PDA

View Full Version : Just Got off phone with Kicker



xpl0it
06-20-2006, 12:41 PM
For my 11.3 cubic foot box they highly recommended 38hz over anything else and nothing under 37hz. They also suggested not to use a single chambered box but instead chamber off each sub. If they are all shared then their tuning frequencies will change because they are different lengths away from the port supposedly. Would any of you still believe a shared box would still work?

project f-150
06-20-2006, 12:47 PM
Divide the port area and put it one on each end. actually wait a minute dont the kicker pre-fabs come single chamber with only one port?

xpl0it
06-20-2006, 12:48 PM
I'm not sure man. But that's just what he suggested. Hmm

project f-150
06-20-2006, 12:54 PM
I just took a quick look at kickers website and the comps. and cvr's both come in a single chamber single port box but i didnt see the L series boxes on the site. So I dont knwo what the guys talking about.

xpl0it
06-20-2006, 01:07 PM
Yeah, but maybe he was recommending chambering them off since I have 4 subwoofers.

project f-150
06-20-2006, 01:11 PM
ohh 4 woofers... more than 1 amp?

Fast1one
06-20-2006, 02:29 PM
^^^^Looks like hes going to run one Hifonics....

Running all four subwoofers in a single chambered box shouldnt make an audible difference in tuning frequency since they will all be wired together to one amp....

HOWEVER, running seperate chambers per pair or per sub will add crucial bracing for that huge box....yes you WILL need bracing....

project f-150
06-20-2006, 03:49 PM
^^^^Looks like hes going to run one Hifonics....

Running all four subwoofers in a single chambered box shouldnt make an audible difference in tuning frequency since they will all be wired together to one amp....

HOWEVER, running seperate chambers per pair or per sub will add crucial bracing for that huge box....yes you WILL need bracing....

Umm yeah, what he said!!

adio
06-20-2006, 03:56 PM
38 hz??? wow

psych0ticnemes1
06-20-2006, 03:59 PM
38 hz??? wow

talk about a fart cannon...

9512ds
06-20-2006, 04:00 PM
talk about a fart cannon...


yep

adio
06-20-2006, 04:11 PM
why not try 32 - 34Hz?

xpl0it
06-20-2006, 05:41 PM
Too low for the L7s, they have massive dropoff. All that I state is coming directly from the Kicker rep I talked to today. Polecat has also helped.

vetkilr
06-20-2006, 05:42 PM
why not try 32 - 34Hz?
I tried 30-32 and sealed is actually louder in my car then ported that low.

mazdakid
06-20-2006, 07:59 PM
I tried 30-32 and sealed is actually louder in my car then ported that low.
what setup was this?

Fast1one
06-20-2006, 08:03 PM
what setup was this?IIRC he was running two MD2s on two 12 06 L7s

xpl0it
06-20-2006, 09:39 PM
For some reason Kickers get explosively loud in applications in which tuning freq is around 36-42hz, but I'm trying to stay on edge to where I have some low extension, but the insanity L7s can deliver. I can still stay +2dB at 40hz, +3.6dB at 45hz,+4.71dB at 50hz, +5.3dB at 55hz, +5.4dB at 60hz, +5.25dB at 65hz, +5dB at 70hz.... and so on. If I tune around 34hz, my response immediately drops to a max of +3dB or so around 50-55hz.

Pyro_By_Nature
06-20-2006, 10:48 PM
You know, not everyone listens to music that peaks in that area.I know, I actually like the sound of a 38-40hz tuning when listening to rock/metal/SOME rap.But for most part, rap sounds like donkey ballz on it.But I hardly listen to rap, so meh.

It's not right to completely rule out a tuning, ever ;)

Pyro_By_Nature
06-20-2006, 10:49 PM
You're not factoring cabin gain or impedence rise into your little numbers.

vetkilr
06-20-2006, 10:59 PM
what setup was this?
http://i7.photobucket.com/albums/y293/vetkilr/car3.jpg

xpl0it
06-20-2006, 11:05 PM
You're not factoring cabin gain or impedence rise into your little numbers.


True, I've looked at impedence rise though, it's largest around 55hz. I'd say 75% of rap tends to be in the 40-65hz range. I'm guessing I'd be alright to listen to rap, because that's all I listen to in my car.

xpl0it
06-20-2006, 11:08 PM
My friend has 2 12" Directed subs off an RF 1001bd amp in a 3.0 cubic foot enclosure tuned to 40hz and it doesn't honestly sound terrible. It doesn't get too low, but it's loud and doens't sound like crap.

PhatTonyDeMarco
06-20-2006, 11:09 PM
True, I've looked at impedence rise though, it's largest around 55hz. I'd say 75% of rap tends to be in the 40-65hz range. I'm guessing I'd be alright to listen to rap, because that's all I listen to in my car.
You dont know what your impedance rise actually is, until you clamp it.

Graphs and such in enclosure calculators are hardly accurate, so dont rely on those numbers...

xpl0it
06-20-2006, 11:47 PM
Alright, even when it comes to frequency response?