Register My Garage Arcade V.I.P Members List Calendar Mark Forums Read
Go Back   my6thgen.org - Maxima Forum > my6thgen.org - Very Useful Information > Ask Your Technical & General Questions > Audio, Video & Electronics

Reply
ExclamationThis thread is more than 150+ days old. If you still feel it is necessary to bump this thread, you have the permission to do so. Please click the checkbox below and post your reply.
 
Thread Tools
Old 07-02-2012, 04:17 PM   Thread Starter #1
M Towns Finest
my6thgen.org Profile Info.
 
chris72983's Avatar
 
Join Date: Apr 2012
Official Member #: 5140
Last Online: 03-06-2014 09:18 AM
Location: Tha SIP
Posts: 2,237

Reputation Level: 21
chris72983 will become famous soon enoughchris72983 will become famous soon enough

Participation Level: 0%
Activity: 0% Activity: 0% Activity: 0%
Default Sub Box Design And Port Tuning

I have been looking at the specs needed for the Sundown Audio sa8 v2 that is mentioned in this thread Subs In Spare Tire Well My question is, the spec sheets say that it needs. .5-.75^3@35 hz ported box. I know that the .5-.75 is the internal airspace but don't understand what ^3 @35hz is talking about. Any help will be great. Thanks in advance!
__________________
Click the image to open in full size.
chris72983 is offline   Send a private message to chris72983 Find more posts by chris72983 Add chris72983 to Your Friends list Reply With Quote top
Old 07-02-2012, 04:38 PM   #2
Senior Citizen Moderator
6th Gen Official Pops
my6thgen.org Profile Info.
 
07maximan's Avatar
 
Join Date: Apr 2011
Official Member #: 2184
Last Online: 12-08-2014 03:33 PM
Location: Close....Very Close!!
Posts: 9,421

Reputation Level: 69
07maximan is just really nice07maximan is just really nice07maximan is just really nice07maximan is just really nice07maximan is just really nice

Participation Level: 9%
Activity: 9% Activity: 9% Activity: 9%

My Awards:
Active Member  


/ Point Value: 5

Member of the Month (M.O.T.M)  


/ Point Value: 10

Honorable Ride  


/ Point Value: 5

Most Valuable Poster (MVP)  


/ Point Value: 10

Default Re: Sub Box Design And Port Tuning

I dont know what ^3 is,but the box needs to be tuned at 35 hertz.
__________________

Originally Posted by dstruc View Post
Next week Omar is taking us walking through the projects. Alex is getting raped for sure.
07maximan is offline   Send a private message to 07maximan Find more posts by 07maximan Add 07maximan to Your Friends list Reply With Quote top
Old 07-02-2012, 04:45 PM   Thread Starter #3
M Towns Finest
my6thgen.org Profile Info.
 
chris72983's Avatar
 
Join Date: Apr 2012
Official Member #: 5140
Last Online: 03-06-2014 09:18 AM
Location: Tha SIP
Posts: 2,237

Reputation Level: 21
chris72983 will become famous soon enoughchris72983 will become famous soon enough

Participation Level: 0%
Activity: 0% Activity: 0% Activity: 0%
Default Re: Sub Box Design And Port Tuning

How do you tune the box at 35hz?
__________________
Click the image to open in full size.
chris72983 is offline   Send a private message to chris72983 Find more posts by chris72983 Add chris72983 to Your Friends list Reply With Quote top
Old 07-02-2012, 04:46 PM   #4
Senior Citizen Moderator
6th Gen Official Pops
my6thgen.org Profile Info.
 
07maximan's Avatar
 
Join Date: Apr 2011
Official Member #: 2184
Last Online: 12-08-2014 03:33 PM
Location: Close....Very Close!!
Posts: 9,421

Reputation Level: 69
07maximan is just really nice07maximan is just really nice07maximan is just really nice07maximan is just really nice07maximan is just really nice

Participation Level: 9%
Activity: 9% Activity: 9% Activity: 9%

My Awards:
Active Member  


/ Point Value: 5

Member of the Month (M.O.T.M)  


/ Point Value: 10

Honorable Ride  


/ Point Value: 5

Most Valuable Poster (MVP)  


/ Point Value: 10

Default Re: Sub Box Design And Port Tuning

Originally Posted by chris72983 View Post
How do you tune the box at 35hz?
Just give the specs to your box builder and he'll know what to do.
__________________

Originally Posted by dstruc View Post
Next week Omar is taking us walking through the projects. Alex is getting raped for sure.
07maximan is offline   Send a private message to 07maximan Find more posts by 07maximan Add 07maximan to Your Friends list Reply With Quote top
Old 07-02-2012, 04:49 PM   #5
Official Member
my6thgen.org Profile Info.
 
joecurr's Avatar
 
Join Date: Sep 2010
Official Member #: 626
Last Online: 03-26-2014 08:45 PM
Posts: 454

Reputation Level: 28
joecurr has a spectacular aura aboutjoecurr has a spectacular aura about

Participation Level: 0%
Activity: 0% Activity: 0% Activity: 0%

My Awards:
Honorable Ride  


/ Point Value: 5

Default Re: Sub Box Design And Port Tuning

^3 means cubed, as in cubic feet. You need a specific size port to tune the box to 35hz.

Subwoofer Enclosure Calculators, Fraction to Decimal, Parallel, Series, Port Length and Volume Calculators
__________________
Click the image to open in full size.
Likes: (1)
cbirbig (07-03-2012)
joecurr is offline   Send a private message to joecurr Find more posts by joecurr Add joecurr to Your Friends list Reply With Quote top
Old 07-02-2012, 04:56 PM   #6
Senior Moderator
The Capital's 6th Gen
my6thgen.org Profile Info.
 
officerfrasher's Avatar
 
Join Date: Feb 2011
Official Member #: 1765
Last Online: 06-01-2018 10:32 AM
Location: Frankfort, KY 40601
Posts: 13,375

Reputation Level: 58
officerfrasher has a spectacular aura aboutofficerfrasher has a spectacular aura aboutofficerfrasher has a spectacular aura about

Participation Level: 0%
Activity: 0% Activity: 0% Activity: 0%

My Awards:
Member of the Month (M.O.T.M)  


/ Point Value: 10

Supporting Family Member  


/ Point Value: 10

Official Ride  


/ Point Value: 10

Spotlight Ride Of The Month  


/ Point Value: 5

Default Re: Sub Box Design And Port Tuning

Originally Posted by joecurr View Post
^3 means cubed, as in cubic feet. You need a specific size port to tune the box to 35hz.

Subwoofer Enclosure Calculators, Fraction to Decimal, Parallel, Series, Port Length and Volume Calculators
WOW! That shit is COMPLETELY over my head!
Likes: (1)
Latinmaxima (07-02-2012)
officerfrasher is offline   Send a private message to officerfrasher Find more posts by officerfrasher Add officerfrasher to Your Friends list Reply With Quote top
Old 07-02-2012, 04:58 PM   #7
Official Member
my6thgen.org Profile Info.
 
hero782's Avatar
 
Join Date: Jul 2010
Official Member #: 335
Last Online: 07-05-2018 03:34 PM
Location: Los Angeles
Posts: 1,834

Reputation Level: 22
hero782 will become famous soon enoughhero782 will become famous soon enough

Participation Level: 0%
Activity: 0% Activity: 0% Activity: 0%

My Awards:
Spotlight Ride Of The Month  


/ Point Value: 5

Official Ride  


/ Point Value: 10

Default Re: Sub Box Design And Port Tuning

That's why I just got someone to build a box with the specific cubic feet and hz for my woofers.
hero782 is offline   Send a private message to hero782 Find more posts by hero782 Add hero782 to Your Friends list Reply With Quote top
Old 07-02-2012, 05:04 PM   #8
Senior Citizen Moderator
6th Gen Official Pops
my6thgen.org Profile Info.
 
07maximan's Avatar
 
Join Date: Apr 2011
Official Member #: 2184
Last Online: 12-08-2014 03:33 PM
Location: Close....Very Close!!
Posts: 9,421

Reputation Level: 69
07maximan is just really nice07maximan is just really nice07maximan is just really nice07maximan is just really nice07maximan is just really nice

Participation Level: 9%
Activity: 9% Activity: 9% Activity: 9%

My Awards:
Active Member  


/ Point Value: 5

Member of the Month (M.O.T.M)  


/ Point Value: 10

Honorable Ride  


/ Point Value: 5

Most Valuable Poster (MVP)  


/ Point Value: 10

Default Re: Sub Box Design And Port Tuning

Originally Posted by hero782 View Post
That's why I just got someone to build a box with the specific cubic feet and hz for my woofers.
This is the difference between a nice box and a shitty pre-fab. A custom made box is made to the specs of your woofer, Its designed for maximum SPL and SQ. A prefab box a lot of times can damage subs because the specs arent right. I paid 100.00 for a custom made box. Just make sure not to cut corners on this,it will make a difference.
__________________

Originally Posted by dstruc View Post
Next week Omar is taking us walking through the projects. Alex is getting raped for sure.
Likes: (1)
1hawaii50 (07-02-2012)
07maximan is offline   Send a private message to 07maximan Find more posts by 07maximan Add 07maximan to Your Friends list Reply With Quote top
Old 07-02-2012, 08:05 PM   #9
Senior Moderator

my6thgen.org Profile Info.
 
1hawaii50's Avatar
 
Join Date: Feb 2010
Official Member #: 63
Last Online: 11-03-2014 08:34 PM
Location: Cleveland, Ohio
Posts: 13,276

Reputation Level: 58
1hawaii50 has a spectacular aura about1hawaii50 has a spectacular aura about1hawaii50 has a spectacular aura about

Participation Level: 0%
Activity: 0% Activity: 0% Activity: 0%

My Awards:
Supporting Family Member  


/ Point Value: 10

Member of the Month (M.O.T.M)  


/ Point Value: 10

Most Valuable Poster (MVP)  


/ Point Value: 10

V.I.P Member  


/ Point Value: 15

Spotlight Ride Of The Month  


/ Point Value: 5

Active Member  


/ Point Value: 5

Official Ride  


/ Point Value: 10

Default Re: Sub Box Design And Port Tuning

You guys beat me to it...the box internal volume is measured in cubic feet...that's what the /\3 is...

When you do a ported box, the port has to be "tuned". This is done by using a specific port size and length. Any box builder that knows what he/she is doing will know how to do this.
__________________
1hawaii50 is offline   Send a private message to 1hawaii50 Find more posts by 1hawaii50 Add 1hawaii50 to Your Friends list Reply With Quote top
Old 07-02-2012, 08:34 PM   Thread Starter #10
M Towns Finest
my6thgen.org Profile Info.
 
chris72983's Avatar
 
Join Date: Apr 2012
Official Member #: 5140
Last Online: 03-06-2014 09:18 AM
Location: Tha SIP
Posts: 2,237

Reputation Level: 21
chris72983 will become famous soon enoughchris72983 will become famous soon enough

Participation Level: 0%
Activity: 0% Activity: 0% Activity: 0%
Default Re: Sub Box Design And Port Tuning

Thanks
__________________
Click the image to open in full size.
chris72983 is offline   Send a private message to chris72983 Find more posts by chris72983 Add chris72983 to Your Friends list Reply With Quote top
Old 07-03-2012, 07:46 AM   Thread Starter #11
M Towns Finest
my6thgen.org Profile Info.
 
chris72983's Avatar
 
Join Date: Apr 2012
Official Member #: 5140
Last Online: 03-06-2014 09:18 AM
Location: Tha SIP
Posts: 2,237

Reputation Level: 21
chris72983 will become famous soon enoughchris72983 will become famous soon enough

Participation Level: 0%
Activity: 0% Activity: 0% Activity: 0%
Default Re: Sub Box Design And Port Tuning

I'm still not understand why they wouldnt give you a recommended port size for the box. If you look at JL audio's specs on their 8W7 it give you recommended box and port dementions.
__________________
Click the image to open in full size.
chris72983 is offline   Send a private message to chris72983 Find more posts by chris72983 Add chris72983 to Your Friends list Reply With Quote top
Old 07-03-2012, 10:01 AM   #12
Executive Member
my6thgen.org Profile Info.
 
Latinmaxima's Avatar
 
Join Date: Mar 2011
Official Member #: 1924
Last Online: 05-05-2016 04:32 PM
Location: Richmond, KY
Posts: 5,588

Reputation Level: 24
Latinmaxima is on a distinguished road

Participation Level: 0%
Activity: 0% Activity: 0% Activity: 0%
Visit Latinmaxima's Facebook Visit Latinmaxima's PS3 Profile Visit Latinmaxima's YouTube Visit Latinmaxima's Xbox Gamercard
Default Re: Sub Box Design And Port Tuning

I think because not all boxes will be the same. So the port has have the hertz set custom. Some use ports going in. Some use ports that stick out. It is just the heads up on the frequency I guess.

Posted Via Tapatalk 2
__________________
2004 Nissan Maxima SE<(^_^<)Samsung Galaxy Nexus(>^_^)> Motorola Xoom
Click the image to open in full size.
Latinmaxima is offline   Send a private message to Latinmaxima Find more posts by Latinmaxima Add Latinmaxima to Your Friends list Reply With Quote top
Old 07-03-2012, 05:14 PM   #13
The Irish 6th Gen!
my6thgen.org Profile Info.
 
iirishsamuraii's Avatar
 
Join Date: Feb 2010
Official Member #: 61
Last Online: 05-02-2014 07:53 AM
Location: NJ
Posts: 1,733

Reputation Level: 15
iirishsamuraii is on a distinguished road

Participation Level: 0%
Activity: 0% Activity: 0% Activity: 0%

My Awards:
Supporting Family Member  


/ Point Value: 10

Banner of The Month  


/ Point Value: 10

Default Re: Sub Box Design And Port Tuning

<master box builder here i see alot of questions and answers and talk back and fourth so if u got any questions feel free to ask me jus send a txt or a pm
iirishsamuraii is offline   Send a private message to iirishsamuraii Find more posts by iirishsamuraii Add iirishsamuraii to Your Friends list Reply With Quote top
Old 07-03-2012, 07:45 PM   #14
Official Member
my6thgen.org Profile Info.
 
joecurr's Avatar
 
Join Date: Sep 2010
Official Member #: 626
Last Online: 03-26-2014 08:45 PM
Posts: 454

Reputation Level: 28
joecurr has a spectacular aura aboutjoecurr has a spectacular aura about

Participation Level: 0%
Activity: 0% Activity: 0% Activity: 0%

My Awards:
Honorable Ride  


/ Point Value: 5

Default Re: Sub Box Design And Port Tuning

Originally Posted by chris72983 View Post
I'm still not understand why they wouldnt give you a recommended port size for the box. If you look at JL audio's specs on their 8W7 it give you recommended box and port dementions.
Because they shouldn't have to. All they really have to provide is the recommended internal space and the tuning frequency, which they did. It is up to the user what dimensions the box needs to be, and the dimensions of the box will affect the dimensions of the port. If you are building a custom ported box you should know how to tune a port, there are several ways to build a port tuned to the same frequency. All JL did was provide a suggestion for a box and port, not exactly a recommended one.
__________________
Click the image to open in full size.
joecurr is offline   Send a private message to joecurr Find more posts by joecurr Add joecurr to Your Friends list Reply With Quote top
Old 07-03-2012, 07:49 PM   Thread Starter #15
M Towns Finest
my6thgen.org Profile Info.
 
chris72983's Avatar
 
Join Date: Apr 2012
Official Member #: 5140
Last Online: 03-06-2014 09:18 AM
Location: Tha SIP
Posts: 2,237

Reputation Level: 21
chris72983 will become famous soon enoughchris72983 will become famous soon enough

Participation Level: 0%
Activity: 0% Activity: 0% Activity: 0%
Default Re: Sub Box Design And Port Tuning

Originally Posted by joecurr View Post
Because they shouldn't have to. All they really have to provide is the recommended internal space and the tuning frequency, which they did. It is up to the user what dimensions the box needs to be, and the dimensions of the box will affect the dimensions of the port. If you are building a custom ported box you should know how to tune a port, there are several ways to build a port tuned to the same frequency. All JL did was provide a suggestion for a box and port, not exactly a recommended one.
Ok, well that's what I'm wanting to know. How do you figure needed port size?Surely someone on here can explain how you figure it
__________________
Click the image to open in full size.
chris72983 is offline   Send a private message to chris72983 Find more posts by chris72983 Add chris72983 to Your Friends list Reply With Quote top
Reply


Currently Active Users Viewing This Thread: 1 (0 Members And 1 Guests)
 
Thread Tools


All times are GMT -4. The time now is 06:10 AM.