Reply
Old 01-28-2010   #1 (permalink)
 
DIYMA freshman
Join Date: Nov 2009
Location: Seattle
Posts: 61


iTrader: (1)



Default Benefits of Porting Midrange?

Hey,
How often do people port their midrange(~300-6k)? In cars?

-Justin
justinmreina is offline   Reply With Quote
Old 01-28-2010   #2 (permalink)
 
ncv6coupe's Avatar
 
DIYMA freshman
Join Date: Oct 2009
Location: CLT, NC
Age: 25
Posts: 187


iTrader: (1)



Default Re: Benefits of Porting Midrange?

1khz, stay sealed
500hz, stay sealed
300hz, shouldn't need to be ported and sealed response should be the exact same thing

BUT

You now have to worry about 299hz and down that bleed pass the crossover, of course you already know the xover is not a brick wall unless its a $5,000 digital shindig, but I would still stay sealed so that midbass can be hi-passed naturally in the box and you have an efficiency boost depending on enclosure size/smaller results in efficiency boost for midbass extension.
ncv6coupe is offline   Reply With Quote
Old 01-28-2010   #3 (permalink)
 
DIYMA freshman
Join Date: Nov 2009
Location: Seattle
Posts: 61


iTrader: (1)



Default Re: Benefits of Porting Midrange?

Sweet that's kind of what I figured. The mid/full range drivers that I've seen ported (home audio) have always been playing down much lower than 300Hz, usually down close to the Fs of the driver. Was just curious, as it would be fun

-Justin
justinmreina is offline   Reply With Quote
Old 01-28-2010   #4 (permalink)
 
DIYMA freshman
Join Date: Nov 2009
Location: Iowa
Posts: 120


iTrader: (0)



Default Re: Benefits of Porting Midrange?

If Wilson Audio can do it, why can't you. I would fear the complexity of optimizing crossover points with respect to tuning frequency.
mosconiac is offline   Reply With Quote
Old 01-28-2010   #5 (permalink)
 
89grand's Avatar
 
DIYMA Addict
Join Date: Nov 2006
Location: Phoenix, AZ
Posts: 6,704


iTrader: (4)



Default Re: Benefits of Porting Midrange?

There's no benefit to porting a mid range speaker operating within that frequency range.
89grand is online now   Reply With Quote
Old 01-28-2010   #6 (permalink)
 
ncv6coupe's Avatar
 
DIYMA freshman
Join Date: Oct 2009
Location: CLT, NC
Age: 25
Posts: 187


iTrader: (1)



Default Re: Benefits of Porting Midrange?

Quote:
Originally Posted by 89grand View Post
There's no benefit to porting a mid range speaker operating within that frequency range.
I think this is what my answer should have been, short and sweet, lol
ncv6coupe is offline   Reply With Quote
Old 01-29-2010   #7 (permalink)
 
DIYMA Novice
Join Date: Jan 2010
Location: Portland
Posts: 261


iTrader: (0)



Default Re: Benefits of Porting Midrange?

Why would you want to port a midrange anyway? Seems like it would sacrifice sq?
HertzGuy is offline   Reply With Quote
Old 01-29-2010   #8 (permalink)
 
94VG30DE's Avatar
 
DIYMA Enthusiast
Join Date: Nov 2007
Location: From the Mitten to the Prairie
Posts: 1,503

Send a message via AIM to 94VG30DE

iTrader: (8)



Default Re: Benefits of Porting Midrange?

Quote:
Originally Posted by HertzGuy View Post
Why would you want to port a midrange anyway? Seems like it would sacrifice sq?
ugh. Porting <> bad essque.

Sealed vs. Ported and SQ ... Myth or Fact ?

The point is just that it's not really necessary in this frequency range, and definitely add complexity and size.

94VG30DE is offline   Reply With Quote
Old 01-29-2010   #9 (permalink)
 
89grand's Avatar
 
DIYMA Addict
Join Date: Nov 2006
Location: Phoenix, AZ
Posts: 6,704


iTrader: (4)



Default Re: Benefits of Porting Midrange?

Besides that, porting increases output and decreases excursion at and around the tuning frequency. Who wants more output anywhere in the range of 300-6khz, or needs less excursion?
89grand is online now   Reply With Quote
Reply

  DIYMA.com » DIY Audio Discussion » The Dumb Question forum

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 On
Pingbacks are On
Refbacks are On

Second Skin Damplifier CLD Mat
Links
Affordable Noise Insulation
Aftermarket noise, heat and vibration insulation. Sound Damping at its best!
Second Skin Sound Deadening
Aftermarket insulation products for reducing noise, heat and vibrations in automobiles. Sound deadener at its finest!
Sound Deadener
Second Skin Sound deadening for noise heat and vibration reduction in aftermarket applications.
Sound Solutions Audio
Where car audio and automotive enthusiasts go to seek out superior products and knowledge from experienced people in the industry


All times are GMT -6. The time now is 02:36 AM.


Powered by vBulletin®
Copyright ©2000 - 2010, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.3.2 ©2009, Crawlability, Inc.

Meet Our Team | Forum | Privacy and Rules | Advertise | Archive | Search | Contact Us

Home | User CP | Members List | New Posts | ITrader | Faq | Post Spy