RE: EV T-35 Horizontal or Vertical orientation????

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In Reply to: EV T-35 Horizontal or Vertical orientation???? posted by drlowmu on July 29, 2012 at 12:26:32:

Jeff

This will depend a great deal on what you are going to mate with the T35 for the midrange. Typically this would have been an EV 8HD midrange horn with an 1823/1824 comp. driver with a 3500 Hz crossover. EV indeed pictured them both mounted with the long dimension vertical on the flat baffle of their box plans using a direct radiator woofer. However there's always the factor of what fits: on the spec sheet for the EV 848HF coax mid horn, the small forward firing upper mid horn is seen in the pic with a vertical mount, but in the drawing is seen in the horizontal. The related 848A is shown only with the small mid horn in the horizontal position relative to the larger horn loading the rear of the diaphragm. If you"re mounting the T35 "open air", you can try it both vertical and horizontal and see how it integrates with what's below (you'll have to rig up a mounting "sled" to get the T35 to stand up in the vertical position of course). If you go this way, you have the option of getting the T35 and the mid in phase (aka Time Aligned^tm), but if you're going with a flat baffle mount, where the mid horn and T35 mouths will end on the baffle, then this will not be possible without delay in the crossover or digital domain. The crossover point you will choose is another factor, but don't expect much output from the typical T35 over around 7K Hz. or so, and the 3500 Hz lower crossover point was chosen by EV to avoid a resonance in the octave below this. There were several T35 variants: early ones had alnico magnets and were 16 Ohms; later ones were 8 Ohms with alnico, but square ceramic magnets appeared at some point with the T35A; the T35B had a smaller magnet both in alnico and ceramic versions, and about 3 dB less output. The University HF tweeters I have seen had the smaller magnets similar to the T35B. Drivers and crossovers which were superseded by later models in the EV line frequently got a grey paint job and the University badge.

Hope this helps (but it all may be more than you wanted to know ; )

Paul

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Follow Ups Full Thread

Topic - EV T-35 Horizontal or Vertical orientation???? - drlowmu 12:26:32 07/29/12 (8)

I Asked the Same Question... - Gerry E. 16:14:16 07/31/12 (0)

THANKS EVERYONE !! - drlowmu 08:26:41 07/30/12 (0)

RE: EV T-35 Horizontal or Vertical orientation???? - tomservo 06:49:28 07/30/12 (0)

RE: EV T-35 Horizontal or Vertical orientation???? - Iron Knee 22:56:46 07/29/12 (0)

RE: EV T-35 Horizontal or Vertical orientation???? - Paul Eizik 17:01:09 07/29/12 (0)

RE: EV T-35 Horizontal or Vertical orientation???? - grindstone 16:27:55 07/29/12 (0)

RE: EV T-35 Horizontal or Vertical orientation???? - electrovice 13:21:42 07/29/12 (0)

RE: EV T-35 Horizontal or Vertical orientation???? - moray james 12:55:50 07/29/12 (0)

Follow Ups

RE: EV T-35 Horizontal or Vertical orientation???? - Paul Eizik 17:01:09 07/29/12 (0)

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