I want to add 2405 tweeters to my 4435s. I already own the 2405s. I don't want to change the JBL xover. I was thinking of just using a passive high pass 12db/oct at 14Khz with a L pad. Then set the 2405 in a fancy walnut holder on top of the cabinet just above the horn. I'm retiring Sept 1st so I'll have all kinds of time! Two 15s a horn and a super tweeter, poor mans Everest. No offence Barry I would love to own a set of Everest.