Can i get some help please! - Page 2 - 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 27th February 2014, 11:29 AM   #11
masliko is offline masliko  Australia
diyAudio Member
 
Join Date: Nov 2012
Location: Australia
Quote:
Originally Posted by masliko View Post

thanks for the help.
  Reply With Quote
Old 27th February 2014, 11:45 PM   #12
GM is online now GM  United States
diyAudio Member
 
GM's Avatar
 
Join Date: Jun 2003
Location: Chamblee, Ga.
You're welcome! Hmm, one doesn’t normally think of a TL as having a ‘punchy sound’, but more a high SQ sound [extremely well damped], though one could EQ it to suit, so looking forward to how this works out for you.

What is its design details?

GM
__________________
Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.
  Reply With Quote
Old 28th February 2014, 12:59 AM   #13
masliko is offline masliko  Australia
diyAudio Member
 
Join Date: Nov 2012
Location: Australia
Quote:
Originally Posted by GM View Post
You're welcome! Hmm, one doesn’t normally think of a TL as having a ‘punchy sound’, but more a high SQ sound [extremely well damped], though one could EQ it to suit, so looking forward to how this works out for you.

What is its design details?

GM
Hi again,basically the Tl is not happening now because the size of panels wouldn't fit into the sheets i bought


So i"m looking at a fourth order now,or going with the sealed box.I'm looking into designs now.


Do you think that this sub box would work with my sub?
http://www.youtube.com/watch?v=9QdAz...ature=youtu.be

What do you think of a single band pass?

Thanks for the help GM!

Last edited by masliko; 28th February 2014 at 01:03 AM.
  Reply With Quote
Old 28th February 2014, 05:20 AM   #14
GM is online now GM  United States
diyAudio Member
 
GM's Avatar
 
Join Date: Jun 2003
Location: Chamblee, Ga.
No, much too small with a ‘one note’ ~5.5 dB peak at ~44.8 Hz and stuffing it all just converts it to ~ a sealed cab response.

‘Single’ band pass? Do you mean 4th order BP? The vent required will ideally need to be a large PR.

GM
__________________
Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.
  Reply With Quote
Old 28th February 2014, 12:30 PM   #15
masliko is offline masliko  Australia
diyAudio Member
 
Join Date: Nov 2012
Location: Australia
Quote:
Originally Posted by GM View Post
No, much too small with a ‘one note’ ~5.5 dB peak at ~44.8 Hz and stuffing it all just converts it to ~ a sealed cab response.

‘Single’ band pass? Do you mean 4th order BP? The vent required will ideally need to be a large PR.

GM
yeah,what do you mean PR?
  Reply With Quote
Old 28th February 2014, 01:30 PM   #16
diyAudio Member
 
Greebster's Avatar
 
Join Date: Aug 2010
Location: South of the Skyway
PR = Passive Radiator
  Reply With Quote
Old 28th February 2014, 01:41 PM   #17
GM is online now GM  United States
diyAudio Member
 
GM's Avatar
 
Join Date: Jun 2003
Location: Chamblee, Ga.
Passive Radiator...... the vent needs to be so long to have a low power compression that it will have audible pipe organ harmonics 'singing' along to 'color' its response, so a large, high excursion 'driver' is required and ideally two should be used in a bipolar layout to ~cancel out their high excursion vibration modes.

GM
__________________
Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.
  Reply With Quote
Old 1st March 2014, 01:39 AM   #18
diyAudio Member
 
Join Date: Feb 2004
Location: Los Angeles
hey Down Under!

Reading what you posted, I don't think you should make a band pass. It will most likely sound boomy, as that is the nature of band pass.

Sealed is generally a safe bet, especially for higher Q drivers.

Ported can still work but you need a big cabinet tuned very low meaning big and long ports or a shelf port. without calculating, I don't think that really fits your 20" cube.
  Reply With Quote
Old 1st March 2014, 05:06 AM   #19
diyAudio Member
 
Inductor's Avatar
 
Join Date: Feb 2006
Location: Cascais
Default Dayton Audio RSS315HFA-8 12"

The 4th order bandpass will give you essentially more output in the sub LF <50Hz region (40Hz 30Hz and 20's Hz).
For that you will need to build an enclosure that will be V1 = 36.5 L and V2 = 24.5 L with a total (net) of 61 L + port dimensions.
61L = 2.15ft³
Attached Images
File Type: jpg SUBS DAYTON RSS315HFA-8 is a 4th order bandpass.jpg (140.1 KB, 15 views)
  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



New To Site? Need Help?

All times are GMT. The time now is 11:31 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