What do these specs mean?

[GregFarz78 10+ year member]

I know what some of it means but can anyone explain what the values in this table mean...

http://www.edesignaudio.com/ep/ospecs.htm

Click to read more...

 

[kingpin_jeffie 10+ year member]

those would be the Thiele/Small Parameters

simply put Thiele-Small is the name given to a number of driver performance characteristics

ie Fs - is the free air resonant frequency of the driver

Qes - is the electrical Q of the driver

Qms - is the mechanical Q of the driver

Vas - is the compliance volume of the driver

Sd - is the area of the driver diaphraghm.

Xmax - is the maximum displacement limit for the driver before ten percent (10%) distortion is reached.

Re - is the DC electrical resistance of the voice coil.

No - is the reference efficiency of the driver

Pe - is the continuous thermal power rating for the driver

 

[GregFarz78 10+ year member]

Is the driver better the smaller or larger the values?

 

[BonusBobo 10+ year member]

Originally posted by GregFarz78 Is the driver better the smaller or larger the values?

It depends on the values. For instance, the bigger the xmax, the more air it displaces, the louder the driver goes.