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View Full Version : 3 12" HDC3's?



JEXTEL
03-30-2008, 08:05 AM
well the time has come for me to get some more bass so im going to run 3 AudioQue HDC3's on 3 hk401sx's..

i did some measuring and it seems like im working with 35"W 15"H 28"D (i dont think i can get a bigger box unless i build it in the trunk, cause i still need room for batteries and amps and crap)

with those specs the box will be 6.93 cu.ft. will that be all right for 3 12" hdc3's?

next, is birch the lightest wood? because weight is becoming an iusse? and how light is it? compared to MDF

mcbuggin
03-30-2008, 11:01 AM
balsa is lighter than birch but if weight is an issue why not fiber glass with a birch frame and yes birch is lighter than mdf

350zspl
03-30-2008, 11:06 AM
trupan is lighter than mdf

btdickey99
03-30-2008, 11:13 AM
well the time has come for me to get some more bass so im going to run 3 AudioQue HDC3's on 3 hk401sx's..

i did some measuring and it seems like im working with 35"W 15"H 28"D (i dont think i can get a bigger box unless i build it in the trunk, cause i still need room for batteries and amps and crap)

with those specs the box will be 6.93 cu.ft. will that be all right for 3 12" hdc3's?

next, is birch the lightest wood? because weight is becoming an iusse? and how light is it? compared to MDF
Box seems a little small, but could work..... is that 6.93 cu ft after sub and port displacement?

BrianChia
03-30-2008, 05:35 PM
You might get more for your money running two 12's with greater box volume and bigger port area.

SeanDub
03-30-2008, 05:42 PM
Yeah 6.93 cubic feet gross net probably is not enough to properly run 3 12s ported. 2 12s ported, 3 10s ported, or 1 15 ported - those are you best options for that space. The 3 10s have the most cone area, but just barely more than the 2 12s.

You could get away with 3 12s ported in that space, but each would have to have a good bit less than 2 cubes net, and an undersized port.

Skip01
03-30-2008, 05:44 PM
Mobieus used Trupan for my 8cu box.....and i can lift it by myself and put it in myself

JEXTEL
03-30-2008, 09:00 PM
Mobieus used Trupan for my 8cu box.....and i can lift it by myself and put it in myself

well how is your 12's doing in 8cu? i think 6.93 will be enough..(hopefully and i already running 2 12's that why i want to set it up to 3..

JEXTEL
03-30-2008, 09:01 PM
balsa is lighter than birch but if weight is an issue why not fiber glass with a birch frame and yes birch is lighter than mdf

balsa? how strong is that? and i dont know how to glass..

JEXTEL
03-31-2008, 01:26 PM
well i remeasured and i think i can squeeze in 7.45cu ft box but i know this thing will weight ALOT! im balsa is as light as you say it is..

35W 15H 30D tuned to 35hz with 100sq.in. of port area