I would do it something like this - length between 1/2 to 1 meter
But you will need a smaller ribbon above 5-10khz, and impedance will still be low
And active crossover
In another thread "diy ribbon", "Andre´" has shown a long and narrow ribbon to be used down to 250hz - but the used very big NEO magnets are VERY expencive
But you will need a smaller ribbon above 5-10khz, and impedance will still be low
And active crossover
In another thread "diy ribbon", "Andre´" has shown a long and narrow ribbon to be used down to 250hz - but the used very big NEO magnets are VERY expencive
Attachments
A kit,,,who? me..? man, I am lucky if I get around to build my own
but I have enough plans, both cheap and very expencive 😉 sorry, but that wont happen
but I have enough plans, both cheap and very expencive 😉 sorry, but that wont happenHuh? What's that you said? I can't hear you. My ears are ringin'.
Anyone interested in putting kits together for 12, 24, 36, 48, and 60" ribbons? Or maybe just a couple ;-)
Anyone interested in putting kits together for 12, 24, 36, 48, and 60" ribbons? Or maybe just a couple ;-)
Did you mean the little neat thing made by daz84
Building ribbon kits... I think its almost like setting up a racecar...too many things can go wrong
Building ribbon kits... I think its almost like setting up a racecar...too many things can go wrong
I have made long ribbons and I think it would be better to split it into 3 sections connected in series... unless you make it like a planar fixed at the sides... but I think the big ones gets much too expencive
Yeah, planars may be a better way to go. I won't have any comb filtering issues with a one-piece driver. Do you know of anyone who has built narrow planars? I would want something to cover from at least 500Hz to 20KHz without significant roll-off so Bohlender-Graebners don't fit the bill. Besides, those are PRICEY!!
A 3/4" wide and 60" long ribbon with heavy NEO magnets might get you down to 500hz with steep active xo, and will do 20khz too... but you will need a good choke fore impedanse
lets see ... looking at magnet 2x1x0.75in ...lets just say you will need at least 100 of those and they may cost around 30USD each at magnetman ... well those are best N50 quality... I hope they can be bought cheaper elsewhere
Another one...1x0.75x0.5in/N45 5USD each ... you will roughly need 200 = 1000USD
If you order a large quantity directly from hongkong or whatever, you might do better, or get larger magnet at the same price
VERY expencive if it fails
Another thing is that those large neo magnets can be quite dangerous/tricky to handle
I would say, build some smaller ones, and learn how to do it best before the big adventure😉
lets see ... looking at magnet 2x1x0.75in ...lets just say you will need at least 100 of those and they may cost around 30USD each at magnetman ... well those are best N50 quality... I hope they can be bought cheaper elsewhere
Another one...1x0.75x0.5in/N45 5USD each ... you will roughly need 200 = 1000USD
If you order a large quantity directly from hongkong or whatever, you might do better, or get larger magnet at the same price
VERY expencive if it fails
Another thing is that those large neo magnets can be quite dangerous/tricky to handle
I would say, build some smaller ones, and learn how to do it best before the big adventure😉
Those are N50 quality, cheaper ones may be N35
Fore small experiments SUPER MAGNET MAN has some nice cheap discount bundles
Fore small experiments SUPER MAGNET MAN has some nice cheap discount bundles
Keep an eye out for a pair of Flatline Design Model 175s by Lewis Muratori from 1994. These use a 5/8"x69" long pseudo-true ribbon (like a real ribbon in every way except with Kapton backing to be more robust) from 350Hz to ~4kHz (+/-3dB). That's with a first order, 6dB/oct crossover, so a steeper slope should make them usable to lower frequencies. The monopole midbass is a poor match for the ribbon, but the ribbon hung on the side is great and could work very well for you for less than a new pair of BG RD75s or DIYing your own.Mike1234 said:
- JP
At the time of posting, I thought that Hawthorne Stereo in Seattle had a pair for sale, but those seem to have sold since I last looked. I suppose the typical means of Google searching and watching eBay and Audiogon are the means to try to find a pair for sale. Unfortunately, they're kind of rare, which is why I only suggested them thinking there was a pair available.Mike1234 said:
Maybe if someone knows who built the ribbons for the speaker, they'll chime in so you can look for the component.
- JP
Maybe you dont know, but there is the guy, Gratz, from Australia, and his company is Apogee acoustics http://www.apogeeacoustics.com/
Actually, besides making a new ribbon speakers he make also a ribbon replacement parts for almost all previous Apogee speakers.
So, if you could made frame and magnet array of something like one of several Apogee models there are ready made ribbons of superb quality.
There are also some new replacement ribbons, lighter and sonicaly better than old original Apogees.
On this link http://www.apogeeacoustics.com/repairsapogeeribbons.html
there is a list of various ribbons, and for sure you can find something for you.
As it is known, full ribbbon speakers are low sensitivity ones and very demanding considering the amplification (too expensive). Due to this reason, personally, I am more oriented towards hybrid speakers, midrange-tweeter range operated by ribbon and low freq. covered by cone driver.
Just to mention that on my modified Apogee Centaur Minor, freq. from 750Hz to 20KHz are covered by 6 traces 26 inch ribbon.
regards,
Actually, besides making a new ribbon speakers he make also a ribbon replacement parts for almost all previous Apogee speakers.
So, if you could made frame and magnet array of something like one of several Apogee models there are ready made ribbons of superb quality.
There are also some new replacement ribbons, lighter and sonicaly better than old original Apogees.
On this link http://www.apogeeacoustics.com/repairsapogeeribbons.html
there is a list of various ribbons, and for sure you can find something for you.
As it is known, full ribbbon speakers are low sensitivity ones and very demanding considering the amplification (too expensive). Due to this reason, personally, I am more oriented towards hybrid speakers, midrange-tweeter range operated by ribbon and low freq. covered by cone driver.
Just to mention that on my modified Apogee Centaur Minor, freq. from 750Hz to 20KHz are covered by 6 traces 26 inch ribbon.
regards,
DAMIC
Thank you. I will look at Apogee replacement ribbons. I too prefer hybrids. Mine will cross over no lower than 200Hz and cone woofers will provide the lower frequencies.
Thanks again!!
Mike
Thank you. I will look at Apogee replacement ribbons. I too prefer hybrids. Mine will cross over no lower than 200Hz and cone woofers will provide the lower frequencies.
Thanks again!!
Mike
DAMIC said:
Hello I have been on quite an adventure with my system and im now using midrange horns but now my ribbon isnt efficiant enough🙄 It was before so Does anyone know any ways to make ribbons louder?Including horn designs maybe?
P.S. Thanks tinitus I hope you meant that in a good way😉
P.S. Thanks tinitus I hope you meant that in a good way😉