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Dennis is correct. I cruise along using 4-500 watts.
With a sealed, L/T design, when the low stuff comes, in order for the sub to keep up the same SPL as that of the sub playing a 40 or 50 Hz note, it requires 6-10 dB of boost.
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Ah, I didn't realize you were using a Linkwitz Transform. Man do I hate abbreviations and acronyms! You definitely can use the extra power then. I would guess my sub is loafing along at about 50 watts, if that. But then, most people are not crazy enough to use a box that's 50% larger than Vas.
I have yet to blow a woofer (other than for fun, intentionally, in free air).
Dennis,
I understand your point, and low distortion is an admirable goal, but I don't totally agree. I would say that people's expectations have grown vastly higher with the advent of longer excursion drivers, starting with the Shiva and now with the Tumult and Parthenon. That my driver is producing more distortion than a Tumult or even Tempest almost goes without question. But do I actually need lower distortion levels? Not really. Also, my receiver has a built in subwoofer peak limiter, so I don't need to worry about bottoming the driver, ever. I deal with subwoofers each day at work, and mine kills the majority of commercial units we sell, except for box size.
Don't get me wrong, I am all for state of the art design. That's what advances technology which eventually trickles down to all the other lines. But I have to draw the line somewhere. People keeping designing more and more subwoofers that have higher and higher output levels, when is enough, enough? First it was 105dB, now it's 115dB, this one in question is no doubt over 120dB (in room anyhow), next it's 125dB, or 130dB? I already don't listen to my system at reference level, usually at 10dB under, so why would I need more output? Plus, I'd like to keep my hearing, my house's walls, and my neighbors friendship! This is all in my opinion, of course.
Aaron Gilbert