here is what I am currently working on, any help is appreciated.
my box is currently SEALED chamber (4) for 4 12"s.
total box dimensions are as follows:
30" W X22.5" Deep at top, 25.5" deep at the Bottom
13" Height,
using 5/8" thick MDF already covered.
my internals are about 1cu ft per chamber SEALED.
front speakers I am using are Boston G5 12"s
when using the 12" Boston GTR radiator the box size stays at 1cu ft as with the sealed box design, so that being said,
I want to use the G3 12" recones as a passive radiator and add weights as an experiment to obtain a desired tuning frequency around 30hz, maybe higher.
coils have NOT been removed from the G3 recons (were still new) .
by using a quad sealed configuration for the box, I wish to "couple " the 2 sealed boxes together to make the G5 tune to the G3 recons in its enclosure. what size port to use to couple the 2 boxes together to get the desired frequency to make it all work together as a system. I can always add or remove weights if needed to help. all I want to know is what size hole (vent) to use inside the box for coupling 1 12 G3 Passive to the 1 G5 sub
ANY Ideas or thoughts might help, experienced people please add Ideas on this build!
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my box is currently SEALED chamber (4) for 4 12"s.
total box dimensions are as follows:
30" W X22.5" Deep at top, 25.5" deep at the Bottom
13" Height,
using 5/8" thick MDF already covered.
my internals are about 1cu ft per chamber SEALED.
front speakers I am using are Boston G5 12"s
when using the 12" Boston GTR radiator the box size stays at 1cu ft as with the sealed box design, so that being said,
I want to use the G3 12" recones as a passive radiator and add weights as an experiment to obtain a desired tuning frequency around 30hz, maybe higher.
coils have NOT been removed from the G3 recons (were still new) .
by using a quad sealed configuration for the box, I wish to "couple " the 2 sealed boxes together to make the G5 tune to the G3 recons in its enclosure. what size port to use to couple the 2 boxes together to get the desired frequency to make it all work together as a system. I can always add or remove weights if needed to help. all I want to know is what size hole (vent) to use inside the box for coupling 1 12 G3 Passive to the 1 G5 sub
ANY Ideas or thoughts might help, experienced people please add Ideas on this build!
An externally hosted image should be here but it was not working when we last tested it.
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An externally hosted image should be here but it was not working when we last tested it.
<br>
An externally hosted image should be here but it was not working when we last tested it.
A port will not be sufficient, you need to remove the dividing wall between two of the chambers to make into one big chamber. This will also give you a double size box which will improve response with the passive radiators.
what about having to ad weights to the G3 recons, is it really necessary to cut off the coils to do so (not really wanting to ruin the G3 recons as they are still new)
all of my Ideas are coming from specs here:
http://www.bostonacoustics.com/DocumentMaster/US/GTR_Man.pdf <br><p>
and here<br>
http://www.bostonacoustics.com/DocumentMaster/US/G3_Man.pdf
http://www.bostonacoustics.com/DocumentMaster/US/GTR_Man.pdf <br><p>
and here<br>
http://www.bostonacoustics.com/DocumentMaster/US/G3_Man.pdf
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