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

Hey Geary,

Paul has a good bead on this. I would only remind you that the x-over isn't just about FR curves, it's also about SPL and diaphragm excursion. The ST350 phenolic diaphragm is fairly "delicate" (which partially accounts for its excellent HF performance). Depending on your SPL desires, you'll want to cross to it at a reasonably high frequency and/or steep slope, so you don't make it go too far one way or the other. While E-V specs (I think) 3000 Hz as a low end, that depends on how loud you're playing the system. I cross to my T350 at about 5500 Hz, at 12 dB/octave, for home use, and I can crank it 'til I'm happy, with no worries.

:)


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