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View Full Version : 2 ports parrellel to eachother, ok?



stickytak
04-13-2010, 05:34 PM
would this be bad? or does it not matter, how they are on the same x,y and z plane?


http://i2.photobucket.com/albums/y46/emccubed/subss.jpg

bubbagumper6
04-13-2010, 05:38 PM
It's kind of a strange design...why do you want subs firing in 2 different directions?

stickytak
04-13-2010, 05:41 PM
its the only way it will fit in my trunk, lol. but will that work? or no?

IamMe
04-13-2010, 05:48 PM
Wouldnt be really that great.

Best performance would be all subs on one plane, and port on a perpendicular plane.

Better off just having one port.

You may have some phase alignment issues and port unloading.
Ports usually like having a solid surface behind the opening to load better.

Actually, if thats the only way to have subs fit. You will probably have better performance from just 2 woofers.

O.G. D-Wet
04-13-2010, 05:49 PM
I wouldn't do it. Wotn sound waves travel from the back of the subs and out the subs firing the opposite direction? I think it would be a distorted mess. If ur that desperate to fit 4 subs than do a true Isobaric

^^^What IamMe said

stickytak
04-13-2010, 05:59 PM
I'm thinking I can put a wall between the two subs so its two boxes, and keep the same port,

Ronny
04-13-2010, 06:12 PM
Yeah, separate into two pairs of woofers.
Also, make sure you have at least one port width of clearance from the wall piece.
Did you calculate for multiple ports and obtain that port length? Port length will have to be changed for each separate enclosure etc..

hispls
04-13-2010, 06:13 PM
I don't mind subs to each side in a trunk it will probalby work, but the ports would probably interfere with eachother. I'd look into a single port solution.

mossberg385t
04-13-2010, 06:20 PM
if you wire 2 of them backwards you wont have any phase issues, i used to run around with 1 sub inverted and 1 not b/c the motor was pretty *****in' and they hammered

as for the port idk what to tell you, im new to building ported boxes

RAM_Designs
04-13-2010, 07:20 PM
I see cancellation issues in your future.

O.G. D-Wet
04-13-2010, 09:59 PM
How is this the ONLY way u can fit these??? U shud list the subs and how much space u have 2 wrk w/

stickytak
04-13-2010, 10:04 PM
15tallx33widex36deep Wall to wall to 39"

And if I just made one port, but bigger, I dont think the subs would cancel, It'd be just like facing two subs at eachother, right?

iamamp3pimp
04-14-2010, 01:59 PM
Wouldnt be really that great.

Best performance would be all subs on one plane, and port on a perpendicular plane.

Better off just having one port.

You may have some phase alignment issues and port unloading.
Ports usually like having a solid surface behind the opening to load better.

Actually, if thats the only way to have subs fit. You will probably have better performance from just 2 woofers.

or sealed.

if thats all you got fire the subs up, sealed.

iamamp3pimp
04-14-2010, 02:00 PM
Mossberg, this is different than one sub inverted and one not inverted.

they still need to be wired in phase.