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any reasonably priced cone drivers when horn loaded will keep up with midbass horns?

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Posted on October 21, 2016 at 23:54:43

freddyi
Audiophile

Posts: 3852
Joined: December 6, 2001

picked up some "RT4" - don't think one on a tractrix will keep up in a passive system. My old LE5 seem to measure low. I don't want to pay $100 for one cone speaker. I can fall back on SA-HF/511.
Karlson Evangelist

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RE: any reasonably priced cone drivers when horn loaded will keep up with midbass horns?

Bill Fitzmaurice

05:14:12 10/22/16

RE: any reasonably priced cone drivers when horn loaded will keep up with midbass horns?

freddyi

13:14:51 10/22/16

RE: any reasonably priced cone drivers when horn loaded will keep up with midbass horns?

Bill Fitzmaurice

14:27:48 10/22/16

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RE: any reasonably priced cone drivers when horn loaded will keep up with midbass horns?

Bill Fitzmaurice

05:14:12 10/22/16

RE: any reasonably priced cone drivers when horn loaded will keep up with midbass horns?

freddyi

13:14:51 10/22/16

RE: any reasonably priced cone drivers when horn loaded will keep up with midbass horns?

Bill Fitzmaurice

14:27:48 10/22/16

RE: any reasonably priced cone drivers when horn loaded will keep up with midbass horns?

freddyi

14:58:04 10/22/16

RE: any reasonably priced cone drivers when horn loaded will keep up with midbass horns?

Bill Fitzmaurice

15:04:09 10/22/16

RE: any reasonably priced cone drivers when horn loaded will keep up with midbass horns?, posted on October 22, 2016 at 05:14:12
Bill Fitzmaurice Industry Professional Posts: 5370 Location: New England Joined: October 20, 2002	I've successfully used Eminence Alpha 6 CBMRA

RE: any reasonably priced cone drivers when horn loaded will keep up with midbass horns?, posted on October 22, 2016 at 13:14:51

freddyi
Audiophile

Posts: 3852
Joined: December 6, 2001

Hi Bill,

how deep and what expansion horn? what kind of highpass? Here's a similar Eminence 6.5" of mine with 30oz magnet, slightly lower qtc bare then on a short JBL waveguide with 1:1 throat. There's no "Gain" above a point of ~1K5 - just on the low end (which is helpful). When the response is made flat on the low end with just a cap, it seems to do well, has a sharp low end cutoff and distortion is low at 500Hz - I don't think its as sensitive a say a Klipsch style paging driver on long exponential horn setup. (?)

497Hz ~ 1 watt sine overtones (indoors)

630SS bare driver - interestingly, H2 is lower without the waveguide

630SS plus JBL waveguide

Karlson Evangelist

RE: any reasonably priced cone drivers when horn loaded will keep up with midbass horns?, posted on October 22, 2016 at 14:27:48
Bill Fitzmaurice Industry Professional Posts: 5370 Location: New England Joined: October 20, 2002	The horn I use it in has a 500Hz-2.5kHz pass band, it's fairly flat with 105dB/w sensitivity. It's an 18mm long CD horn with a 40sq cm throat, 500 sq cm mouth, and a phase plug.

RE: any reasonably priced cone drivers when horn loaded will keep up with midbass horns?, posted on October 22, 2016 at 14:58:04
freddyi Audiophile Posts: 3852 Joined: December 6, 2001	that's more extended than I'm getting. If I were to experiment with adding a plug to the existing JBL waveguide and 630SS combo, might that improve performance? - or would that create new problems? - several discs of decreasing diameter could be stacked - if that matters vs one disc Karlson Evangelist

RE: any reasonably priced cone drivers when horn loaded will keep up with midbass horns?, posted on October 22, 2016 at 15:04:09
Bill Fitzmaurice Industry Professional Posts: 5370 Location: New England Joined: October 20, 2002	A phase plug helps HF extension, whether it will work in that JBL horn I can't say.

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