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<blockquote data-quote="VWBobby" data-source="post: 8454551" data-attributes="member: 624844">Fair enough.&nbsp;&nbsp; Just for debate... //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gifLet&#039;s say this is how the 1W/1M thing works.....because this is how I understood it.You place a DC voltage of around 2.83V or 1W (depending on who is giving the spec) for a split second, and measure the Db output of the speaker at 1 meter away from the speaker.For instance, a speaker with a low sensitivity might make a small thud/thump when you put a 2V DC current across the terminals for a split second.....like how we test speakers with a 9V battery.&nbsp; //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif&nbsp;&nbsp; Now you take the same 2V and put it across a speaker of 90db or higher &quot;sensitivity&quot;/efficiency and you will get a lot louder &quot;POP&quot; out of it....How I read the difference is how you mentioned above: stiffer suspension, higher power handling (heavier coil), heavier soft parts = lower sensitivity.The guys with the super light aluminum coils, aluminum or CF cones, and mild suspension usually has a higher sensitivity and responds quicker.&nbsp; Seems like the music can get &quot;colored&quot; on al cone setups.&nbsp; Especially when you get into mids and tweetes, materials make a huge difference in sound color.</blockquote>

[QUOTE="VWBobby, post: 8454551, member: 624844"] Fair enough. Just for debate... [IMG]//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif[/IMG] Let's say this is how the 1W/1M thing works.....because this is how I understood it. You place a DC voltage of around 2.83V or 1W (depending on who is giving the spec) for a split second, and measure the Db output of the speaker at 1 meter away from the speaker. For instance, a speaker with a low sensitivity might make a small thud/thump when you put a 2V DC current across the terminals for a split second.....like how we test speakers with a 9V battery. [IMG]//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif[/IMG] Now you take the same 2V and put it across a speaker of 90db or higher "sensitivity"/efficiency and you will get a lot louder "POP" out of it.... How I read the difference is how you mentioned above: stiffer suspension, higher power handling (heavier coil), heavier soft parts = lower sensitivity. The guys with the super light aluminum coils, aluminum or CF cones, and mild suspension usually has a higher sensitivity and responds quicker. Seems like the music can get "colored" on al cone setups. Especially when you get into mids and tweetes, materials make a huge difference in sound color. [/QUOTE]

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