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Author Topic: ZOD 621-D subwoofer...where is this thing?  (Read 6916 times)

Art Welter

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Re: ZOD 621-D subwoofer...where is this thing?
« Reply #10 on: February 05, 2014, 06:44:24 pm »

However, about 20-22 mm would be a nice compromise for a high BL hybrid 21" that could be used for pro sound and home theater applications. That is a niche that continues to go unfilled, not that many will champion such an approach. I guess that is why the niche goes unfilled eh?
Doubling Xmax means a 6 dB increase in output (if you have more than four times the power available to achieve it) which is a big deal- at 20 Hz it sounds more than twice as loud.

Going from 15 mm to 20 mm is only about a 1.5 dB increase, but the production cost probably goes up more like 3 dB..
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