4 subs

[smokeoff 10+ year member]

How would this sound 2 subs in ported box facing back and 2 subs in seald box facing foward. It is a full trunk not a hatchback and the subs are 12" Polk GNXs.

Click to read more...

 

[smokeoff 10+ year member]

just looking for some advice

 

[DaBaller504 10+ year member]

why ported and sealed? why not make one giant box

 

[smokeoff 10+ year member]

I am trying to get the best SQ and SPL with the Smallest Box.

 

[bumpin_blazer 5,000+ posts]

i wouldn't mix ported and sealed. why not just put the 4 12"s ported very low or are those subs one's that do not perform well in a tuned box around 30hz??

adam

 

[smokeoff 10+ year member]

How do you know what you box is tuned at and how do you tune it?

 

[bumpin_blazer 5,000+ posts]

port length and width determine the freq. http://www.linearteam.org i believe is a site that has a TON of helpful programs to figure things like that out. i myself do not know how that 's why i have people like Steve, or Loyd help me out when tuning my box's hehe.

adam

 

[smokeoff 10+ year member]

How would 2 seald boxes both with 2 subs in each in a v shape facing as much back as possible sound? Then I don't have to screw with tuning and risk f'ing up

 

[thegunner 5,000+ posts]

tuning is easy, just go to http://www.linearteam.org like adam said, and download WinISD Pro, and enter the specs of your sub if its not in their database, and then select it under the new project window, and follow the steps in the window, select vented as your enclosure, and then it will ask you how big and what frequency you would like it tuned to, and you choose the frequency, and then under vents ou choose either square or circle and you can adjust the length and width and the program tells you how deep to make it according to your length and width specifications.

Pat

 

[smokeoff 10+ year member]

They don't have my sub in the program. I don't even know what half of those mesurements are. Were could I get them for my sub. Polk audio GNX 12"

 

[TJD15HC 10+ year member]

Why not get just 1 kickass sub? I have 4 12" Pioneers, and i just got a 15" HC and i would never turn back.

 

[smokeoff 10+ year member]

I all reday have 2 GNXs and I can get another 2 for just $160 Bucks.

 

[DaBaller504 10+ year member]

That site will help you out a lot.

 

[MikeofTulsa Moderator]

if im not mistaken mixing ported and sealed could result in some cancelation......now if ur serious about going ported feel free to hit me, steve(ss3079), or loyd(bigbassman) up on aim......or go all sealed....but if u port the box and tune it to around say 28-33hz u should still maintain good sq while gaining a bit more spl.....

 

[DaBaller504 10+ year member]

You will notice a lot of cancellation when mixing. I would say go with a slot ported box, that will hold all four subs. I reccomend separate chambers though. But there are alot of people on this site who could really help you out.