software

well...you can't really accurately tell how high you'll high on the meter.

Being loud to the ear and meter are two different things. A box can be designed to meter high numbers but can sound twice as quiet as a box that is designed to be loud to the ear. For example Hexibases Hellboy...it only metered like a 146-147 compared to a pure fart box that metered 149.6 on the meter but didn't sound anywhere as loud as Hellboy

 

For the 13Av.2??? If so that is way too big

 

yeah...6 cu ft is wayy too big for that sub. It would not be worth is wood, time, and space

6 cu ft with two 6 inch round ports 15 inches long would get your tuning around 35-36Hz. This box would be pretty boomy and not as good sound quality.

I'd stick with between 2.5-3.5 cu ft

 

what do you mean???? Bassbox says it is too small??

 

Before I talk about cone displacement remember that many of the rules I use are generalizations that I've come up with over the years. If your a gambling man then bet on them, but they are not 100%.We saw that with the Team Rockford Woofer. My rules did NOT work and I spent a couple of hours trying to figure out why.

Now cone displacement, if we are exceeding the woofers Xmax at 20 Hz we DON'T have a problem. There is no music that low. Sorry, didn't mean to hurt anyones feelings. In fact there is almost no music below 30. Get over it.

Now lets look at my sons cone displacement. He listens to Rap, Rock and Country, he listens to it all. He is a typical teen and he beats his woofers hard. But so far we have never had a problem.

His woofer maintains control to about 32 Hz (I would have prefered upper 20's) and yet we have never had a problem, so none of the material he plays is causing the woofer to exceed their limitations.

Notice the dip, thats were the port is tuned. Isn't that cool how we can see that. Also notice that the graph changes color when we exceed the woofers ability

 

I am using 1200 watts rms as the input signal.

Vent velocity for me doesn't exceed like 67 ft/second with a 3 cu ft box and a 14 by 4 inch vent tuned to 35 hz...sub doesn't go out of control until 25Hz also...as is well