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Alternative to the EV ST350 horn tweeter on EV Sentry IV-A's

I have a pair of EV Sentry IV-A's. They are in the finishing stages of a rebuild as I described in an earlier thread. They have 2 Gefco 12" Alnico woofers per bin, 1823M drivers on SM120 horns and ST350 horn tweeters.

There is discussion on another thread about the FR of the ST350 not being much above 12KHz, which is a fact on mine. This is not a major issue for me, as I do enjoy the overall sound of the Sentry's and my HF hearing is probably not much higher anymore. Don't need to go to 20KHz, but an honest 14KHz might be nice. Need to be around 103-105dB/1W/1m. Since the ST350 is essentially the T35 with a different horn, I tried a pair of Crites ST-125's that a buddy has. No much to my taste on the Sentry's, too bright and glaring.

Has anyone tried a different tweeter CD/horn combo that they liked? Not necessarily on the Sentry's, but one that crossover at about 4 to 5 KHz? My current crossover point for the ST350's is 4700Hz/12dB. For those not familiar with the EV Sentry IV's, the tweeter is mounted to the mid horn with rails and sits in the top of the upper bass bin.(see pic) This makes tweeter swapping relatively simple. Would putting a different horn or wave guide on the Eminence APT used for the Crites make a positive difference? Other alternatives?

I sheathed the old ply on the bass bins with 1/2" Baltic birch ply and put a "beauty belt" of solid cherry around the mid band, so no longer looking quite as road worn. The more solid, thicker walls really tightened up the bass, increased the apparent speed/attack and definition.
Quite happy with that!!!

Cheers,
Geary







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Topic - Alternative to the EV ST350 horn tweeter on EV Sentry IV-A's - Geary Lyons 18:27:53 10/22/13 (48)

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