Inverting a subwoofer.

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05-14-2004, 01:35 PM

#11

Dave MacKinnon

Guest

Posts: n/a

Westec is right.. you can now hear all sorts of nasty motor noise.. I wouldn't recommend it.

05-14-2004, 03:33 PM

#12

hobbes26

50 Watt CAFz'r

Join Date: Oct 2003

Posts: 146

Oh yeah... Forgot that point. Gotta find one that has venting taken care of in a way that doesn't cause too much noise...

05-14-2004, 03:37 PM

#13

Sassmaster

Merry Christmass from CCA

iTrader: (2)

Join Date: May 2002

Posts: 2,579

DLS SP or UR series have huge flares on their back plates.

05-14-2004, 03:38 PM

#14

Chadxton

2000 Watt CAFz'r

iTrader: (1)

Join Date: Nov 2002

Posts: 2,707

Quote:

Originally posted by scarlemthug:
u should reverse the phase of the driver aswell

Bah. Only if you have one driver inverted and the other normal. I notice no difference either way with my sub inverted.

As far as vented pole noise, I hear none. In a vented box, would you really think it would be different if the sub was mounted normally? I found it amplified the vent noise more that way than inverted.

And I gained a precious .3 cu ft from inverting.

[ May 14, 2004, 04:39 PM: Message edited by: Chadxton ]

05-14-2004, 06:15 PM

#15

Claudio Piccolo

50 Watt CAFz'r

Join Date: Apr 2004

Posts: 445

Again, if the box is designed correctly you will not have an issue.

05-15-2004, 02:49 PM

#16

13idnyk

500 Watt CAFz'r

Join Date: Oct 2002

Posts: 832

Mines inverted. Mainly cuz i have no room to mount normaly! Looks nice. Sounds fat. Im happy

05-15-2004, 09:47 PM

#17

Blinddemonz

4000 Watt CAFz'r

Join Date: May 2003

Posts: 4,655

Quote:

Originally posted by defro:
inverting woofers is strictly cosmetic, no benefit whatsoever sonically

I agree, though I feel that when people do this for cosmetic reasons it only really looks good when its in a fibreglass install IMO.

05-17-2004, 02:54 PM

#18

Dave MacKinnon

Guest

Posts: n/a

it's not the subwoofer enclosure vent that makes the noise, it's air flowing around the voice coil and spider at high velocities. This can vary from a mild whooshing noise to chuffing and puffing as low frequencies are produced.