Hi Moray, nice of you to pop in here. You know I asked myself the same thing, as have many others and the only answer I have is that it felt better to put the curved pieces in than to leave them out.
Are you thinking of coming out to the coast again for the VanIsleFest this year? Be nice to see you again.
Ya that occurred to me to.High frequencies through foam walled multi turn backside horns?
As much chances as a snowflake in h*ll.
Just sayin'
Thanks for the reply Cal and the kind words. Would be nice I will have to see what the situation is for Stew and or another friend so I could not say right now. The soft material might just absorb more than wood ply might but it still making a reflector.
Reason this caught my eye is that I recently started using an acoustical filter over the front of a 12 inch woofer to catch the multiple source points of frequencies at the top pf it's range (over 700 Hz) this is a three way speaker. The SAE rated 1/8 inch thick blanket does a very effective job of eating up those high frequency multiple source points and level drops them. The difference in spatial imaging is immediately noticeable with the filter blanket on or off the woofer. You horn(s) is physically larger so the multiple source points will be more noticeable. and there is a compounding factor in that the driver is centrally mounted. try a thin old wool blanket and see what you think about what it does. Easy to find out. Great looking design Best regards Moray James.
Reason this caught my eye is that I recently started using an acoustical filter over the front of a 12 inch woofer to catch the multiple source points of frequencies at the top pf it's range (over 700 Hz) this is a three way speaker. The SAE rated 1/8 inch thick blanket does a very effective job of eating up those high frequency multiple source points and level drops them. The difference in spatial imaging is immediately noticeable with the filter blanket on or off the woofer. You horn(s) is physically larger so the multiple source points will be more noticeable. and there is a compounding factor in that the driver is centrally mounted. try a thin old wool blanket and see what you think about what it does. Easy to find out. Great looking design Best regards Moray James.
Thse look like the evil star shaped aliens in some Japanese sci-fi flicks (Lost In Space too).
It's a tapped mass-loaded horn. They've been around in various
forms since the dawn of time (well, ~the 1930s / '40s at any rate
Hi,
By "tapping" I assume you mean the driver offset in the line
and "horn" you mean the expanding taper, but for us old duffers
we've never heard of taps and we know what a real bass horn is.
Its an offset driver, terminus mass loaded, geometrically
expanding quarterwave resonant transmission line.
Its not a horn, in any sense of what a proper horn is.
rgds, sreten.
Found it "Warning From Space"
If I were to make a small version of Cal's pentahorn with the Visaton FRS5, it would be the spitting image of these aliens from outer space.
An externally hosted image should be here but it was not working when we last tested it.
A Japanese "actor" inside a "monster" suit?Found it "Warning From Space"
Never saw, how original
By the way, nice find
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