jigsISF
Junior Member
Are sealed boxes tuned to a certain frequency or is that just for ported enclosures?
The reason I ask is I have a sealed box and was wondering when I get my system hooked up, what I should set the subsonic filter to. I heard usually a few hertz below the "tuned" hertz. Here are the specs of my box and speakers:
2 Fi Q 12" :
Fs: 34.2 Hz
Re: 0.7 Ohms/coil
Qms: 7.63
Qes: .39
Qts: .37
Mms: 249g
Cms: 0.87mm/N
Sd: 481cm^2
Vas: 28.3 l
Spl: 86.5dB 1W/1m
Bl: 13.9 N/A
Xmax: 28mm
Rms: 1500W
Sealed box: .8-1.5 High QTScuft
Ported box: 1.8-2.5 cuft @ 28-33Hz
Sub OD: 12.500”
Cut ID: 11.125”
Mounting depth: 7.000”
Displacement: 0.16cuft
and the box specs (sealed):
- 3/4" and 1/2" MDF Construction
- Black automotive carpet
- Holds 2 round 12" subwoofers (10" subs may be substituted upon request)
- 1.15 cubic feet per chamber (volume can be reduced upon request)
- 9.5" mounting depth
- Round spring loaded speaker terminals
- Sealed air tight w/liquid nails caulk
- Roughly 25 lbs.
View attachment 26543387
The reason I ask is I have a sealed box and was wondering when I get my system hooked up, what I should set the subsonic filter to. I heard usually a few hertz below the "tuned" hertz. Here are the specs of my box and speakers:
2 Fi Q 12" :
Fs: 34.2 Hz
Re: 0.7 Ohms/coil
Qms: 7.63
Qes: .39
Qts: .37
Mms: 249g
Cms: 0.87mm/N
Sd: 481cm^2
Vas: 28.3 l
Spl: 86.5dB 1W/1m
Bl: 13.9 N/A
Xmax: 28mm
Rms: 1500W
Sealed box: .8-1.5 High QTScuft
Ported box: 1.8-2.5 cuft @ 28-33Hz
Sub OD: 12.500”
Cut ID: 11.125”
Mounting depth: 7.000”
Displacement: 0.16cuft
and the box specs (sealed):
- 3/4" and 1/2" MDF Construction
- Black automotive carpet
- Holds 2 round 12" subwoofers (10" subs may be substituted upon request)
- 1.15 cubic feet per chamber (volume can be reduced upon request)
- 9.5" mounting depth
- Round spring loaded speaker terminals
- Sealed air tight w/liquid nails caulk
- Roughly 25 lbs.
View attachment 26543387
