2 15's in a 3000GT?

[Norcalracer283 10+ year member]

Is this possible.....were looking to get really loud sealed with 2 15's. Considered an single 18" XXX so that kinda gives u an idea of the sq and spl the kid is looking for.....he wouldnt mind being louder than that single XXX though.....So, suggestions on 2 15's are more than welcome.... My guess is about 1200 watts to each, maybe 1300

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[3kgt711 10+ year member]

Is this possible.....were looking to get really loud sealed with 2 15's. Considered an single 18" XXX so that kinda gives u an idea of the sq and spl the kid is looking for.....he wouldnt mind being louder than that single XXX though.....So, suggestions on 2 15's are more than welcome.... My guess is about 1200 watts to each, maybe 1300

sq and spl? Eclipse all the way. I have had various setups in my car: 2 12" Eclipse Aluminums, 1 15" Eclipse Titanium, 1 15" Eclipse Titanium PRO. They all bang harder than is necessary but it is extremely precise every note, every time. PM me or email lonestar711@sbcglobal.net If he is interested or needs help seeing as how I have a 3kgt also. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[req 5,000+ posts]

2 adire tempests. SQ = awesome SPL = loud

id give that a try in a heartbeat. now what if they introduce XBL^2 to these next year =D

they are DVC8, so remember that when getting an amp. 2ohm is as low as 2 of them will go i think...

 

[phsballin4life 10+ year member]

well is u want jus spl get it but if u want a dialy driver dont get 15's. research shows u have to b up to 24 ft. away to get the full effect of a 15" woofer. so unless u have a superstretch dont do it lol. id say go with 2 L7 12's for loud and 2 jl w6v2 12's for sq if u got the cash

 

[JimJ 5,000+ posts]

??

come again //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[JimJ 5,000+ posts]

research shows

what research? Give me annotations, studies, something.

u have to b up to 24 ft. away to get the full effect of a 15" woofer.

I think you're trying to say that sound doesn't propagate well until it reaches a full wavelength (basically the distinction between a near field and far field, at least in RF). The problem with this is that at audio frequencies, they cover such a huge spectrum that specific wavelengths are practically irrelevant. Say, for example, that you have a 50Hz sine wave. That waveform is going to have a full wavelength of:

lambda = C/F

where C is the speed of light (3x10^8 m/s)

F is the frequency in cycles/sec (Hz)

comes out to around 22 feet...but these number can vary as much as 56 feet (20Hz) or 14 feet (80Hz). So where does 24 come into play? Besides, what's the "full effect" of the woofer? If you're in the driver's near field, are you getting less than the full effect?