What Can I Do To Fix This???

[ngsm13]

Originally Posted by DigitalSpuder

Thanks everyone for the ideas, I want to keep both subs running on the same power, just to keep a clean hook-up going.
Someone mentioned that the fact the amp is not liking the 1 ohm load could be causing the subs to make that terrible sound...is that true? Or could the box be causing this?
Well, I'll be back, going to go and run these suckers in series/parallel for a 4 ohm load.

I wouldn't be surprised if that JL amp took a 1ohm load, but I also wouldn't want to chance it on such an expensive amp!

Anyways, saying goes: 10% product 90% Install. And from me: It's ALL in the box. So, redesign...get you a nice ported enclosure (i can design a custom one for you!) Bought 4 cubes NET @30hz and you'll be AMAZED at the difference!

NG

[DigitalSpuder]

My one JL sounds better by itself at 2 ohms then two of them at 4 ohms. WHAT THE HELL???!!!???
Is this the beginning of understanding what it is to get really involved with car stereo?
My first idea...OH COOL, a 500 watt amp and two twelves that cost a lot of money each...this has to pound!!!

NOW...You mean I have 2 4ohm voice coils and I can get them down to 1 ohm but my expensive amp is only rated at 1.5-4ohms??? And now my one sub at 2 ohms sounds better than two at 4ohms?

Does anyone feel my pain, or am I overboard???

[CBFryman]

how are you getting 1.6ohm from (4) 4ohm loads. 4 4ohm loads can only be wired in 1, 4, and 16 ohms int one load. 2 or 8ohm into 2 loads and 4ohm in 4 seperate loads. series/paralell will wire 2 coils in sereis to give 2 8ohm loads then thoes 2 8ohm loads will be wired in parallel to give one 4ohm load. here is a little diagram i threw togather in like 2min. im too lazy to go searching for one.

[CBFryman]

Oh and when you have 2 wired up it may sound like shit if you have them out of phase. causing cancelation and over excursion. do they share a common air space? if so and they are out of phase it is like playing them freair. and 500w is more than enough to bottom them out free air. make sure that you dont have all of the (+) and (-) connected to the correct post on the amp. also make sure that if you arent running 2 coils on one of the subs out of series. in otherwords go (+)amp to (+) coil 1 then (-) coil 1 to (+) to coil 2 and (-) coil 2 to (-)amp. if you go (+)amp to (+) coil 1 and (-) coil 1 to (-) coil 2 and (+) coil2 to (-) amp then the two coils are fighting each other trying to make the sub move. and if the 2nd sub is wired correctly then it is making this sub fighting agiasnt its self look like it is doing something when really it is acting as a powered pasive radiator with a stiff suspension.

[DigitalSpuder]

Thanks for the diagram...I ran the subs like that yesterday and they sound good now...I am just eager to get them into a nice enclosed box and set up my amp for perfect output.
Thanks again...GOOD DIAGRAM...a lot of people will find these kind of diagrams helpful, I know I did.
Digital