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High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
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In Reply to: RE: Alternative to the EV ST350 horn tweeter on EV Sentry IV-A's posted by Geary Lyons on October 24, 2013 at 21:02:56:
Geary
The 4700 Hz XO point would have a similar effect to the EQ circuit following the X36, that is to say suppressing the midrange hump at the lower end of the ST350's response as seen in the EV EDS. It's no surprise that you preferred the 4700 Hz to a 3500 XO, the ST350 sounds really harsh without the EQ circuit, and more like a T350 with it. I would at least try it with the 3500 XO and the EQ circuit, and you have the option of adjusting the cap value to fine tune it. Lowering the cap value will decrease the steepness of the ramp beginning at about 2500 Hz and tilting downward towards the highs, at the expense of losing sensitivity as you suck more energy out of the lower end. Use only air core inductors (no iron)! The concern with the 4700Hz XO is that there might be a dip in the response in the area where the 1823M and ST350 integrate, but you'd have to measure this and see. The 1823/1824 family don't have phase plugs and just can't go very high, hence the EV tweeters going lower than others like the JBL's, and why you don't typically see JBL tweeters with these EV mids., but EV T350's can work with JBL etc mids.
You would have to measure the response of the EQ circuit with a 4700 Hz XO to see what happens, and how it reacts with the higher XO point, but adjusting the EQ cap value should have similar results.
I would try working with the ST350's first before going to other tweeters. The Fostex 900's that RCA Fan recommended look great from the specs, but at $1800 a pair they may make the ST350's start to seem like a good deal. Anyway, let us know how it goes. Good luck from the Electro-Voice Brotherhood!
Paul
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Follow Ups
- RE: Alternative to the EV ST350 horn tweeter on EV Sentry IV-A's - Paul Eizik 10/25/1310:03:53 10/25/13 (12)
- RE: Alternative to the EV ST350 horn tweeter on EV Sentry IV-A's - Geary Lyons 23:12:02 10/28/13 (9)
- RE: Alternative to the EV ST350 horn tweeter on EV Sentry IV-A's - Paul Joppa 15:03:46 10/29/13 (3)
- RE: Alternative to the EV ST350 horn tweeter on EV Sentry IV-A's - Geary Lyons 15:29:25 10/29/13 (2)
- RE: Alternative to the EV ST350 horn tweeter on EV Sentry IV-A's - Paul Joppa 21:20:33 10/30/13 (1)
- RE: Alternative to the EV ST350 horn tweeter on EV Sentry IV-A's - Geary Lyons 10:47:10 11/4/13 (0)
- RE: Alternative to the EV ST350 horn tweeter on EV Sentry IV-A's - Paul Eizik 12:45:29 10/29/13 (4)
- RE: Alternative to the EV ST350 horn tweeter on EV Sentry IV-A's - Geary Lyons 14:18:28 10/29/13 (3)
- RE: Alternative to the EV ST350 horn tweeter on EV Sentry IV-A's - Paul Eizik 20:33:54 10/29/13 (2)
- RE: Alternative to the EV ST350 horn tweeter on EV Sentry IV-A's - Geary Lyons 23:01:17 10/29/13 (1)
- RE: Sounds like a good plan! - Paul Eizik 16:51:39 10/30/13 (0)
- RE: Fostex correction... - Paul Eizik 12:29:05 10/25/13 (0)
- RE: Alternative to the EV ST350 horn tweeter on EV Sentry IV-A's - Inmate51 10:28:08 10/25/13 (0)
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