31 replies to this topic

[SHANE G !!]

subs are pp-sw150Max Power Rating 1500 Watts
RMS Power Rating 625 Watts
Frequency Response 20Hz - 1.5kHz
Impedance 2 x 2 Ohms
Sensitivity 91 dB
Compliance (Cms) 91.005
Cone Area (Sd) 754.77
D.C. Coil Resistance (Re) 3.6 (1.8 x 2)
Electrical Q (Qes) 0.397
Force Factor (Bl) 21.715
Free Air Resonance (Fs) 33.620
Linear Excurson (Xmax) 30
Mechanical Excursion (mm) 9
Mechanical Q (Qms) 2.643
Total Loudspeaker Q (Qts) 0.345
VAS (L) 73.618
VAS (CuFt) 2.6
PP-SW150
Volume (litres) 60
Volume (cu.ft.) 2.2
Port diameter 101mm/4”
Port length 350mm / 13.75"
Tuned frequency (Hz) 38.5
Sealed
Volume (litres) 45.5
Volume (cu.ft.) 1.6
Tuned frequency (Hz) 80
..what would be the best box for volume but also music...
each will have its own amp 1100wrms ea
the vehicle is a vx wagon

Edited by sostok, 26 January 2012 - 09:05 PM.

[D34M0N.inc]

And????

[Tiger]

^^^ x 2


So... i'm under the impression you WANT to use these subs for a project, yes?

They have the T/S parameters to have some fun with for a groundpounder. How many subs have you got/wanting top purchase? Car it is/there are going in? Have you matched it/them to an amp? And what do you want it to bang out.... get low? Or get loud?

[ubernoob]

I'm guessing at the box volume he has three subs, but yeah the post isn't the clearest.

[Carr]

The problem I see in the image is that it shows the box volume as 7 litres. You will need to put the measurements in mm not cm. That will change everything.

The other info that Tiger mentioned would also be helpful.

[D34M0N.inc]

It says 2 15's in the program so it's not 3, but guessing he is just asking if the box is ok for the 2 15's most likely he meant cm's and its 70L

[ubernoob]

It says 2 15's in the program so it's not 3, but guessing he is just asking if the box is ok for the 2 15's most likely he meant cm's and its 70L

Ahhh yes so it does, sorry.

[SHANE G !!]

sorry guys posted late..my brain had already gone to bed...its 2 subs and 2 amps 1100wrms ea( 1 amp per sub) its supposed to be 7 cu ft.....its in a vx wagon..i left alot out of edited post sorry guys
thanks for your help and patience

geez what a great start...what a dork lol..sorry again guys

[D34M0N.inc]

Isn't 7 cubes a bit big with that sort of power?

[SHANE G !!]

yeah thats what i thought..as i say im new to this sorta thing in the sense of not goin by supplier spec boxes....in my head 120ltrs was more toward what id need for a dual ported box....hence the cry for help lol

[D34M0N.inc]

I'd prob go 3cubes per sub max myself.

[SHANE G !!]

I'd prob go 3cubes per sub max myself.

ok cool ill work on that then ..thanx

[SHANE G !!]

 fusion 15 x 2 ported box.docx   32.09K   11 downloads ...perhaps this would work

[D34M0N.inc]

Looks good, is this for SPL only? Or do you want to play music to? As the port is tuned rather high. For the best of both worlds your best with a 35hz tuning i have found.

[SHANE G !!]

Looks good, is this for SPL only? Or do you want to play music to? As the port is tuned rather high. For the best of both worlds your best with a 35hz tuning i have found.

ok ill change ports to suit 35hz ..your'e the man thanks for your help and patience

[SHANE G !!]

ok cool changed the port to make it 35.2hz ..so id say that be pretty much where i need to be ..thanks again
would a couple of 2" sq posts inside the box to brace it cause any real issues ?

[D34M0N.inc]

Nah bracing never hurts if your worried you can calculate the area of the wood that takes up space in the box but it won't have much if any effect on the sound.

[SHANE G !!]

Nah bracing never hurts if your worried you can calculate the area of the wood that takes up space in the box but it won't have much if any effect on the sound.

ok cool thanks heaps for all your help..now to get things started..

[D34M0N.inc]

No problem man should sound nice

[SHANE G !!]

No problem man should sound nice

..i realise its probably a "how longs a piece of string" question ..but what sorta volumes do you think itd be capable of (roughly )..and if i get it right lol..and with the 2 pairs of pp splits in the front..i'd think theyd keep up ?!

[D34M0N.inc]

What sort of car is it going in?

And the splits should keep up if your powering them right.

[SHANE G !!]

What sort of car is it going in?

And the splits should keep up if your powering them right.

its in a vx wagon..and the splits are getting 150wrms ea(300 per
door)

[D34M0N.inc]

Yeh the fronts should be fine to keep up as you will prob do a 140db or so. I'd eventually get 2 more of them and run 2 subs per mono with the 4 subs up a big port facing the tailgate.

But start small and if you want more then do the above idea

[SHANE G !!]

Yeh the fronts should be fine to keep up as you will prob do a 140db or so. I'd eventually get 2 more of them and run 2 subs per mono with the 4 subs up a big port facing the tailgate.

But start small and if you want more then do the above idea

..ok awesome...thanks heaps..although you got me thinkn bout the 2 more subs already lol....uhoh...

[SHANE G !!]

testing image post..sorry

Edited by sostok, 29 January 2012 - 04:44 PM.

[D34M0N.inc]

You got the room, you wanna get loud? Go all out i say lol, i squeezed 6 12's in a removable box in a 4m long car lol.

[SHANE G !!]

You got the room, you wanna get loud? Go all out i say lol, i squeezed 6 12's in a removable box in a 4m long car lol.

lol i wish...ive still gotta get a pram in the car lol...but once i get the missus a new car then i can go nuts ...

[D34M0N.inc]

Wall it then you will have room for a pram All good man have a play with 2 first just build it already

[SHANE G !!]

Wall it then you will have room for a pram All good man have a play with 2 first just build it already

now to find a place to get my timber cut ,i've printed my box panel sizes out and ill get myself sum screws and some glue and begin the mission

[D34M0N.inc]

I get mitre 10 to do mine as they cut it for free to size within 1-2mm. Or Any cabinet maker.