spl installs

[liam_b]

got the scores from last night

BOOT INSTALLS:
======================

Liam_B - 2x JBL GT5 12" - Ported - 1100wrms
Total Average (((Propper Droppers))) Score = 137.0dB

Peak= 143.3dB @ 48hz
40hz= 140.0dB
33hz= 136.1dB
25hz= 132.4dB
20hz= 133.1dB

======================

Liam_B - 1x Pioneer 12" SPL D4 - Ported - 1100wrms
Total Average (((Propper Droppers))) Score = 132.3dB

Peak= 138.9dB @ 28hz
40hz= 128.9dB
33hz= 136.4dB
25hz= 133.4dB
20hz= 123.9dB

======================

Liam_B - 1x JBL GT5 12" - Ported - 747wrms
Total Average (((Propper Droppers))) Score = 136.4dB

Peak= 140.4dB @ 45hz
40hz= 138.4dB
33hz= 137.2dB
25hz= 133.9dB
20hz= 131.9dB

[Coonper]

Good score that is mate!

But why is it peaking so high? I thought you were tuned to like 30hz?

[liam_b]

its tuned 35hz but as you no it will normaly be higher than what its tuned to i think it might be because i have it facing the roof but il be making some port blockers to tune it down about

[webby]

did you design the box boxes using the re box calculator or winISD or somthing similar because i know the re box calculator is off by about 10% it makes the ports too short causing higher tuning. i use it for ploting out box sizes but then use winISD to get the vent length

[liam_b]

the lad hu designed the boxes used the re box calculator

[webby]

if you download winISD its great free program and fairly accurate it give you things like cone excursion at different freq and power inputs port air velocity etc check it out

[liam_b]

kl il have to do that just making some port blockers at the moment 25hz ftw

[Coonper]

Originally Posted by liam_b

kl il have to do that just making some port blockers at the moment 25hz ftw

Nice and low!

Gotta love the feeling of hard hitting low bass! 30hz for me!

[liam_b]

yep nout better than when the bass kicks in and you cant breath lol

[Coonper]

Originally Posted by liam_b

yep nout better than when the bass kicks in and you cant breath lol

In my case, Nout better than when the bass kicks in and the car cuts out!

New battery(s) ftw!

[liam_b]

low powerd battery ftl i should be getting my big yellow soon only wights 46kg my car wont be going up hills

[liam_b]

what final ohm does this wiring give me 6 4ohm svc subs

[Coonper]

I think that would be 0.25 or 0.5 ohms... Dont hold me to that though.

If you are really struggling i'll get the calculator out!

[liam_b]

umm i need around 2ohm so think il just wire it up like that and get volt meter out il post some pics of the new install later today too

[Coonper]

Originally Posted by liam_b

umm i need around 2ohm so think il just wire it up like that and get volt meter out il post some pics of the new install later today too

You will have to wire half in series and half in parallel i think mate.

Does this mean you have bought all 6 gt5's??

[liam_b]

Originally Posted by Coonper

You will have to wire half in series and half in parallel i think mate.

Does this mean you have bought all 6 gt5's??

yep waiting for the other 4 to be deliverd today

[Coonper]

Originally Posted by liam_b

yep waiting for the other 4 to be deliverd today

Nice one!

Next time im in brixham i wanna hear this!

What boxes you putting them im?

You gonna make 4 more 1.75cuft boxes??

[liam_b]

yep 6 1.75 boxes for comps then 4 for when i have people in the car gonna be a single seat in the back the boom seat lol

[Coonper]

That is gonna be fucking immense mate! Fair play to ya! 150db's here we come!!!

Vids Ftw!!!

Just one thing...

Will you have enough power to drive them from just a jbl 1201.1? Or have you bought a few of them?

[liam_b]

im going to use to one amp for a cuple weeks witch is gonna be giving them around 185 rms each witch thay should still play pretty well as it does take much to move them but once i get back from holiday il be buying another 2 jbl 1201.1 so there all getting 550 each