How do you know if your sub is damaged? - AVS Forum
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post #1 of 4 Old 01-23-2009, 05:12 AM - Thread Starter
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I was playing with a audio test DVD this morning and I heard some distortion when the sweep got down to 20htz. I have a super cube 3 from Def Tech, and I know that these subs don't go very low. So I was curious if I had damaged my sub. How would I know if I blew it out? Is it possible to blow it out? Wouldn't the sub just stop responding if the signal was to low for it to play? My volume was around -20, which I believe is about 85dbl on my system.
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post #2 of 4 Old 01-23-2009, 05:45 AM - Thread Starter
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I did some more testing, and there is no chuffing or distortion. At around 25hz, my house makes some very odd noises (new construction) but I am pretty sure all is well.

I just wish I had known better when I bough this sub. While it sounds very nice and looks great, the output isn't very deep for the price I spent ($665) 2 years ago.
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post #3 of 4 Old 01-23-2009, 06:08 AM
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The specifications say it goes from 16Hz up to 200Hz. I highly doubt it reaches 16Hz though, DefTech didn't mentioned whether 16Hz was the -3dB point or what.

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post #4 of 4 Old 01-23-2009, 06:31 AM - Thread Starter
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At around 20hz, I may be hearing some chuffing but it is hard to tell. The house shakes so much I can't tell what I am really hearing!
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