Posted elsewhere by cask05, but relevant to this thread I guess.
Spectrograms of the Faital Pro HF20AT and the TAD TD-4002 on a K-402 horn.
Not bad, considering the TAD is 10x the price of the Faital.
Spectrograms of the Faital Pro HF20AT and the TAD TD-4002 on a K-402 horn.
Not bad, considering the TAD is 10x the price of the Faital.
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And a B&C DE750, known for its huge breakup spike.
No ellipse needed.
No ellipse needed.
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Its mouth radius either needs to be much larger or damped enough to mimic it. A rounded over wooden perimeter horn extension would be a nice cosmetic double duty tweak, though of course the trade-off is a wider crossover gap, so for me it's always a foam mouth termination or fiberglass insulation if a grill is used.
Folks tend to forget these type horns are for being within 3/4" of a perforated screen [assuming it hasn't changed over the decades], so the whole area is coupling to it to a greater or lesser extent, making this ~moot.
From just looking at photos though, mounting the horn to a frame and wrapping foam around it starting at the horn's flange form line to create a diffuse 'bumper' seems a worthwhile tweak once the right density is found.
The easy choice would be water pipe insulation, but it's closed cell foam, so to some extent reflective, but not having tried it might be worth gambling a few bucks to find out.
GM
just a demonstration of my abilities to inspire lol!
Sincerely Your curator
Now, I tend to do things in a kind of OCD order, meaning I could seat the new diaphragms, I could start playing with the dsp and learning it, I could probably move a little quicker on the enclosure design but because I haven’t received the woofers yet.....my ocd says no. I am interested in a rack of sorts to hold the amps, maybe something with wheels? I dunno. Looks to be another 75 hr week, so it’s not like I have much time anyway. It maybe till November when I get laid off for winter that this build is concluded. Only time will tell...
The discussion abroad is delightful, please carry on.
Even more so if you consider the dimensions of a the 4-way 5742's (which btw are used with the cabs of the 5732 in the IMAX theatre):
2763 mm x 762 mm x 610 mm (108.8 in x 30.0 in x 24.0 in).
2763 mm x 762 mm x 610 mm (108.8 in x 30.0 in x 24.0 in).
An externally hosted image should be here but it was not working when we last tested it.
......though quite a bit smaller 'face' than the A4X due to its wings [108.5" H x 80.5" W x 39.5" D], which begs the question: do the JBL's have as 'full' an upper bass/lower mids?
GM
GM
JBL baffled 2-way, 12" + 2409H, the same HF driver as 7 Series master reference studio monitors.
Frequency Response (-3dB): 77Hz - 14kHz
Frequency Response (-10 dB): 44Hz - 18kHz
Free Field Sensitivity: 99 dB SPL@1W, 1M
Calculated Max SPL: 125dB
Frequency Response (-3dB): 77Hz - 14kHz
Frequency Response (-10 dB): 44Hz - 18kHz
Free Field Sensitivity: 99 dB SPL@1W, 1M
Calculated Max SPL: 125dB
An externally hosted image should be here but it was not working when we last tested it.
Same series, top-of-the-line model (it's also a 2-way).
SPECIFICATIONS
Frequency Response (-3 dB): 44Hz - 18kHz
Frequency Response (-6 dB): 40Hz - 20kHz
Frequency Response (-10 dB): 36Hz - 20kHz
Max Continuous SPL: 135 dB
Horizontal Coverage (-6 dB): 100° @ 4kHz
Vertical Coverage (-6 dB): Asymetrical 600 (+25, -45 @ 4kHz)
SPECIFICATIONS
Frequency Response (-3 dB): 44Hz - 18kHz
Frequency Response (-6 dB): 40Hz - 20kHz
Frequency Response (-10 dB): 36Hz - 20kHz
Max Continuous SPL: 135 dB
Horizontal Coverage (-6 dB): 100° @ 4kHz
Vertical Coverage (-6 dB): Asymetrical 600 (+25, -45 @ 4kHz)
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
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At less than 50% of the price of a pair M2s these seem to offer quite a lot of value.
In Europe these are available from this store ao.
In Europe these are available from this store ao.
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