Originally Posted by
HeathKit
FWIW, I have just acquired a 606 cabinet with a 604c mounted inside. Turns out the 604 was reconed at some point in it's life with the 515 cone. Not having another 604c as a point of reference to compare it to I can only say that it sounds fantastic as it is.. I'm replacing a set of Valencia's that have been brought up to date with new GPA drivers and new crossovers with hi quality components that I built. The single 604c with 515 cone walks all over the Valencia. I've been told that the 604e cone can be used in the 604c but that the sound is not exactly the same. This is splitting hairs of course, but I believe the C is a little better in the midrange vocals and the E shines a little more in the low end. I've done a good bit of asking around and research on this subject because from what I am told the 606 corner cabinet is tuned specifically to the 604c not an e.. also told that the paper edge cone is a little more responsive than the cloth edge.