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View Full Version : Help needed with rockford fosgate box for 2 T2's.



romans535
06-27-2008, 01:52 AM
does anybody have an idea on the right measurements for a double ported box for 2 RF T2's, I'm running them with 2 RF T1000.1bd amps. I need to make sure I have the right box and the right air space.
thanks

psych0ticnemes1
06-27-2008, 10:56 AM
You have a PM.

NissanKicker
06-27-2008, 10:59 AM
12s or 15s?
* 3.5 cuft for the 12s ( each )
* 5 cuft for 15s ( each )

bumpin buick
06-27-2008, 11:04 AM
12s or 15s?
* 3.5 cuft for the 12s ( each )
* 5 cuft for 15s ( each )

? after displacement, seems a little bigger than needed

NissanKicker
06-27-2008, 11:08 AM
Bigger is better...
... LOL!

Probably could go lower.. I just like to go over needed/recommended

romans535
06-27-2008, 03:20 PM
12s or 15s?
* 3.5 cuft for the 12s ( each )
* 5 cuft for 15s ( each )

sorry, yes their 12's

miker
06-27-2008, 03:29 PM
Bigger is better...
... LOL!

Probably could go lower.. I just like to go over needed/recommended


I like my subs to bottom out too. :crap:

NissanKicker
06-27-2008, 03:30 PM
Hmmm... I'd say 4cuft @ ( whatever hertz is goin' to suite you - genre of music? What are you aiming for, " SQL " or " SPL " or " Just to sound good - like Probox rocks enclosures "
....

NissanKicker
06-27-2008, 03:32 PM
I like my subs to bottom out too. :crap:

^^^^^ :confused:
... There's things you can do to prevent that.... ;)

miker
06-27-2008, 03:37 PM
^^^^^ :confused:
... There's things you can do to prevent that.... ;)


Well, by decreasing the power you give it..

romans535
06-27-2008, 03:44 PM
Hmmm... I'd say 4cuft @ ( whatever hertz is goin' to suite you - genre of music? What are you aiming for, " SQL " or " SPL " or " Just to sound good - like Probox rocks enclosures "
....

the box you see there is the one I had custom made
In the RF box wizard I put in the measurements and it says something like 6.7 cu ft
should i divide that by 2 for each sub http://www.rockfordfosgate.com/rftech/box_wizard/box_wedge2_out_on.gif

NissanKicker
06-27-2008, 04:01 PM
That'll be ~3.35 before sub & port displacement...
... So, sure.

romans535
06-27-2008, 04:41 PM
That'll be ~3.35 before sub & port displacement...
... So, sure.
the T2's have a 2.25 cu ft recommendations, so do I have too much airspace

NissanKicker
06-27-2008, 04:53 PM
Nope...
The sub is gonna take .12 - .16cuft
.. And the port is probably gonna take maybe .6 - 1.2cuft

romans535
06-27-2008, 05:35 PM
Nope...
The sub is gonna take .12 - .16cuft
.. And the port is probably gonna take maybe .6 - 1.2cuft

thanks for the info, the freq should be 40 hz , thats set on the amp and how about the bass nob