View Full Version : noob excursion question

01-02-2007, 05:14 AM
i had a ported box built (32hz @ 4.3 cu gross) using the same chamber for my subwoofers. i noticed that the sub further away from the port would have more excursion/flexing/etc than the sub closer to the port. is this a common issue or did one of my woofers just ***** itself?
it wasnt like this when i had them in a sealed box. i never smelled any kind of smoke or seen anything comming out the trunk ever since i got this box.:eyebrow:

01-02-2007, 05:32 AM
Get a DMM and check the coils.

01-02-2007, 05:50 AM
what subs are they? cause if they are the ones in your avatar, thats what I run.

01-02-2007, 06:08 AM
Maybe one just came unhooked or its just something minor like that.:uhoh:

01-02-2007, 06:28 PM
Yea I would check all your connections and make sure they are all wired properly.

01-02-2007, 06:30 PM
is it a big difference? usually one moves a tad more than the other in a ported box.

01-02-2007, 06:50 PM
i checked all connections and everything was wired fine (speakers in paralell).
it wasnt a huge difference; the sub further away from the port would have about a .5" more flex on loud bass notes.

ill try and get a video up.

01-02-2007, 09:19 PM
link to vid: http://www.youtube.com/watch?v=ryYIWF9E_z8
playing young jeezy - hypnotize (track #1). pay closer attention to the end of the clip.

PV Audio
01-02-2007, 10:30 PM
Almost 100% sure one is out of phase. Notice how the excursion is almost EXACTLY opposite on that last note where you can see both moving separately.

01-03-2007, 12:17 AM
i have my phase is set to the lowest/off. is it recommended that i adjust it to box/sub settings?

01-03-2007, 12:25 AM
to check the phase you have to take the subs out and check your wires. not the phase setting on the amp. its very noticeable difference that one sub is excurting way more then the other. if they are in phase then it could be that you have one sub that the spider is already worn out and is ready to go.

are both subs runing of off the same amp?

01-03-2007, 12:43 AM
ill have to check that on thurs. both subs are running off an hifonics bxi1606d @ 1ohm.

01-03-2007, 01:54 AM
mine did that when the were wired in stereo, i switched to mono and it helped the problem, are they wired in stereo or mono?