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<blockquote data-quote="Ivan Beaver" data-source="post: 17034" data-attributes="member: 30">Re: WedgiesThat is exactly the problem with using single number to try and describe how a loudspeaker &#039;&#039;operates&#039;&#039;.Below is a good example of a loudspeaker that has a high peak SPL rating (it is rated for 142dB peak on the manufacturers spec sheet), but can only achieve that SPL at a single freq.&nbsp; What would be called a more &#039;&#039;nominal&#039;&#039; level is 10dBish lower <img src="http://www.soundforums.net/images/smilies/icon_rolleyes.gif" alt="" class="fr-fic fr-dii fr-draggable " data-size="" style="" /> This is from their EASE data.&nbsp; it is not a &#039;&#039;published&#039;&#039; spec-so to speak (not in their literature)-but is viewable with the right tools.So the &#039;&#039;operating SPL&#039;&#039; is much lower than the &#039;&#039;peak&#039;&#039; number on the spec sheet.That peak is useless and once it is &#039;&#039;eqed out&#039;&#039; so the response would be usable, the &#039;&#039;peak&#039;&#039; level will be quite a bit lower.You HAVE to be very careful when looking at single numbers on spec sheets<img src="http://index.php/fa/341/0/" alt="" class="fr-fic fr-dii fr-draggable " data-size="" style="" /></blockquote>

[QUOTE="Ivan Beaver, post: 17034, member: 30"] Re: Wedgies That is exactly the problem with using single number to try and describe how a loudspeaker ''operates''. Below is a good example of a loudspeaker that has a high peak SPL rating (it is rated for 142dB peak on the manufacturers spec sheet), but can only achieve that SPL at a single freq. What would be called a more ''nominal'' level is 10dBish lower [img]http://www.soundforums.net/images/smilies/icon_rolleyes.gif[/img] This is from their EASE data. it is not a ''published'' spec-so to speak (not in their literature)-but is viewable with the right tools. So the ''operating SPL'' is much lower than the ''peak'' number on the spec sheet. That peak is useless and once it is ''eqed out'' so the response would be usable, the ''peak'' level will be quite a bit lower. You HAVE to be very careful when looking at single numbers on spec sheets [img]index.php/fa/341/0/[/img] [/QUOTE]

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