Sealed > Vented........discuss

[Lakota 5,000+ posts]

They each have their own purposes. My subs are sealed, and I'm not to sure how these oldschool Kickers will do ported. I'd like to see what they'd do.

 

[Slammed 5,000+ posts]

some subs are designed for sealed enclosures

ex: round Kicker Solos...HSU Research subs

 

[joetama 5,000+ posts]

Depends on the sub like i said lol.....

 

[lebomb 10+ year member]

Im not knocking ported, because when I went from sealed to ported on my CompVR I was blown away by the SPL increase, but......going back to sealed, all my music sounds right again. I hear the kick drums more, and on other types of music other than bass heavy, it just sounds wonderful.

As yall have said, that is the difference between sealed and ported.

I guess Im just a sealed guy. //content.invisioncic.com/y282845/emoticons/imdaman.gif.bc6c552e19aa4ad8c47461144f40eb1a.gif

 

[VereChronicus 10+ year member]

That is what SOME have said. The way to really "try" to compare is to take a look at super high dollar home audio systems. The subwoofers come in both ported and sealed offerings. To move the piston as LITTLE as possible is the name of the game when it comes to distortion, so tons of surface area makes output possible with little excursion. Most larger subs have extreme mass to go along with them, so most companies stick with 15's 12's and 10's. Servo controlled systems do the job well also. Martin Logan broke out a big *** system that utilizes a bunch of 12" subwoofers in sealed enclosures. Tight impact and very good low frequency extension with tons of cone area making excursion very minimal to achieve high output. To think that "a ported enclosure" cannot track with heavy metal kick drums only comes from a particular A/B comparison that someone may have made. Not all sealed applications will fit into "A" nor all ported into "B". The guys that own Rainbow use a pair of DD 3512's in a ported enclosure in their SQ demo vehicle in Germany. There is truth to one being better than the other via personal preference, but it is only true to yourself. I've got a personal preference for multiple TL enclosures as well as ELF circuitry running multiple smaller drivers. My home system consists of two 4.5" wide x 8.5" long x 48" tall that each house (8) 6.5's. That is the cone area of (2) 18" subwoofers with the speed of 6.5's. Pure cone area along with the Bagend ELF circuit enables them to hit blue whale ejaculation frequencies. I'm all 'bout it-bout it' if it gets fairly low and loud and can track with Neil Peart and Mike Portnoy when they're pissed off.

 

[lebomb 10+ year member]

That is what SOME have said. The way to really "try" to compare is to take a look at super high dollar home audio systems. The subwoofers come in both ported and sealed offerings. To move the piston as LITTLE as possible is the name of the game when it comes to distortion, so tons of surface area makes output possible with little excursion. Most larger subs have extreme mass to go along with them, so most companies stick with 15's 12's and 10's. Servo controlled systems do the job well also. Martin Logan broke out a big *** system that utilizes a bunch of 12" subwoofers in sealed enclosures. Tight impact and very good low frequency extension with tons of cone area making excursion very minimal to achieve high output. To think that "a ported enclosure" cannot track with heavy metal kick drums only comes from a particular A/B comparison that someone may have made. Not all sealed applications will fit into "A" nor all ported into "B". The guys that own Rainbow use a pair of DD 3512's in a ported enclosure in their SQ demo vehicle in Germany. There is truth to one being better than the other via personal preference, but it is only true to yourself. I've got a personal preference for multiple TL enclosures as well as ELF circuitry running multiple smaller drivers. My home system consists of two 4.5" wide x 8.5" long x 48" tall that each house (8) 6.5's. That is the cone area of (2) 18" subwoofers with the speed of 6.5's. Pure cone area along with the Bagend ELF circuit enables them to hit blue whale ejaculation frequencies. I'm all 'bout it-bout it' if it gets fairly low and loud and can track with Neil Peart and Mike Portnoy when they're pissed off.

Great comment..............thanks. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[ighettoboyi 10+ year member]

sealed is great...but if you're lookin for boom (like jiggaboo tracks), ported is the only way to go //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[lebomb 10+ year member]

sealed is great...but if you're lookin for boom (like jiggaboo tracks), ported is the only way to go //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

What about Classical tracks??? //content.invisioncic.com/y282845/emoticons/eyebrow.gif.fe2c18d8720fe8c7eaed347b21ea05a5.gif

 

[jimmyjames1700 10+ year member]

a well designed, low tuned, vented enclosure can give you that //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

I disagree. In the realm of vehicles you get such a huge LF gain from the vehicles natural transfer function that a low tuned enclosure (say around 30Hz and less) has a way over emphazised low end that it adversely affects transient response. Not to mention that generally the lower you tune a vented enclosure the more you will encounter group delay which also affects transients.

I think that if you crave some extra thump and must go ported but still want the good transients, you are best of tuning the enclosure around 35-40 Hz or even slightly higher. Just be sure to not over size the enclosure so you can control the ripple around the tuning frequency.

A sealed enclosure is the best suited for a vehicle because they hit thier -3dB pint higher and get a perfect compliment from your own car. Just the opposite for a house however where you desire the lower -3dB down point and lower excursion.

 

[squeak9798 5,000+ posts]

That is the cone area of (2) 18" subwoofers with the speed of 6.5's.

//content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif//content.invisioncic.com/y282845/emoticons/waycrazy.gif.f4a380c3f94043939fd369defd9e6be2.gif//content.invisioncic.com/y282845/emoticons/eyebrow.gif.fe2c18d8720fe8c7eaed347b21ea05a5.gif

 

[jimmyjames1700 10+ year member]

tee...hee!!!!!!!!!//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[JimJ 5,000+ posts]

Speed of 6.5's?

 

[JimJ 5,000+ posts]

I disagree. In the realm of vehicles you get such a huge LF gain from the vehicles natural transfer function that a low tuned enclosure (say around 30Hz and less) has a way over emphazised low end that it adversely affects transient response.

I have an enclosure tuned to 27Hz...transient response isn't affected adversely at all. The low end could get overpowering if I wanted it to, sure...but dialed back and blended with the soundstage, it's very accurate and musical.

Now tuning much below 25Hz truly is a waste of time in a vehicle...

 

[squeak9798 5,000+ posts]

Speed of 6.5's?

Yeah dude...it's sort of like the tortoise and the hare......they are so fast that when they play a 50hz tone, they get their 50 cycles done in 3/4 of a second and take a quarter second break.

 

[denim 5,000+ posts]

hey lebomb, I dont recognize you topics with out some booty shots in them,

 

but I prefer the response of sealed, but I would love to build a TL box next