Giant 4th Order: Worklog

[jmanpc 5,000+ posts]

and sub_urban... update yer sig dammit

 

[CBFryman2 5,000+ posts]

i dont think they were bottoming out...
however, I have seen some subs acting weird from being underpowered. For example, we hooked up a pair of MTX Thunder 4510's up to a JL 500/1 at 8 ohms. On drawn out bass notes, one sub would reach full excursion, and the other would hardly move, and then it would slowly shift to where the other sub was at full excursion. But when we dropped it to 2 ohms, and let the subs see enough power, they wanged just fine...

long string of series wiring FTL. Perhaps you had one of the coils out of phase.

 

[SUB_URBAN 10+ year member]

long string of series wiring FTL. Perhaps you had one of the coils out of phase.

This could actually be the problem, might need to redo a little wiring. Luckily we have access to the subs in the box because you can fit ur whole body inside the port lol.

 

[jmanpc 5,000+ posts]

long string of series wiring FTL. Perhaps you had one of the coils out of phase.

nope, i actually took one of the subs back out and reversed the polarity, and that way was def out of phase. so i put it back and it was still funky, so i just switched em to parallel and bam

 

[Chevyaudio 5,000+ posts]

ummm 9v Battery test...If you are worried they are out of phase...

 

[Chevyaudio 5,000+ posts]

And if you had only one coil out of phase...the woofer with that one out of phase coil wouldnt move...Because in theory the coil in that sub would be "working against" each other...Just pop the lead wire into the box with a 9v and make sure all the subs move the same way.

 

[saywhat? 5,000+ posts]

a AA battery works too //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif and less voltage

 

[Chevyaudio 5,000+ posts]

meh Real men use a 19v Drill battery. and jump the coil out of the gap.

 

[jmanpc 5,000+ posts]

And if you had only one coil out of phase...the woofer with that one out of phase coil wouldnt move...Because in theory the coil in that sub would be "working against" each other...Just pop the lead wire into the box with a 9v and make sure all the subs move the same way.

the subs were SVC, wired together in a sealed box... so i had to take em out anyways... I've been at this car audio thing long enough how to test if a speaker is in phase..

anyways... how bout that 4th order.