It seems that just about every 10" subwoofer I try in a sealed box, WinISD says the -3dB point is about 50 Hz. Like a JL 10W0-8 it says 46 Hz. Whatzzup wid dat?
A 10 inch sub in a sealed box would be about that, I guess try a larger box if you want to lower it.
If you really want full bass extension, go a medium sized ported box, or a 12 inch sub, or both.
If you really want full bass extension, go a medium sized ported box, or a 12 inch sub, or both.
If the Qts is too low it will not work well in a sealed box but roll off too early. In WinISD open the parameters box and double click on the Qts figure and change it and see the effect it has. This will give you an idea of what to look for. Recently I came to the conclusion that 0.5 is best for a bass reflex box, and 0.7 is best for a 2 chamber 2 port bandpass. IMHO of course. 🙂 You can raise the Qts by putting a small amount of resistance in series.
But these subs are specifically intended for sealed box applications, and WinISD comes up with the same size box as is recommended by the speaker manufacturer. I've used the JL in my car and it went pretty darn low. Certainly below 50 Hz.
Qts is about .40
What's the point of a big subwoofer if it's not gonna go any lower than a 6.5?
Qts is about .40
What's the point of a big subwoofer if it's not gonna go any lower than a 6.5?
maylar said:
I'd suggest that a car is a pretty small room, and provides a fair bit of bass lift. That driver in that box might not go any lower that some 6.5's, but with the increased cone area, Xmax and power handling, it should be able to move a heckuva lot more air.
JMO,
dooper
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