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Why the obsession with the lowest octave

From what is written in these forums and elsewhere see the following for instance.

Scroll down to the chart showing the even lowest instruments in this example recording rolling off very steeply at 40 Hz.

http://www.homerecordingconnection.com/news.php?action=view_story&id=154

It would appear that there is really very little to be heard between 20 and 40 Hz. Yet having true "full range" speakers is often the test of a great speaker. Does anyone beside me think that there is little to be gained by stretching the speakers bass performance below 30-40 cycles?
My own speakers make no apologies for going down to only 28 Hz and they are big floor standers JM Lab Electra 936s.
mechans

Showing 1 response by viggen900

viggen900's avatar
viggen900
64 posts
 
Several posts up I think someone mentioned that larger drivers are not as effecient as smaller drivers which make them require a much larger amp.

I have always thought that larger speakers are more effecient, like compare a JL 8w7 at 82.7db to a JL 13w7 at 86.3db

Or a Exodus Audio 12in sub at 85.1db vs their 21in driver at 89.6db......

Seems like the days of effecient drivers are over

The larger drivers do have a bit more mass to get moving however they also do not have nearly as far to travel to reproduce the same sound of the smaller driver.
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