Is it reasonable to have a sub go from 20 to 120hz? - diyAudio
Go Back   Home > Forums > Loudspeakers > Subwoofers
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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
Thread Tools Search this Thread
Old 15th September 2006, 07:44 PM   #1
bluegti is offline bluegti  United States
diyAudio Member
Join Date: Nov 2004
Location: Northern Virginia
Default Is it reasonable to have a sub go from 20 to 120hz?

I'm trying to plan out a system for my home theater - really more of a 11x14 foot media room. I built 3 full range monitors (my first project) that extend to 100hz at the lowest. I would like to fill in the bass with two subwoofers but am not sure about how high I can expect a subwoofer to go. Would 100-120hz be reasonable?

Next, I'm trying to figure out what type of enclosure to use. I am thinking I might like to build something that is sort of a speaker stand/subwoofer in one - not unlike the Von Schweikert VR4 Jr.

A shove in the right direction is appreciated.
  Reply With Quote
Old 15th September 2006, 08:08 PM   #2
badman is offline badman  United States
Custom Title
diyAudio Member
badman's Avatar
Join Date: Sep 2003
Location: Sunny Tustin, SoCal
If you put the sub near the satellite, or use it as a stand, you can run the sub as high as you want (front-firing sub please)- so long as it still sounds good.
"The dawn of Bose created the "Man Cave" and reduced testoterone levels worldwide by 18.5 per cent" Peteleoni
  Reply With Quote
Old 15th September 2006, 08:08 PM   #3
tool49 is offline tool49  Canada
diyAudio Member
tool49's Avatar
Join Date: Apr 2003
Location: Montreal
As far as I'm concerned, your sub can go as high as you want it. All you need to do is make sure the drivers you chose are appropriate for the job you appoint them. Now for sure going all the way up to 100hz is not going to be easily achieved by a heavy 21" woofer but I see no problem with an 8" or 10". Then you end up loosing on the bottom end on things. Going down to 20Hz flat from 100Hz might be a stretch, but if you account room gain it should be easily achieveable. A bit of equing might just very well do the trick (i.e. Linkwitz transform)

Hope this helps!
  Reply With Quote
Old 15th September 2006, 09:23 PM   #4
diyAudio Member
HipoFutura's Avatar
Join Date: Jun 2006
You're OK at 100hz, but a tad on the high side. It will depend upon your driver and cabinet design. You're going to need quite a large enclosure in order to get 20hz without a huge db drop. What driver are you using? Is cabinet size an issue?
  Reply With Quote
Old 15th September 2006, 10:44 PM   #5
owdi is offline owdi  United States
diyAudio Member
owdi's Avatar
Join Date: Sep 2003
Location: Bellevue, WA
Since you are using stereo subs, I think 120hz is very reasonable. The Dayton RS series of subwoofers seem to be espeically suitable to higher crossover points. ref

  Reply With Quote
Old 18th September 2006, 01:13 AM   #6
hooha is offline hooha  Canada
diyAudio Member
hooha's Avatar
Join Date: Apr 2005
Location: Winnipeg, Manitoba
Those look like a rip from Wilson's with a superior cabinet finish...

As the others have mentioned, 120Hz should be no problem for a 12". It's not for my MAW-12's which were designed for sound quality...

Breaking speed records -
  Reply With Quote


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
ReVox G36 15ips mod (100/120Hz) Steerpike Analogue Source 0 1st August 2009 01:38 PM
The 120Hz Blues... kff322 Tubes / Valves 2 24th February 2008 06:26 PM
5dB dip at 120Hz in my speakers? cjv998 Full Range 12 21st September 2007 11:10 AM
powering up old amp-120hz at output? portlandlay Solid State 4 11th December 2005 04:36 AM

New To Site? Need Help?

All times are GMT. The time now is 12:51 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2