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bossobass wrote:
 This is simply outstanding performance in it's class...period. I'm here to tell ya, if any DIYer can match this performance in a 1X15" sealed sub, I'd like to shake his/her hand. |
I agree. It's simply amazing how much performance they've pushed out of a such a small box and by using only a single 13.5" driver. It pretty much matches or slightly surpasses the SVS Plus/2 (20 Hz tune) in 20-40 Hz range, and surpasses it by 3-6 dB anywhere else.
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Ilk...I've been meaning to ask you: When the compression graphing is done as JL has done it in these graphs, IOW by a series of single-tone points, would there be significance in comparing this to sweeps in that the sweeps should show the difference THD makes between the two methods, or would the THD not influence the upper range of the sweep graph vs the single point graph?
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It depends of the subwoofer. Some subs are more tolerant to longer test signals (like 30s sweeps), but some are prone to heat up during them. That of course adds compression and THD. It is a matter of VC and amp cooling how well the sub handles the longer test signals. If I'd had to take a wild guess, I'd say it doesn't really matter how these JL Audio monsters are tested, they will always show similar performance.
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I hope you get to measure this sub, as tests of it's unique features would be very cool info.
Bosso
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Me too. Too bad that the 230V versions are due late 2007.