In Reply to: RE: No fooling posted by dave789 on August 27, 2016 at 17:48:09:
It does amplitude-frequency equalization, too, in many cases.
Not by 20-30 db at the top! High quality tweeters naturally operate to 20 kHz and beyond without any need for boosting.
Technically, this does not make sense at all.
Perhaps to you.
As Kal indicated, using a four inch piston to reproduce a one inch wavelength (and smaller) creates inconsistent directivity through its range. Then, placing a large number of them together spaced greater than the wavelengths reproduced creates copious amounts of comb filtering, aka "chaotic interference" which kills coherence.
What does "forcing" technically mean?
Using artificial means for a driver to reproduce frequencies beyond its inherent bandwidth. A 4.5" driver is good to about 3 khz for consistent directivity. That's why they call them midranges!
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Follow Ups
- RE: No fooling - E-Stat 18:45:40 08/27/16 (16)
- What to do with the directivity of full-range cone? - dave789 05:41:09 08/28/16 (9)
- Its waterfall plot is quite expected - E-Stat 06:03:56 08/28/16 (8)
- Sound Lab U-1PX has equalizers (nt) - dave789 06:26:58 08/28/16 (7)
- True - E-Stat 06:56:17 08/28/16 (6)
- Wow - dave789 07:05:14 08/28/16 (5)
- RE: Wow - E-Stat 07:09:22 08/28/16 (4)
- I just saw your gallery - dave789 07:22:30 08/28/16 (3)
- Thank you! - E-Stat 07:30:38 08/28/16 (2)
- RE: Thank you! - cloudwalker 12:57:54 08/28/16 (1)
- RE: Thank you! - E-Stat 07:00:57 08/29/16 (0)
- RE: No fooling - dave789 05:04:24 08/28/16 (5)
- RE: No fooling - E-Stat 05:48:55 08/28/16 (4)
- RE: No fooling - dave789 06:07:52 08/28/16 (1)
- RE: No fooling - E-Stat 06:19:24 08/28/16 (0)
- You said nothing about end result. (nt) - dave789 05:58:57 08/28/16 (1)
- Evidently - E-Stat 06:11:06 08/28/16 (0)