing to the year. Having two identical subs, one conected in reverse, will produce the same pleasing effect as an open baffle right? Or am i wrong.... Anyway placement will be problematic..

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23rd August 2011, 01:18 AM	#2
boris81 diyAudio Member Join Date: Oct 2009 Location: white plains, ny	2 back-to-back subs in opposite polarity will work as a dipole. The problem is that this arrangement represents a waste of resources. 2 woofers on an open baffle will give much more output than 2 back-to-back boxed subs. EQ + time delay should be a good way to integrate corner subs. It might be beneficial to have the subwoofer as close to the corner as possible. I would have the sub in the corner with the woofer cone facing the wall, with about an inch clearance.

23rd August 2011, 08:23 AM	#3
chris661 diyAudio Member Join Date: Feb 2008 Location: Sheffield Blog Entries: 8	Corner loading will depend on the frequency response of the subwoofer anyway - if there are any peaks, they're likely to show. Best bet would (I expect) would be to add some equalisation, as dipole LF is, IMO, a waste of drivers. Sure, it can be done, and can sound good. But when the speakers had a pair of 18" drivers and a 15" driver per side and could be (easily) matched in volume by a pair of ported 12"s, I know which I'd rather take.

23rd August 2011, 10:36 AM	#4
rvrazvan diyAudio Member Join Date: Jul 2010	So ...all the boomines that i don't like might come from bad freqency response(when corner loading a sub) ?

23rd August 2011, 11:54 AM	#5
chris661 diyAudio Member Join Date: Feb 2008 Location: Sheffield Blog Entries: 8	That would be my guess, yeah. Which subwoofer is it that you're using?

23rd August 2011, 12:18 PM	#6
pcb121055 diyAudio Member Join Date: Sep 2008	corner loading a subwoofer in my livingroom excites the room's boom modes. one pitch really dominates. if i equalize, i get the right amount of bass but it still has that boomy character. i don't like it. the trick that everyone puts out there is to place the sub where you sit and crawl about the room in search of a place where the bass sounds the way you want it to. i used an rta. when you find a place where the bass sounds good to you (might be more than one), put your sub there. this sub placement will link to your listening location properly. just finished doing this and it was a big improvement in my system.

23rd August 2011, 01:27 PM	#7
OllBoll diyAudio Member Join Date: Nov 2010	DP_woofer_room This might help =)

24th August 2011, 12:44 PM	#10
rvrazvan diyAudio Member Join Date: Jul 2010	BDW...does anyone here have two subs to try the configuration in the above link?