What size subwoofer - diyAudio
Go Back   Home > Forums > Loudspeakers > Full Range

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 28th March 2013, 01:00 AM   #1
diyAudio Member
 
tenderland's Avatar
 
Join Date: Jul 2004
Location: us
Default What size subwoofer

Hello ,

I just completed a nice pair of bookshelf speakers
Using a pair of Fostex fe103en drivers. I next need to design
A subwoofer using a plate amp but I'm conflicted
About the size of the driver. A 8 inch or a 6.5
Anyone have expirience with this arrangement ?

Thanks
J
__________________
"If every one is making wheels , why make wheels ? " Steve Jobs
  Reply With Quote
Old 28th March 2013, 01:18 AM   #2
sreten is offline sreten  United Kingdom
diyAudio Member
 
Join Date: Nov 2003
Location: Brighton UK
Hi,

Volume displacement matters more than size,
but here just go for a good 8", much easier to
find a good one than a very high Xmax 6.5".

rgds, sreten.
__________________
There is nothing so practical as a really good theory - Ludwig Boltzmann
When your only tool is a hammer, every problem looks like a nail - Abraham Maslow
  Reply With Quote
Old 28th March 2013, 01:28 AM   #3
diyAudio Member
 
tenderland's Avatar
 
Join Date: Jul 2004
Location: us
Default Thanks

Sounds like a good idea. Was leaning toward 8 but was afraid
It would overwhelm the other speakers .

Thanks again , very excited a out this project !!
__________________
"If every one is making wheels , why make wheels ? " Steve Jobs
  Reply With Quote
Old 28th March 2013, 06:11 AM   #4
Spec is offline Spec  Australia
diyAudio Member
 
Join Date: Apr 2012
Location: Wollongong, Australia
I just bought an wharfdale achromatic 8" for my CHR-70 shoebox's Suits them well
  Reply With Quote
Old 28th March 2013, 07:36 AM   #5
zman01 is offline zman01  Bangladesh
diyAudio Member
 
Join Date: Feb 2011
Location: Dhaka
For 6.5" you can look into the TB W6-1169. High X-max 6.5", and the ferrite magnet version costs less than the neo magnet one. Works in a fairly compact box (~25 litres) giving you external dimensions of 12" square.
  Reply With Quote
Old 28th March 2013, 10:21 AM   #6
diyAudio Member
 
chris661's Avatar
 
Join Date: Feb 2008
Location: Sheffield
Blog Entries: 8
If the ferrite version is anything like the neodymium version, 25L is huge.

For that driver, make it 15L, tuned ~40Hz.


Some questions for the OP.
1 - how loud do you want to go?
2 - how low do you want to go?
3 - how much space can you allocate for this project?
4 - how much power is available?
5 - how much money is available?
6 - how are your woodworking skills?
7 - (linked to #2) what sort of music do you listen to?
8 - have you tried BSC on your full-range speakers?

Answer these, and we'll be able to recommend something that'll do what you want. No point using a 6"er if you want loud movie effects.

Chris
  Reply With Quote
Old 28th March 2013, 10:30 AM   #7
diyAudio Member
 
Join Date: Mar 2008
Location: Milton Keynes
Depends on the size of your room and if you want to go for a ported or selad box design I would say. Believe it or not 2 Jordan Eikonas in a MLTL design and you don't need a subwoofer at all - good down to 25Hz in a good sized room. Personally I don't think that bass it totally directionless. A musical bass note (other than a pure sinewave) contains a full harmonic structure of higher notes and it is these that locate the sound if you can do it stereophonically and coherently as possible.
__________________
KJW
  Reply With Quote
Old 28th March 2013, 06:15 PM   #8
diyAudio Member
 
tenderland's Avatar
 
Join Date: Jul 2004
Location: us
1) not loud -match the fostex but accurate and some pop
And some good low extension.
2) 30 hz give or take.
3)well something that is inline with the book shelf speakers.
I'd say max size for sub 24"x24" or so
4) 100w plate amp
5) 250 -300 dollars
6) above average
7)classical jazz pop. Folk. Classic roc
k
8) NoI

Thanks Chris

Jeff
__________________
"If every one is making wheels , why make wheels ? " Steve Jobs

Last edited by tenderland; 28th March 2013 at 06:16 PM. Reason: Addition
  Reply With Quote
Old 28th March 2013, 06:39 PM   #9
diyAudio Member
 
chris661's Avatar
 
Join Date: Feb 2008
Location: Sheffield
Blog Entries: 8
Okay, I'd recommend trying baffle step compensation on your current speakers.

Here's some reading.

This should make the speakers sound considerably "warmer".

However, they still won't do bass (which is, I suspect, what you're after here).

An 8-10" subwoofer will probably suit you fine.

Something like this: Dayton Audio RSS210HF-4 8" Reference HF Subwoofer 4 Ohm 295-456

Now, what cabinet?

You'll need to add that driver's Thiele-Small Parameters, but then you're off. Download WinISD Pro.

HTH

Chris
  Reply With Quote
Old 28th March 2013, 07:02 PM   #10
diyAudio Member
 
tenderland's Avatar
 
Join Date: Jul 2004
Location: us
Default Thanks

Thanks Chris - I'm going to ivesrigatw tonigh
I have winsd . Can't wait .I'd like to post a pic of the speakers later .
__________________
"If every one is making wheels , why make wheels ? " Steve Jobs
  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
Size of a subwoofer enclosure - too big? Cyberzim Construction Tips 3 4th April 2011 05:49 PM
full range box size when using a subwoofer pforeman Full Range 27 22nd March 2009 10:27 AM
MDF size for subwoofer Buzzy Subwoofers 1 17th May 2008 07:50 PM
WTB: descent quality subwoofer(s) any size Jimmy154 Swap Meet 3 25th June 2005 06:17 PM


New To Site? Need Help?

All times are GMT. The time now is 06:00 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