Yes, there is indeed more than one way to reach someone's music goals. Expectations will be different between listeners.not a blueprint for others to reach audio nirvana.
Some will like sealed enclosures, some will like TLs, some will try line arrays or work on synergy horns... myself, at the moment, I really like OB.
Yes, there is indeed more than one way to reach someone's music goals. Expectations will be different between listeners.not a blueprint for others to reach audio nirvana.
Some will like sealed enclosures, some will like TLs, some will try line arrays or work on synergy horns... myself, at the moment, I really like OB.
Thats hilarious. I would definitely want to put some sort of coating on that cinder block, all around the inside. I can only imagine how damaging fine cement dust would be to a drivers mechanical motion.I always wanted to build a pair.
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That’s a good thought. I have the cinder blocks, 4 midranges , 2 tweeters, and crossovers. Maybe I’ll build them this summer.
I bought these soupstone speakers used, malfunctioning. They are made from slices that are glued together. Thickness is about 1" pentagon crossection, no bracing. Tweeter and mid have mdf closed box inside. I changed all drivers, replaced analog xo and amps with Hypex FA123.
https://www.diyaudio.com/community/threads/avalanche-as1-modernization.321711/



https://www.diyaudio.com/community/threads/avalanche-as1-modernization.321711/




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I like those. Once your are gone your children may haven them engraved and can use them as active powered grave stones. A dignified end for a HIFI nerd...
Don't forget the listening chair...
I think you could safely "set" that chair anywhere and it is not going to disappear in the night.
in reminiscence of floor coupled up firing loudspeakers like Sonab I start a new project with a marble enclosure.
i ordered for two subwoofers a pair of marble boxes but got a pair with openings on wrong sides.
Instead of complaining at the stonemason I make now a pair of marble up firing loudspeakers. I did that already:
https://www.diyaudio.com/community/...-firing-speakers.121385/page-175#post-6707993
Drivers I pretty use what I can get - some cheapo drivers which will get a faraday ring, metal foil whizzer cone and aluminium metal foil sandwiched paper cone.
Four "tweeters" per box arranged around the up firing fullrange driver will be used mainly working above 6khz for the indirect/direct/omni sound field.
The box still has to be closed on the downside (misunderstanding with the stonemason) with some rest of stone pieces glued in with silicone.
8cm reflex pipe in 50liter enclosure with 50% white wadding inside.
price point of these galala marble boxes is material and work for 60 dollars a pair in egypt. In egypt stone is cheaper than wood.
size is outside 35 cm x 35 cm x 56 cm, two centimeters thick marble
i wanted reflex ports facing to the bottom.... but got a port on the side
29mm mylar mini speakers, open on the back side will be filtered with 1 uF in 8-8 8-8 ohm arrangement but listening test will show which arrangement will do for the best sound
how to make a whizzer diy:
https://www.diyaudio.com/community/threads/how-to-make-a-whizzer-cone.398063/#post-7643456
how to make own sandwich done diy:
https://www.diyaudio.com/community/threads/how-to-make-a-loudspeaker-sandwich-cone.402917/
i ordered for two subwoofers a pair of marble boxes but got a pair with openings on wrong sides.
Instead of complaining at the stonemason I make now a pair of marble up firing loudspeakers. I did that already:
https://www.diyaudio.com/community/...-firing-speakers.121385/page-175#post-6707993
Drivers I pretty use what I can get - some cheapo drivers which will get a faraday ring, metal foil whizzer cone and aluminium metal foil sandwiched paper cone.
Four "tweeters" per box arranged around the up firing fullrange driver will be used mainly working above 6khz for the indirect/direct/omni sound field.
The box still has to be closed on the downside (misunderstanding with the stonemason) with some rest of stone pieces glued in with silicone.
8cm reflex pipe in 50liter enclosure with 50% white wadding inside.
price point of these galala marble boxes is material and work for 60 dollars a pair in egypt. In egypt stone is cheaper than wood.
size is outside 35 cm x 35 cm x 56 cm, two centimeters thick marble
i wanted reflex ports facing to the bottom.... but got a port on the side
29mm mylar mini speakers, open on the back side will be filtered with 1 uF in 8-8 8-8 ohm arrangement but listening test will show which arrangement will do for the best sound
how to make a whizzer diy:
https://www.diyaudio.com/community/threads/how-to-make-a-whizzer-cone.398063/#post-7643456
how to make own sandwich done diy:
https://www.diyaudio.com/community/threads/how-to-make-a-loudspeaker-sandwich-cone.402917/
Attachments
frequency response of the 29mm mylar "Kleinlautsprecher" with 1 uF is 6 to 18khz with still some output on 3khz.
The backside of the tweeter is less loud between 8 and 11khz.
A test with closing the backside showed no advantage for the range above 6khz so I leave them open as a dipole.
raw 29mm driver no crossover, it goes down to 400hz
(red trace)
next image with 1uF in line
measured with spectroid app and white noise as signal
The backside of the tweeter is less loud between 8 and 11khz.
A test with closing the backside showed no advantage for the range above 6khz so I leave them open as a dipole.
raw 29mm driver no crossover, it goes down to 400hz
(red trace)
next image with 1uF in line
measured with spectroid app and white noise as signal
experimentally closed the back of the 29mm mylar dome/cone with silicone
3 khz peak drops to 2 khz, worse than before as no output this low is wishful. And FR is more tilted so no advantage for closing the driver
3 khz peak drops to 2 khz, worse than before as no output this low is wishful. And FR is more tilted so no advantage for closing the driver
getting their 8cm diameter reflex ports
forgotten marble bottom closing by the stonemason will be replaced with thick cardboard and pieces of tiles
preparation metal foil for paper cone driver
forgotten marble bottom closing by the stonemason will be replaced with thick cardboard and pieces of tiles
preparation metal foil for paper cone driver
i have glued below the carboard a cardboard brace so it can withstand the weight not sagging or deforming.
oh, oh, I read now that's a bad idea not to use sand.
You get only a bad concrete.
It does not get stiff and it diminishes too much as it cannot hold the water.
You get only a bad concrete.
It does not get stiff and it diminishes too much as it cannot hold the water.
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