Box for maaaa avalanche

 

Gold Member
Username: Hdubb

Farmington, Nm Usa

Post Number: 1515
Registered: Nov-04
hey what would you guys think if i threw my ava 15 in a 6 cu ft box, vented. i havent got the tuning yet, to be honest im not really sure what it will be tuned to....sean and joe i need your help
 

Gold Member
Username: Insearchofbass

Post Number: 2032
Registered: Jun-04
what type of sound do you want out of it sq spl or mix?
 

Gold Member
Username: Hdubb

Farmington, Nm Usa

Post Number: 1516
Registered: Nov-04
here are the internal measurements
34x22.5x15
my port is going to be an L shape which is 4.5 wide and i think 8 inches long, (if that makes any sense) and my vent opening is goin to be 5 inches and at the choke area 4.5. well i havent made it yet so this can change.
 

Gold Member
Username: Hdubb

Farmington, Nm Usa

Post Number: 1517
Registered: Nov-04
im looking for deep low bass and sq, i want to hit low notes like 27hz, i know it will be loud so im not really worried about that, i just need to get my port tuning low enough, i dont know the formula to get it though
 

Gold Member
Username: Insearchofbass

Post Number: 2033
Registered: Jun-04
do you know the displacements for that sub? I came up with 6.64 cf for those measurements
 

Gold Member
Username: Hdubb

Farmington, Nm Usa

Post Number: 1518
Registered: Nov-04
umm no let me check. couldnt find it, its 7.875 deep though that might help.....
 

Gold Member
Username: Insearchofbass

Post Number: 2034
Registered: Jun-04
ok if we do 34 x 20.5 x 15 internal well have 6.05 cubic feet and assuming it takes up .20 for sub displacement were where i want to be 5.85 cf
 

Gold Member
Username: Hdubb

Farmington, Nm Usa

Post Number: 1519
Registered: Nov-04
can you find out my tuning? and what is the equation for that
 

Gold Member
Username: Insearchofbass

Post Number: 2035
Registered: Jun-04
is the 15 number your depth?
 

Gold Member
Username: Hdubb

Farmington, Nm Usa

Post Number: 1520
Registered: Nov-04
heighth, my depth is 22.5, its a biggin
 

Gold Member
Username: Hdubb

Farmington, Nm Usa

Post Number: 1521
Registered: Nov-04
oh and im using 3/4 mdf
 

Gold Member
Username: Insearchofbass

Post Number: 2036
Registered: Jun-04
lets make your port 11.5 high and 2 inches wide your internal depth will tune the port to 20 hz since its 20.5 deep plus .75 for the wood comes to 21.25 inches deep at 5.85 cf. after sub displacements this is using 34 x 20.5 x 15 internal (35.5 x 22 x 16.5 external using .75 mdf) what kind of power you going to run to this
 

Gold Member
Username: Hdubb

Farmington, Nm Usa

Post Number: 1522
Registered: Nov-04
ha i think it is around 28hertz good enough for me
 

Gold Member
Username: Insearchofbass

Post Number: 2037
Registered: Jun-04
with a box this big and a nice sq curve id do the 20 hz tune....plus i wanna hear from you what 20 hz sounds.... slash.. should i say feels like lol
 

Gold Member
Username: Hdubb

Farmington, Nm Usa

Post Number: 1523
Registered: Nov-04
oops didnt see thqt post when i made mine. well i put my numbers into a calc at carstereo.com and it tol me that it will be tuned to 28 hertz which i feel is low enough, do you? and im goin to be using my brutus 1500, but ill water it down so i down f*ck it up, no 1500 watts to it,
 

Gold Member
Username: Hdubb

Farmington, Nm Usa

Post Number: 1524
Registered: Nov-04
actually i think i might tune it that low.
 

Gold Member
Username: Hdubb

Farmington, Nm Usa

Post Number: 1525
Registered: Nov-04
well im not sure about 20 but 25 i only need to add on 10 inches to my port area
 

Gold Member
Username: Insearchofbass

Post Number: 2038
Registered: Jun-04
i saw the 1500 only has like a 50 amp fuse am i right? if so your prob only going to be putting a true 432 watts into it
 

Gold Member
Username: Insearchofbass

Post Number: 2039
Registered: Jun-04
opps its calss d so its 576 watts at 50 amps at 14.4 volts 20 percent loss
 

Gold Member
Username: Insearchofbass

Post Number: 2040
Registered: Jun-04
i found it its 80 amp fuse ill do the math
 

Gold Member
Username: Insearchofbass

Post Number: 2041
Registered: Jun-04
1152 230.4 at 20 percent loss equals 921.6 watts but the amp never reaches full fuse rating so your fine
 

Gold Member
Username: Insearchofbass

Post Number: 2042
Registered: Jun-04
my guess is your going to loose some power anyway from voltage loss so youll be fine at 20 hz and it will be a very balanced tune for the box
 

Gold Member
Username: James1115

Wilton, Ct

Post Number: 3107
Registered: Dec-04
Hunter if you can tune it to 20htz with a FS of 15.7 you are gonna want that 20htz tune trust me:-)
 

Gold Member
Username: Insearchofbass

Post Number: 2057
Registered: Jun-04
yeah and i want you to tell us what 20 hz is like. Its gonna shake shake shake the inside of the car im sure. lol Im gealous now. I want to experience the 20 hz effect.
 

Gold Member
Username: Hdubb

Farmington, Nm Usa

Post Number: 1526
Registered: Nov-04
ill tell you guys what, ill build a few boxes and i will do some comparing :-) 20, 25, and umm 40 and ill give some results
 

Gold Member
Username: Insearchofbass

Post Number: 2136
Registered: Jun-04
hunter.....just do swappable ports on that box and youll only have to build one box...or you could do my adjustablable airspace box along with sealed and ported options
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