Toggle navigation
AVS Discussions
Home
Forum
Help
Search
Gallery
Search
Stats
Login
Register
Login
Register
×
Close
Login
Remember me
Forgot your password?
AVS Discussions
Audio
Speakers
Dual Sub positioning in a 16'w x 18'd room?
1
Print
Dual Sub positioning in a 16'w x 18'd room?
8 Replies
3555 Views
Don
3
Dual Sub positioning in a 16'w x 18'd room?
«
on:
November 07, 2016, 05:24:55 PM »
While I know the bass isn't directional and can pretty much go anywhere, but what is the best layout for 2 subs? I can put one on either side of my screen or one on the left corner of the room and the other on the left wall, even with the projector depth, 13'6". I guess I can even put them side by side in the left corner. What makes best sense??
Logged
AVSMike
1985
Re: Dual Sub positioning in a 16'w x 18'd room?
«
Reply #1 on:
November 08, 2016, 01:14:36 PM »
I would probably try both locations and measure. Placing a sub in the corner will give you increased output. Where is your seating located in your 16' x 18' theater?
Logged
My Baffle Wall System:
https://discuss.avscience.com/index.php?topic=124.msg902#msg902
Mike Garrett
AV Science Sales
585-671-2968
mike@avscience.com
JVC, Sony, Epson, Marantz, Denon, Yamaha, Stewart, Seymour, Screen Innovations, Screen Excellence, DNP, Da-Lite, Triad, SVS, Martin Logan & more.
Ron Jones
32
Re: Dual Sub positioning in a 16'w x 18'd room?
«
Reply #2 on:
November 09, 2016, 08:23:22 PM »
With a single sub you will typically get some peaks and nulls in the bass sound level at different points within the room, i.e., where the reflected sound either reinforces or cancels the direct sound. With two subs that are well placed you should be able to get more uniform bass sound levels throughout the room, assuming the subs are positioned such that the locations of the peaks and nulls are at different positions for each sub individually. The optimum locations for the two subs will vary some from room to room.
«
Last Edit: November 09, 2016, 08:30:38 PM by Ron Jones
»
Logged
Ron Jones
Reviewer/Writer/Blogger for Projector Reviews
http://www.projectorreviews.com
laugsbach
23
Die Young as Old as You Can
Re: Dual Sub positioning in a 16'w x 18'd room?
«
Reply #3 on:
November 10, 2016, 04:20:34 PM »
When I had just two subs, I went for a near field placement and used them as side tables for our sofa. In my 15' x 20' room, this was the best for impact...having one sub along the front wall and the other sub mid side wall gave me the smoothest FR. Measuring your FR is very important for dialing in the subs to the rest of your system...
Logged
bmoney
2576
Re: Dual Sub positioning in a 16'w x 18'd room?
«
Reply #4 on:
November 13, 2016, 08:41:45 AM »
one up front one in the back usually is the best...but you wont know until you measure...otherwise your flying blind
Logged
SadieMax 2,0 Build thread
Nad t758v3
7.4.4 diysoundgroup 1099's (3)
Volt 6 (8 )
18" SI subs (4)
diy 130" 2.40 spandex screen
minidsp 2x4HD
JVC rs600
Lumagen radiance pro 4242
Nvidia shield pro
Emby NAS media player
NBPk402
543
Living the retired life
Re: Dual Sub positioning in a 16'w x 18'd room?
«
Reply #5 on:
November 13, 2016, 10:08:38 PM »
We went with one in the front and one in the rear, but in our room, we ended up with a bass null in the front row. If I can find a 2nd pair of DTS-10s, and get the cash I will put one on each side wall too, if not I will move the speakers when I decide to redo the room.
Logged
Marantz av8805a, 3 K402MEHs, 4 Klipsch RP150Ms, MINIDSP DDRC88M, 1 7 channel woofer amp & heights, 3 Icepower amps, Denafrips Athena & Pontus ii, Lumin U1 mini, 2 Yamaha P2500s, Monoprice speaker wire, and XLR cables, 2 Furman filters, ProJect RPM 1.3 Carbon Turntable, Zappiti Reference, Panasonic ub820, LG 86"" 4k fp
bmoney
2576
Re: Dual Sub positioning in a 16'w x 18'd room?
«
Reply #6 on:
November 14, 2016, 07:54:57 AM »
in my first theater I was lucky...both subs up front gave me a flat response
Logged
SadieMax 2,0 Build thread
Nad t758v3
7.4.4 diysoundgroup 1099's (3)
Volt 6 (8 )
18" SI subs (4)
diy 130" 2.40 spandex screen
minidsp 2x4HD
JVC rs600
Lumagen radiance pro 4242
Nvidia shield pro
Emby NAS media player
ronman79
72
Re: Dual Sub positioning in a 16'w x 18'd room?
«
Reply #7 on:
November 22, 2016, 04:53:30 PM »
In a previous setup, I had (4) 12" subs at around 1/4 wall placement. I'm curious as to what other say here, as well. I'm doing first home theater, and will be using the same 4 subs....
Logged
DonH58
5
Re: Dual Sub positioning in a 16'w x 18'd room?
«
Reply #8 on:
December 27, 2017, 12:32:39 PM »
Well, old thread, new poster here... And a disclaimer: subwooferage is not my day job.
There is a Harman white paper that explains it pretty well, and of course many other books by folk like Toole, Geddes, and Everest that address placement issues. To provide the best in-room placement it is usually best to place the subs mid-wall or in opposite corners or some combination so they do not excite the same room modes in the same way. That provides flatter overall frequency response and helps compensate room modes leading to nulls.
Note there is a null in the center of the room so that is generally a poor place for the MLP (main listening position) acoustically even though it is all too often the best position aesthetically.
https://www.harman.com/sites/default/files/multsubs_0.pdf
HTH - Don
«
Last Edit: December 27, 2017, 12:37:55 PM by DonH58
»
Logged
"After silence, that which best expresses the inexpressible, is music." - Aldous Huxley
1
Print
AVS Discussions
Audio
Speakers
Dual Sub positioning in a 16'w x 18'd room?
SimplePortal 2.3.7 © 2008-2024, SimplePortal