Quote:
Originally Posted by Jeff Permanian 
As others have said, the spl numbers aren't telling the whole story. As I turned up the volume the subwoofer got louder, the room shook harder and pant legs flapped more however spl numbers didn't increase. The only think I can think of is that the shaking room was counter productive and causing cancelation at the measurement position.
The Captivator's driver is bottomless however when it reaches its limits there is a slight amount of rocking so that the former will touch the pole, sounding like bottoming but not destructive. I'm going to update the amplifiers DSP so this doesn't happen which will make the subwoofer sound much better at its limits.
I'm really happy with everyone's option on the Captivator's music performance. There had been a lot of speculation that the Captivator won't be musical.
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Quote:
Originally Posted by MKtheater 
That does not make sense at all, spl's should go up. I would almost guarentee that the Cap will play louder than the submersive being a ported 18 with lots of power. Having said that none of the sealed subs were optimized for lower frequency performance which would add to the movie experience. Now with people saying how bad this room was for bass maybe frequencies into the lower teens are not possible unless you have multiple submersives.
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Is it possible that the frequency at which the max SPL's were being recorded was in a null and increasing the gain knob on the sub, while it would increase SPL's across other frequencies, wasn't in fact increasing the SPL at the null? Or that the frequency where the SPL was loudest was already causing deep compression with the sub and increasing the gain knob simply increased SPL across the higher end FR range for the particular scene in question? E.g., if a scene's loudest part was centered at 20hz and the sub went into deep compression at say 105db peaks at 20hz, and the rest of the scene was say 40hz to 80hz but mastered at a lower volume then increasing the gain knob would increase the SPL's everywhere but at 20hz where it's already hit it's limits.
Just making a WAG here and probably didn't explain what I was trying to say all that well ... but it is one of the reasons using a scene is somewhat meaningless to gauge "max SPL"...