loud and clear

[audioholic 5,000+ posts]

yea proving my point more lol. ported is the way to go

You keep comparing apples to oranges. Generally speaking, a ported box will be twice the size of the equivalent sealed box for a given speaker. Intensity increase is freq dependent, but on average you gain approx 3db going ported over sealed. But with a sealed setup including half the enclosure size, you can fit twice as many subs. Guess how many db's (on average) you gain by doubling cone area (subs)...? //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif 3db. People think ported systems have so much more 'potential' because they see SPL competitors run ported so efficiently and successfully. The problem with using that as a measuring stick is, SPL competitors burp a very specific frequency very near enclosure tuning which maximizes enclosure efficiency, giving it more than the average 3db increase over its sealed counterpart. But in a music situation where frequency fluctuates, the '3db rule' is much more applicable, and the advantages are pretty much nil (port increase vs double cone area sealed).
Ported setups gain most of their output increase over sealed setups in the lowest octaves, exactly where its (usually) not needed due to cabin gain. So this huge output advantage you keep referring to usually works out to an artificially fat bottom-end, which anyone interested in a smooth frequency response will tame down via EQ'ing anyway.

You say that the six 12's not fitting in a trunk proves your point, yet it doesn't. If its truly double the cone area over the 18 ported, enclosure size will be pretty close. Ported will be slightly smaller due to less speaker displacement not overcoming the port area.

i prefer less subs. less wiring and less airspace to divide and less hassle. but either way

Ported setups have more 'hassle' in enclosure tuning and construction. Ive already covered your misunderstanding of 'less airspace'. Again, the advantages and drawbacks of each setup are pretty much a wash when talking generalities.

Sorry my first reply to you was not as respectful as it should have been. Just because you misunderstand the situation does not give me the right to call your opinion 'nonsense'. I apologize.

Cheers.

 

[audioholic 5,000+ posts]

I forgot to add one thing. The big advantage going with fewer subs ported versus more subs sealed is, initial cost of the equipment. But as I stated, the output advantage is lopsided, not across the entire frequency spectrum. So there again, cost versus frequency increase is considered a 'wash' by many people.

 

[hrtbrk1 5,000+ posts]

alright i have a 1995 caprice it has a huge trunk i wanna go sealed i was thinkin like 6 12s or 4 15s maybe not dont know yet my budget is up to 150 a sub i wanna get loud but maintain quality thanx for any an all help
heath

i will send you a link i am a dealer for sundown..

lol i shud get special mention for this

 

[dbeez 5,000+ posts]

lol i shud get special mention for this

i will put you on my grave stone man thanx..Special thank to my man buddy hrtbrk1 for the shout out..

 

[hrtbrk1 5,000+ posts]

i will put you on my grave stone man thanx..Special thank to my man buddy hrtbrk1 for the shout out..

haha sweet //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[PIITB Wut Wut 10+ year member]

no its salty.

 

[95caprice 10+ year member]

dbeez ru an hour ahead or an hour behind my time

 

[BigJoker 10+ year member]

theres a cadilac fleetwood i compete with doing 156.xx out of the trunk on 1 dc level 5 18 and 2 powerbass 5ks. now tell me how the hell u can get a 156 out of a trunk with 6 12s sealed?

proof.

 

[PIITB Wut Wut 10+ year member]

kinda hard to judge the caddy tho, mic monkey style in the kick. not the normal globe or on the dash metering... so take that as u may.

ps... for what it is i back that statment... the caddy is real... and really does that number... just not what ur used to.

 

[dbeez 5,000+ posts]

i am 1 hour ahead of you caprice..

 

[audioholic 5,000+ posts]

kinda hard to judge the caddy tho, mic monkey style in the kick. not the normal globe or on the dash metering... so take that as u may.


ps... for what it is i back that statment... the caddy is real... and really does that number... just not what ur used to.

If its not the standard measuring method, it doesn't really do that number. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif Might as well stick the mic in the port and say it does 170.

 

[basscort2009 5,000+ posts]

kinda hard to judge the caddy tho, mic monkey style in the kick. not the normal globe or on the dash metering... so take that as u may.


ps... for what it is i back that statment... the caddy is real... and really does that number... just not what ur used to.

mic monkey is the way to go though. sealed up on the dash is gay for some cars. i lose a little over 4 db sealing it up!!! lol

 

[basscort2009 5,000+ posts]

You keep comparing apples to oranges. Generally speaking, a ported box will be twice the size of the equivalent sealed box for a given speaker. Intensity increase is freq dependent, but on average you gain approx 3db going ported over sealed. But with a sealed setup including half the enclosure size, you can fit twice as many subs. Guess how many db's (on average) you gain by doubling cone area (subs)...? //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif 3db. People think ported systems have so much more 'potential' because they see SPL competitors run ported so efficiently and successfully. The problem with using that as a measuring stick is, SPL competitors burp a very specific frequency very near enclosure tuning which maximizes enclosure efficiency, giving it more than the average 3db increase over its sealed counterpart. But in a music situation where frequency fluctuates, the '3db rule' is much more applicable, and the advantages are pretty much nil (port increase vs double cone area sealed).
Ported setups gain most of their output increase over sealed setups in the lowest octaves, exactly where its (usually) not needed due to cabin gain. So this huge output advantage you keep referring to usually works out to an artificially fat bottom-end, which anyone interested in a smooth frequency response will tame down via EQ'ing anyway.

You say that the six 12's not fitting in a trunk proves your point, yet it doesn't. If its truly double the cone area over the 18 ported, enclosure size will be pretty close. Ported will be slightly smaller due to less speaker displacement not overcoming the port area.

Ported setups have more 'hassle' in enclosure tuning and construction. Ive already covered your misunderstanding of 'less airspace'. Again, the advantages and drawbacks of each setup are pretty much a wash when talking generalities.

Sorry my first reply to you was not as respectful as it should have been. Just because you misunderstand the situation does not give me the right to call your opinion 'nonsense'. I apologize.

Cheers.

that 3 db is just a rule o thumb. when i doubled my power i got over 3 dbs. and then when i doubled it again i gained about 1.8

 

[audioholic 5,000+ posts]

that 3 db is just a rule o thumb. when i doubled my power i got over 3 dbs. and then when i doubled it again i gained about 1.8

I covered the 3db reasoning pretty clearly. My comments still stand.

 

[basscort2009 5,000+ posts]

yea well ported is and will always be able to get louder than sealed no matter what. what finals guy have u ever seen running sealed? who bassraces sealed and does high number compared to tother guys with same shit? who burps on 14k sleaed? no one.