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View Full Version : is there any trouble if mount my sub closeness to the port?



zen
11-14-2013, 08:00 PM
im building a subwoofer box (already finish, just to make hole mounting) for k9 db drive
but wan to know if there is any problem like port noise, soundwaves or something like that, if it is 3 inch next to the port

jrdnhsnbrg
11-14-2013, 08:01 PM
im building a subwoofer box (already finish, just to make hole mounting) for k9 db drive
but wan to know if there is any problem like port noise, soundwaves or something like that, if it is 3 inch next to the port

Post a picture of what you mean

SounDrive
11-14-2013, 08:02 PM
We need to see what you mean by "3 inch next to the port" to be able to tell you anything.

zen
11-14-2013, 09:11 PM
http://i1129.photobucket.com/albums/m518/zen79/DSC06358.jpg (http://s1129.photobucket.com/user/zen79/media/DSC06358.jpg.html)
http://i1129.photobucket.com/albums/m518/zen79/DSC06357.jpg (http://s1129.photobucket.com/user/zen79/media/DSC06357.jpg.html)
http://i1129.photobucket.com/albums/m518/zen79/DSC06356.jpg (http://s1129.photobucket.com/user/zen79/media/DSC06356.jpg.html)

here they are... cause the box will be in a suv of a friend of mine, and he carries with some tools and stuff, just to have less area to care of.. and we were thinking of that.. port noise.. o sound waves.. not recomended cause... something

bgowdy31
11-14-2013, 09:19 PM
i was always told to have subs as far away as possible. but i dont really know what happens if they are close

zen
11-15-2013, 08:28 PM
here are a few pics of enclosure finish (and steps behind) forgot to take one with the sub mounted
2.3cu/ft tuned to 38-40 with flare at the start of port
http://i1129.photobucket.com/albums/m518/zen79/DSC06353.jpg (http://s1129.photobucket.com/user/zen79/media/DSC06353.jpg.html)
http://i1129.photobucket.com/albums/m518/zen79/DSC06354.jpg (http://s1129.photobucket.com/user/zen79/media/DSC06354.jpg.html)
http://i1129.photobucket.com/albums/m518/zen79/DSC06359.jpg (http://s1129.photobucket.com/user/zen79/media/DSC06359.jpg.html)

zen
11-18-2013, 03:23 PM
tHanks every one

moneypit
11-18-2013, 06:24 PM
A kerf inside.... whats the idea in that. I've never done one but thought it was suppose to be on the outside to help in the airflow. Just askin.

zen
11-22-2013, 03:49 PM
its like kerf port, but not as it is
but yes i have listened less port noise than just start port without it, and 45 corners yes they help a lot(than 90 degrees), more sq and spl

and about have to be outside, yes but in both sides help somehow (more work and difficult, for me at least, to do it). thats why pvc ports have flare in both sides

mlstrass
11-23-2013, 03:49 AM
Should be NO port noise whether you do a kerf or not if the port is the proper size....

zen
11-25-2013, 02:19 PM
Should be NO port noise whether you do a kerf or not if the port is the proper size....

i mean that :P
i have heard more accurate bass with 45 corners and kerf where port starts, less turbulence on air flow (last one just about what i have read in some forums)