View Full Version : Box Help!

dunerider650

10-23-2012, 02:27 PM

If anyone could chime in about my box to see if its good or not...would be appreciated. internal net volume is 2.163 the port is a slot port and when it comes into the equation my volume turns into 1.938...as to why it gets lower im not sure. The port measures as follows W=13.5" H=2.5" D=11.5" Comes out to a volume of 388.125 Inches 3 seems weird???? What would this box be tuned to????? Help please guys.

mklett33

10-23-2012, 02:50 PM

If anyone could chime in about my box to see if its good or not...would be appreciated. internal net volume is 2.163 the port is a slot port and when it comes into the equation my volume turns into 1.938...as to why it gets lower im not sure. The port measures as follows W=13.5" H=2.5" D=11.5" Comes out to a volume of 388.125 Inches 3 seems weird???? What would this box be tuned to????? Help please guys.'

The 388.125 cubic inches is the volume your port takes up within the enclosure, it should not be accounted for for the internal net volume. This is why it is saying 1.938. That is the 2.163 cubic feet minus the 388.125 cubic inches (aka .22 cubic feet).

dunerider650

10-23-2012, 03:00 PM

1.943 would be my box volume then. Thanks. Its a bit bigger than recommended size from Alpine 1.4 or 1.8 but close to 1.8. Just one more thing i cant figure out my port...i got the measurements but cant figure out what it would be tuned to or if its even close to being the right size. Its a custom made box which had the type x in it when i got it....box is really thick 1" and its made very very well just not sure it he did the port right or not. Doesn't sound as loud as it should.

mklett33

10-23-2012, 09:16 PM

How much power and what sub?

dunerider650

10-23-2012, 09:44 PM

its getting 1000 watts rms of power from an alpine amp forget model number older v12 model. Sub is an Alpine type X 12" DVC 4OHM. Wired to amp for 2 ohm which the v12 amp puts out 1000rms have the pos to pos and neg to neg on sub then ran to amp for 2 ohm.

kat_black181

10-23-2012, 10:05 PM

4 ohm sub cant be wired to 2 ohm...u have wired down to 1 ohm load. :fyi:

splwj47

10-23-2012, 10:11 PM

4 ohm sub cant be wired to 2 ohm...u have wired down to 1 ohm load. :fyi:

one dvc 4ohm will wire to 2 ohms. 2 dvc 4ohm will wire to 1ohm.

kat_black181

10-23-2012, 10:15 PM

one dvc 4ohm will wire to 2 ohms. 2 dvc 4ohm will wire to 1ohm.

Ahhh!!! Thank u. :-) didn't know this! I knew that first thing I said, but no one ever explained the rest to me. Haha

DoesDad

10-23-2012, 10:31 PM

Ahhh!!! Thank u. :-) didn't know this! I knew that first thing I said, but no one ever explained the rest to me. Haha

Noobs ITT. :uhoh: Anyway, 1.9 cubes is pretty small for a 12" Type X. I know what the specs say but They say 1.75 max. for the Type R and I always thought about 2.5 cubes was good. That X should be bangin' regardless....

kat_black181

10-23-2012, 10:34 PM

Noobs ITT. :uhoh: Anyway, 1.9 cubes is pretty small for a 12" Type X. I know what the specs say but They say 1.75 max. for the Type R and I always thought about 2.5 cubes was good. That X should be bangin' regardless....

Be nice. :-p

DoesDad

10-23-2012, 10:36 PM

Be nice. :-p

If it was anyone but you I would've been probably been a lot more rude. Lol! It's all good... Gotta learn this stuff somehow right?

kat_black181

10-23-2012, 10:40 PM

If it was anyone but you I would've been probably been a lot more rude. Lol! It's all good... Gotta learn this stuff somehow right?

Haha thanks!!! And yes! I'm glad someone tld me or else I woulda just went about thinking the wrong thing and telling people wrong shi*t forever! Lol

DoesDad

10-23-2012, 10:43 PM

Haha thanks!!! And yes! I'm glad someone tld me or else I woulda just went about thinking the wrong thing and telling people wrong shi*t forever! Lol

You got it... Impedance is kind of a tough thing to understand at first till you start looking at wiring diagrams and ****. When are your new subs coming btw? Or have they come?

kat_black181

10-23-2012, 10:45 PM

You got it... Impedance is kind of a tough thing to understand at first till you start looking at wiring diagrams and ****. When are your new subs coming btw? Or have they come?

Andrew at vertex told me they r shipping out tomorrow! I'm insanely pumped to get them. The anxiety is driving me up a wall already!!! Lol

quackhead

10-23-2012, 10:45 PM

Haha thanks!!! And yes! I'm glad someone tld me or else I woulda just went about thinking the wrong thing and telling people wrong shi*t forever! Lol

u aint right.

quackhead

10-23-2012, 10:49 PM

If anyone could chime in about my box to see if its good or not...would be appreciated. internal net volume is 2.163 the port is a slot port and when it comes into the equation my volume turns into 1.938...as to why it gets lower im not sure. The port measures as follows W=13.5" H=2.5" D=11.5" Comes out to a volume of 388.125 Inches 3 seems weird???? What would this box be tuned to????? Help please guys.

my guess is about 54 hz.

DoesDad

10-23-2012, 10:57 PM

Andrew at vertex told me they r shipping out tomorrow! I'm insanely pumped to get them. The anxiety is driving me up a wall already!!! Lol

I think you made a good choice. I'm gonna get out of here. Trampling all over this poor guy's thread....