Hello,
I'm looking for some help with a sub project I want to build.
Because of "spouse factor" it must be built into/under the coffee
table , and I have calculated that I have a maximum of 84 litres
available internally.
The driver I have is a 15" , 4 ohm with the following published specs :
p=300wrms
92.0 SPL
Re=3.499ohms
Fs=24.38hz
Qms=2.056
Qes=0.344
Qts=0.295
Vas=187.9 lt
Xmax=11.5mm
Voice Coil = 75mm , Alloy frame , Graphite coated paper cone , butyl rubber surround.......
I want to use for HT and don't mind if it is sealed or ported. I'm not sure which is best for this driver.......
Any help is appreciated.
Andrew
I'm looking for some help with a sub project I want to build.
Because of "spouse factor" it must be built into/under the coffee
table , and I have calculated that I have a maximum of 84 litres
available internally.
The driver I have is a 15" , 4 ohm with the following published specs :
p=300wrms
92.0 SPL
Re=3.499ohms
Fs=24.38hz
Qms=2.056
Qes=0.344
Qts=0.295
Vas=187.9 lt
Xmax=11.5mm
Voice Coil = 75mm , Alloy frame , Graphite coated paper cone , butyl rubber surround.......
I want to use for HT and don't mind if it is sealed or ported. I'm not sure which is best for this driver.......
Any help is appreciated.
Andrew
Grab yourself a copy of WinISD- it is easy to use and quite efficient for modeling.
With this program, and a ported 80L box, I get that you will have a linear response down to about 44Hz and a -3dB point of about 35Hz.
Sealed has -2dB roll off at about 60Hz. I would go ported... and I am actually building an HT sub right now, a sonosub. BUt things are not going so well for me... amp problems. 🙁 Good luck.
With this program, and a ported 80L box, I get that you will have a linear response down to about 44Hz and a -3dB point of about 35Hz.
Sealed has -2dB roll off at about 60Hz. I would go ported... and I am actually building an HT sub right now, a sonosub. BUt things are not going so well for me... amp problems. 🙁 Good luck.
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