View Full Version : four 12"s ported in an accord

12-08-2006, 02:08 AM
So i have hadthese crystal subs laying around for a while and was considering porting it in the back of my Accord. I found the box calculator on REs website quite helpful and when it comes to ported enclosures im clueless. but here is what i have. Roughly 6 cubes @ 32. I was wondering how this would sound. I'm looking for loud with some sq.

Here are the dimensions of the box that i got from the RE website:

box width = 35
box height = 30
box top depth = 15
box bottom depth = 15
wood thickness = 0.75
square port height = 28.5
square port width = 3
square port length 1 = 11.25
square port length 2 = 12
total port length = 28.5
box volume (ft3) = 6.039
tuned frq = 32.487

and here is the only information on the drivers i could find. These are Crystal PROst subs SVC 4 ohm. I will be running these to my RE 12.1

12 Cast Aluminum Basket
4 Layer Voice Coil
Butyl Rubber Surround
Woven In-Spider Tinsel Leads
Bumped & Vented Back Plate
5-Way Binding Posts
Fs 22.252 Hz
Re 3.6 Ohms
SPL 86.95 1watt / 1M
Qms 4.185
Qes 0.319
Qts 0.297
Vas (Sd) 63.952 Liters
Bl 21.845 Telsa-M
Power Handling 300w rms
Recommended Enclosure: 1.2 cu. ft. sealed
Mounting Depth 5.25 in.

Any suggestions are greatly appreciated. I really need some input on this and i am really unsure on if the box will be big enough to go ported with these subs. If i definetely need a bigger box than i might as well stay sealed because the dimensions of the box is the maximum area i have to work with to fit in my trunk.

12-08-2006, 03:13 AM
two ported in about 4ft^3

12-08-2006, 03:18 AM
how woudl that compare to 4 of them sealed?

12-08-2006, 04:23 PM
Is there a minimum enclosure size or general rule when applying ports to a certain number of subs? Would 6 Ft^3 cut it or would i need somethign a lot larger. I never really understood how that affected the kind fo soudn that came out.

I have not had any luck finding this kind of information, can someone give me an idea of what to search for maybe im just not searchign the right things.

12-08-2006, 04:26 PM
wish i could help u with that man...kind of one of those specific type application questions...6 cubes sounds nice for an accord...big box

12-09-2006, 02:56 AM
bump...help the guy out here

12-09-2006, 06:09 PM
thanks for the bump man. I think after much consideration and also the input of others i have decided to go with 6 cubes sealed. shared chamber with double baffle.