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Cubo 12 + JBL P1220

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Thomas Hosker View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Thomas Hosker Quote  Post ReplyReply Direct Link To This Post Topic: Cubo 12 + JBL P1220
    Posted: 26 September 2012 at 4:51pm
Hi, im fairly new here, believe this is my 2nd topic on the site :)

I have been offered a JBL P1220 on the condition that i build a Cubo 12 to hold the other driver for a friend, so im going to make a matching set of Cubo 12's with the JBL drivers for small 'free party' and bar/pub gigs (these will go with a set of 8" + 1" tops)


My first question is, well.. is this a good idea? ha

Is there anything i should/could change about the cab design to better suit the driver?

Where is it best to crossover/lowpass this sub?

Whats the best way to power 1 of these Cubo's? Best way to power 2?

Heres some info about the driver.. Its a car subwoofer but i dont think this matters, does it?

http://www.manualslib.com/manual/284730/Jbl-P1220.html


Thanks in advance for any help.

Thomas

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Thomas Hosker View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Thomas Hosker Quote  Post ReplyReply Direct Link To This Post Posted: 26 September 2012 at 5:45pm
Just looking at the recommended parameters for the Cubo 12 and the parameters of the driver dont seem to match...


          Recommended           Jbl P1220
Fs       30 - 52hz                  28.65
Qts     0.20 - 0.37                0.45
Vas     50 - 125L                  47.40
Ebp     100+                        63.3

Now i dont know what those number even mean, could someone elaborate and hopefully tell me the affect this will have on the performance of the cab.

Thanks

Thomas
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bee View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bee Quote  Post ReplyReply Direct Link To This Post Posted: 26 September 2012 at 9:21pm
try giving cubo a pm over on fsp.... he is very good at getting straight back to people.....
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bitSmasher View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bitSmasher Quote  Post ReplyReply Direct Link To This Post Posted: 26 September 2012 at 11:54pm
From what I've read the box is fairly forgiving of driver T/S being out of spec, they're so simple you might as well bang a couple together and measure/listen yourself...
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Thomas Hosker View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Thomas Hosker Quote  Post ReplyReply Direct Link To This Post Posted: 27 September 2012 at 5:35pm
Cheers Bee, will do

Yer i think that will have to be the plan bitSmasher, Ill let you guys know how it turned out
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