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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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High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
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In Reply to: Can It Be a Horn If It Doesn't Look Like One? posted by midfiguy on November 5, 2024 at 06:58:45:
Nice work by everybody in this thread, but I'll pile-on in the margins, anyway. The freqs that "act like a horn" are, driver-depending, 80-120Hz in Aristocrats--that's jacked-up ~6dB over the already corner-lifted response. One can muscle that down by choking the pinch some, but at the cost of excursion and even more stubborn ringing (than the already stubborn design). What comes out the back is at least partially dependent on how you line and fill them (treat them like a taller reflex-box is more sane than leaving them empty, IMO).
Loaded doesn't always refer to only horns. For the "room" part of the loading, Mr. Murphy has a nice 1-pager https://trueaudio.com/st_spcs1.htm
Re the response curve, context is in order.
- cab design was from late '50/early '51
- this was still when cabs were sold for Any driver that fit the hole
- curves shown are pads wide-open on MR/HF as approp (BUT)
- subject curve was for the Radax (aka Whizzered) SP12B--a 12" playing to around ~10kHz
- motion pic assoc standard of the time was +/- 5dB
- given a '50's car, what standards might we hold it to?
If your house has solid corners (ie not sheetrock + nothing), they're still cool designs, EV just made them too thin and didn't line/fill them quite enough or brace them enough (esp the baffles & the top). All that is understandable given the need to market (and ship!) cabs as Hi-Fi exploded during the "golden era".
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Follow Ups
- RE: Can It Be a Horn If It Doesn't Look Like One? - grindstone 10:21:58 11/09/24 (0)
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