Re Sx

 

Silver Member
Username: Shadylimitedx

Pgh, Pa Usa

Post Number: 500
Registered: Apr-05
iam makin a 4.5 cuft box an i wanna now what port will b better 2 use 2 get the best should i go with the circle port/tube or the slot port it will b tuned @ 32hz an wit the circle port u can change diffrent hz tunes
 

Silver Member
Username: Shadylimitedx

Pgh, Pa Usa

Post Number: 502
Registered: Apr-05
the sub is goni 2 b the 15 re sx
 

Silver Member
Username: Shadylimitedx

Pgh, Pa Usa

Post Number: 504
Registered: Apr-05
?
 

Gold Member
Username: Southernrebel

Monroe, Louisiana USA

Post Number: 2016
Registered: Mar-04
w/ 4.5cuft (after port and sub displacments) i would go w/ 50sq inches of port...slot port.

try building a 5.25cuft (gross) box w/ 50sq inches of port, 23" long. that will give you 4.5cuft net tuned to 32hz...it should slam.

(my box is roughly this size w/ my daily port installed...its great)


if you go w/ a round port...try either 1 8" pvc or 4 4" ports.
 

Silver Member
Username: Shadylimitedx

Pgh, Pa Usa

Post Number: 507
Registered: Apr-05
biggest i can go is 4.5 cause iam goin 2 b puttin the box in from the insid eof the car threw the trunk cause i had my dad cut out around the bac seat metal frame an its 16h 34w 18d or i can go 19 or more but wat will slam more a slot port or a tube port an just gussin marshall i no u wont no but how many db u think it will hit wit 1 re 12.1 an the 15 sx an whole car in sound dampin high 140s port tuned at 32hz i go can go more deeper if i want
 

Silver Member
Username: Shadylimitedx

Pgh, Pa Usa

Post Number: 508
Registered: Apr-05
i mean from the inside of the car in2 the trunk
 

Silver Member
Username: Shadylimitedx

Pgh, Pa Usa

Post Number: 509
Registered: Apr-05
tolk new messaurments i can go 16h 34w 21d so thats 5.318cuft an ill go wit 2 4inch ports both 9.50 inch long 32 hz tune is that go0d
 

Gold Member
Username: Southernrebel

Monroe, Louisiana USA

Post Number: 2020
Registered: Mar-04
16"x34"x19" external measurements w/ 3/4" mdf would be 4.77cuft internal.

try 3 4" pvc ports 20.8" long. the box will work out to roughly 4.15cuft after all displacments. (2 4" ports, 11.8" long will work too...but you may get some port noise w/ only 2)

^^^this will tune the box to 32hz^^^

you may be able to do ~140dB w/ this box...but then again, maybe not. when you tune low like this you dont get huge spl gains like you would if you tune the box to peak at the vehicles res. freq. (ex...i so ~140 w/ my daily port in, but when i put my 46hz port in i gain 8db+ for spl comps)
 

Silver Member
Username: Shadylimitedx

Pgh, Pa Usa

Post Number: 510
Registered: Apr-05
ill go 16h 34w 21d an tune it at 32hz wit 2 4inch ports an i can change the ports from 26hz-----how high i want so u think it will b go0d so ill have changable ports an should i place the ports 1 on each side at the bottom right by the wall an what ports r better tube or slot u should get on aim an aim me @ SHADYLIMITEDX
 

Silver Member
Username: Shadylimitedx

Pgh, Pa Usa

Post Number: 515
Registered: Apr-05
marshall how didi u get ur cars fre. did u use a seald box an get ur loudess hz an tune ur box 5hz lower than that cause iam goni 2 make the box i said above an make alot of ports outa pvc pipe so ill have all kinds of diffrent tunes an that will b sweet thankx 4 ur help
 

Gold Member
Username: Southernrebel

Monroe, Louisiana USA

Post Number: 2028
Registered: Mar-04
yea...you can use a sealed box to get a good idea of your cars res freq. (just get on a TL w/ it)
 

Silver Member
Username: Shadylimitedx

Pgh, Pa Usa

Post Number: 516
Registered: Apr-05
i anit got no 600 2 buy 1 an i cant take my car anywhere cause its all apart cause the sound deadin so the seald box will b go0d i find the loudess hz an i tune it 5hz lower an how do u like my port idea
 

Silver Member
Username: Shadylimitedx

Pgh, Pa Usa

Post Number: 517
Registered: Apr-05
i think iam goin 2 make 2 ports for 26hz threw to the cars fre. thats alot of ports lol an ill use the cars fre. 1 for spl an find da best 1 i like 4 daily
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