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

OK! OK! 3500Hz it is!! ;-)!! You are quite right on the 1823M roll off, as well. This is from the 1823M EDS with PA horns but, probably similarly applicable with the ST120's.




My reference to the X36 being Linkwitz-Riley was due to the values of the capacitors and inductors that they used. A L-R alignment with those values is about 3500kHz.




My alignments are Butterworth. I prefer Butterworth, so...will the EQ be affected with approximately C = 4uf and L = .5mH for the XO before the EQ rather than the X36 values?

Just for grins & giggles,I am not sure about what EV engineers meant for inductor value on the 6K. I couldn't find what the referenced part number value is. I got the same .04mH paralleling 3 x .12mh and thought "no way!". So three of those referenced parts yielding .12mH was my conclusion, but still doesn't work out to 6K for me!!!

Off to make a BOM!!! Butterworth or X36 values? What did you use?

Thanks for all of your practical experience!!!!

Cheers,
Geary



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