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<blockquote data-quote="Art Welter" data-source="post: 75089" data-attributes="member: 52">Re: SRX718 to &#039;what powered/active sub?&#039;Douglas,One can assume a sub is rated in half space unless it has rigging points and a chart specifically states full space. Testing a sub in full space requires it to be several wavelengths from the ground at the lowest frequency to be tested, that requires a very tall crane...As you noticed, the Mitus 118SA peak rating is for 2ms burst, less than 1/10th of a 36 Hz cycle. Even the 500ms (one half second) &quot;continuous&quot; rating is a bit light, synth players can lean on a low note a lot longer than a half second.The &quot;Electronic Specifications&quot; show 36 Hz at -6 dB, obviously the result of one of the presets used to tame the bandpass &quot;hump in the middle&quot; raw response. Still, for 2 grand, looks like a real box with a real speaker and a lightweight amp.</blockquote>

[QUOTE="Art Welter, post: 75089, member: 52"] Re: SRX718 to 'what powered/active sub?' Douglas, One can assume a sub is rated in half space unless it has rigging points and a chart specifically states full space. Testing a sub in full space requires it to be several wavelengths from the ground at the lowest frequency to be tested, that requires a very tall crane... As you noticed, the Mitus 118SA peak rating is for 2ms burst, less than 1/10th of a 36 Hz cycle. Even the 500ms (one half second) "continuous" rating is a bit light, synth players can lean on a low note a lot longer than a half second. The "Electronic Specifications" show 36 Hz at -6 dB, obviously the result of one of the presets used to tame the bandpass "hump in the middle" raw response. Still, for 2 grand, looks like a real box with a real speaker and a lightweight amp. [/QUOTE]

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