Fordmods Logo

difference between ported sub box and non ported sub box? 

 

Page 1 of 1 [ 6 posts ] 

 
 Post subject: difference between ported sub box and non ported sub box?
Posted: Fri Nov 26, 2010 10:08 am 
Stock as a Rock
Offline

Age: 26

Posts: 194

Joined: 21st Jan 2010

Gallery: 12 images

Ride: ford falcon ef futura

Location: adelaide
SA, Australia

hey guys wondering if there is ny difference between the two boxes? any more bass with either?

cheers anthony
Top
 Profile  
 
 
 Post subject: Re: difference between ported sub box and non ported sub box?
Posted: Fri Nov 26, 2010 10:43 am 
Fordmods Junkie
Offline
User avatar

Posts: 11739

Joined: 17th May 2005

Gallery: 11 images

Ride: EL Fairmont, VFR400 racer

Power: 144 rwkw

Location: Melbourne
VIC, Australia

From what I remember, ported boxes allow the sub to hit lower frequencies. However if not done properly it will sound ugly and not very clear and may harm the sub. It also takes up a lot of room since the volume of the ported box is usually bigger. The sub will also flex more and require more power to produce the same amount of loudness/punchiness (due to the cone flex).

Non-ported can give you louder bass. The box is also close to half the size of a ported and uses less power to do the same amount of loudness. Cone doesn't flex as much since pressure is contained in the box, which also gives you much better kick/punch type bass (think doof doof music).

I am sure ported is good for RnB/Hip Hop low 808 type bass, where as non ported used for music with more quicker punchy bass such as Trance/Techno or even Rock/Metal type.

Either way...a non ported enclosure is much easier to build and tune to than a ported box since the port hole/length/dimension need to be calculated well for good quality bass.

I may be wrong so don't quote me on that...it may actually be the total opposite.

 

_________________

phongus = Post whore 2006
EL XR6 motor, EL ECU + J3 chip, WADE 1673 Camshaft, 3" S/S intake, Pacy 4480, 2.5" Hi flow cat, 2.5" Lukey exhaust.
Max Power = 144.6 rwkw (03/05/2008)

Top
 Profile  
 
 
 Post subject: Re: difference between ported sub box and non ported sub box?
Posted: Fri Nov 26, 2010 2:10 pm 
Tyre Shredder
Offline

Age: 37

Posts: 383

Joined: 11th Aug 2006

Ride: 6.0L VE Calais-V

Location: Hastings
VIC, Australia

Top
 Profile  
 
 
 Post subject: Re: difference between ported sub box and non ported sub box?
Posted: Fri Nov 26, 2010 4:37 pm 
Parts Gopher
Offline
User avatar

Age: 27

Posts: 98

Joined: 30th Nov 2007

Gallery: 6 images

Ride: 06 BF XR6

Location: Portland
VIC, Australia

SPL use ported
SQ use sealed (non-ported)

 

_________________

Current car 2011 FG XR6 Ute Limited Edition

Past cars:06 BF XR6
97 EL

Top
 Profile  
 
 
 Post subject: Re: difference between ported sub box and non ported sub box?
Posted: Sat Nov 27, 2010 9:05 am 
Tyre Shredder
Offline

Age: 37

Posts: 383

Joined: 11th Aug 2006

Ride: 6.0L VE Calais-V

Location: Hastings
VIC, Australia

GetToTheGone wrote:
SPL use ported
SQ use sealed (non-ported)

Ported can give nicer sound quality than sealed in some cases.

But generally, if buying prefab or using a dodgy designed box, ported will be louder and sealed will sound nicer.
Top
 Profile  
 
 
 Post subject: Re: difference between ported sub box and non ported sub box?
Posted: Sat Nov 27, 2010 9:21 pm 
Getting Side Ways
Offline
User avatar

Posts: 6432

Joined: 5th Nov 2004

Gallery: 6 images

IIRC from class lectures many years ago, a reflex ported speaker basically sends out your sound waves in both directions from the speaker itself. The sound wave emanating from the back of the speaker is 180° out of phase with the sound wave coming out the front of the speaker. That rear sound wave hits the back of the box enclosure which causes it to invert 180° so that it is now emanating forward through the port, in phase with the sound wave coming out of the front of the speaker, which basically reinforces the audio strength overall.

 

_________________

5.6L of carbon footprint.

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 6 posts ] 

Who is online

Users browsing this forum: No registered users and 6 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Fri Dec 15, 2017 4:15 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names