18 inch sub placement cunundrum - diyAudio
Go Back   Home > Forums > Loudspeakers > Subwoofers

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 14th July 2010, 01:44 PM   #1
diyAudio Member
 
Join Date: Jun 2008
Default 18 inch sub placement cunundrum

Hello i have 2 18 inch subs. I am a DJ so i know how to set everything up and cable it all. My question is for home use ( when im not at an event) would the best placement of the subs be stacked and in a corner. more to the middle of the room. or in the doorway to an adjoining 100 square ft room. my main listening room is about 13 ftwide by about 30 feet long or approximately 400 sq feet, also for a room of this size what would be an appropriate approximate XO setting (upper and lower cutoffs).
thanks in advance
DJ Sprocket
__________________
Bigger the better... unless you like peace and quiet...
But we can fix that too.
  Reply With Quote
Old 14th July 2010, 02:26 PM   #2
diyAudio Member
 
BobEllis's Avatar
 
Join Date: Sep 2003
Location: Upstate NY
Dig out the Harmon white paper on multiple subs. The goal of the paper is to make the sweet spot as big as possible. You'll want to experiment a bit, but a good starting point would probably be along the midpoints of opposite walls.

Crossover as low as your mains can handle at your target max SPL to make it less likely you will be able to localize the subs.
  Reply With Quote
Old 14th July 2010, 02:29 PM   #3
diyAudio Member
 
Join Date: Jun 2008
its not going to be multiple subs as in in 2 different places rather stacked so as to essentially become one sub. each area that the subs could be would all be in a stacked configuration.
__________________
Bigger the better... unless you like peace and quiet...
But we can fix that too.
  Reply With Quote
Old 14th July 2010, 02:44 PM   #4
diyAudio Member
 
BobEllis's Avatar
 
Join Date: Sep 2003
Location: Upstate NY
There are several room mode calculators such as the FRD tools one that will allow you to see what modes you will excite with various placements and choose the one that suits you.

A stack of 18" subs anywhere other than the corner will be visually imposing, and have ultra-low SAF. With separate placement you can probably get smoother overall response.
  Reply With Quote
Old 14th July 2010, 02:46 PM   #5
diyAudio Member
 
Join Date: Jun 2008
i dont care about visual impositions as this system is only at home for a few days at a time then its disconnected and taken to a gig then back home again. as far as what SAF is if you could explain it please.
__________________
Bigger the better... unless you like peace and quiet...
But we can fix that too.
  Reply With Quote
Old 14th July 2010, 02:47 PM   #6
diyAudio Member
 
BobEllis's Avatar
 
Join Date: Sep 2003
Location: Upstate NY
Spouse Acceptance Factor (an issue for some)
  Reply With Quote
Old 14th July 2010, 02:54 PM   #7
diyAudio Member
 
Join Date: Jun 2008
no Issues with SAF of WAF more like DAF (Dad acceptance factor) but as its my part of the house and also my equipment which is here again gone again quite a bit i dont have to worry about that either
__________________
Bigger the better... unless you like peace and quiet...
But we can fix that too.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Hartley 18 Inch Subwoofer For Sale thetubeguy1954 Swap Meet 10 22nd April 2009 12:47 PM
18 inch Pro Driver Ricky Multi-Way 0 21st July 2007 03:11 PM
Wanted 18 inch Drivers- In India sonu Multi-Way 0 9th January 2005 12:35 PM
North Leviathan 18-inch SW driver Val Multi-Way 4 26th August 2002 05:42 AM


New To Site? Need Help?

All times are GMT. The time now is 04:57 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2