Quote:
Originally Posted by mob17
Kaigoss, would be interesting if you could model the IB3. I'd appreciate that.
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Here you go:
Also the excursion with a 25Hz subsonic filter. Notice how not even the W7 gets much past 20 mm?
With all the reading I have done on this topic in the last few weeks, I have learned that you have to take these graphs with a grain of salt. While they can predict SPL (i.e. how loud they can get at various frequencies), they cannot predict how the subs will sound. I do know however that the Qtc value - the "Q" of the enclosure - will tell you whether or not the sound will be "boomy" or "tight", or somewhere in between. My personal preference is for a more controlled, "fast" sound with good impact, and I have found, through personal experience and feedback from others in the car audio scene who are running IB, that for this to happen your total Q needs to be somewhere in the 0.5 - 0.6 range. Anything closer to, and above 0.7 will start to get a bit too "boomy" for my taste, but others may prefer it. The Qtc system values for each modeled sub can be seen in the individual drivers' boxes.