K series -E series

[John]

Any one want to explain what the improvements were from the "K" to the "E"

[Mr. Widget]

The K series were essentially the D series with newer glues and VC formers to withstand greater power... then came along the cobalt shortage and...

http://www.audioheritage.org/vbullet...ead.php?t=4031

Widget

[John]

So the "K" was alnico and the "E" is ferrite???

[Mr. Widget]

So the "K" was alnico and the "E" is ferrite???

Yes.

The E series tend to have different cones and slightly different sonic character as well.

Widget

[Alex Lancaster]

John: Yes, K=AlNiCo, E=Ferrite, The E series handle more power, but some musicians prefer K's, it has been discussed here amply, and producing against re-producing sound is a matter of personal taste, these lines of speakers are lots of times overdriven on purpose (against JBL´s recommendation), but what counts is if You like it, E's have about 50% more power handling.

[John]

Well I just checked out the library and according to the info there the power handling is the same from the "K" to the "E" ????

[hector.murray]

Theile/Small parameters state K-120 @ 100 Watts max, E-120 @150 watts