350zspl

iTrader: (3)

well is not bad for sealed on size

does look a bit small for ported

appears to be a JL 4 ch 450-4 on mids and highs

and jl on lows but can't tell how big or if that is the only bass amp

i would like to hear more from the owner

Jnoland

[QUOTE=350zspl]that 144.1 that you ? yes

ac mic? not shure
tl mic?

mic on dash or mic by kick panel? by kick panel

legal or outlaw? outlaw

you are running 2 13" W7 ported ?
amps for low how many , what kind , what power?
2 10" W7 ported
2 JL 500/1 amps

factory alt? yes

2nd battery? noQUOTE]

Jnoland

Yes the 450/4 is for the components, i was actually just under 1.4 cu. ft. per sub on the enclosure (thats also taking into account the displacement of the sub itself) I extended the length of the port to hopefully compensate for the lack of desired air space wich idealy would have been 1.5 cu. ft. per sub. the following pics show me test fitting the enclosure in the car and also the inside of the box showing the port before i lengthened it. if you guys have any more ?'s or want more pics let me know.

350zspl

iTrader: (3)

[QUOTE=Jnoland]


if you did 144.1 and it was an audio control mic then you would yeild about about 142 on a term lab mic

on the other hand if it was a term lab mic than you would yeild about 146 on an audio control mic


i am gonna db drag on April 15 let you know were i am at

your running around 1000 watts to 24 "
i am running about 2300 watts to 12"

interesting to see the difference


are you running 0 awg ?


if you run a JL 1000/1 to each sub you can get your score up by 2-3 db

Jnoland

yep that will be a very interesting comparison, i don't think i will be stepping up to the 1000/1 amps any time soon although that would be an awesome improvement. I ran 0 awg to a distribution block located below one of the 500/1's where it splits to three 4 awg for each amplifier. I have no idea wich mic was used although now knowing what you told me i definately want to find out. what are the rest of the specs on your setup?

JimRHIT

iTrader: (6)

Correction ... he is running 1000W to ~16"

350zspl

iTrader: (3)

Pioneer HU # AVH 5700 DVD
Stinger 0 AWG
Stinger RCA
Stinger 1000 Dry Cell Red Label
Rockford Fosgate 2 CH x 275 watts per channel Type RF X3.A Amp
Rockford Fosgate Power Series T20001 BD MONO 2200 watts at 2 OHMS & 3000 @ .75 OHMS
Rockford Fosgate Type RF Components # X162S


Daily Driver PRO BOX Slot Port @ 45 Hertz with Rockford Fosgate 1 each T2 12" DVC 4 OHM 1000 rms 2000 Peak
i feed this 2200 watts @ 2 OHMS for Daily

SPL BOX RF T2 to Spec Power Series Enclosure 3/4" MDF Slot Port to 40 Hertz with 1 each Team RF 12" DVC 1.5 OHM 2000 RMS 4000 Peak i feed this 3000 watts at .75 OHM


180 amp alt on order and in route
2nd Stinger dry cell 1000 red label on order in route



T40001 BD to come

350zspl

iTrader: (3)

re-corrected
he is running 1000 to 20 "

JimRHIT

iTrader: (6)

no

12w7 Sd = 550cm^2
2 x 12W7 Sd = 1100cm^2

pi*r^2 ... solve for r ... r = ~37.5cm or 14.75"

Cone for 14.75" is about ~ a 16" sub.

/Corrections

JimRHIT

iTrader: (6)

edit for me = retard .. he is running 10W7s

386 cm^2 per driver ... so 772

~31.5cm = r = 12.5"

So 14" cone

350zspl

iTrader: (3)

they are 10"

JimRHIT

iTrader: (6)

see above

JimRHIT

iTrader: (6)

either way ... your math is plain wrong

350zspl

iTrader: (3)

no math

he has 2 each w7 10" subs

more or less he is using 20 " of cone

i have no idea what you are talking about , but getting the feeling you are a finger pointer and want to say that i am wrong

JimRHIT

iTrader: (6)

I am finger pointing because you ARE wrong.

2 10" cylinders that are 2" tall do not hold the same volume as one 20" can that is 2" tall.

This is about volume displacement. Surface area x stroke (my random 2" number) ... he does NOT have a 20" cone area ... its more like a 14" cone.

alan86

iTrader: (17)

wow 2 w7s is insane. good work.

350zspl

iTrader: (3)

like i said i have no idea about your equation

i am saying this kid has 2 each 10" subs

these subs in an spl competion = 20 " of cone

i have no idea how to figure volume nor have i ever had the need


if you understand what i am saying when comparing mine to his in an spl comp which is what i and he are talking about

i say he has 1000 watts more or less and he is pushing that power to 2 each 10" subs so when he enters his car it would be outlaw hatch and most likely
19" to 24"




and i am saying mine is about 2200 watts more or less to 1 each 12"
mine is outlaw hatch 0" to 18"


i said it would be an interesting comparision


i can't explain what i meant any better


he and i know what i mean


also the thread is titled 12" w7 than he respondes to me saying 10" w7

Driven1

iTrader: (2)

Off topic from the debate... but from the pics it looks like you cut chunks out of your rear sway to fit the enclosure in?

Jnoland

yep i shure did, had to make a round corner square. i just now noticed my error in the title too, they are in fact 10" subs.