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Planar ribbons for sale

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Africa

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Joined 2012
#1
Hi Guys,


I am based in South Africa Cape Town I wonder if anyone would be interested in buying my planar magnetic ribbons I manufacture. They are 40” Long 5 segment 18mm wide laminated to 6 micron mylar and 9 micron alum foil its a similar ribbon to the Apogee Centaur major ribbon. The impedance is 6 ohms once stacked in series. The price that I have in mind is 100USD for a pair this includes shipping via our local international postal service or 70USD without shipping. They really sound great iv pushed them down to 400hz comfortably 3rd order BTW.


Brian
 
#3
Hi George,

Here some pics so long these I have just built recently using these ribbons quoted above. The red finish was a 4 segment ribbon same width. I will post some more pics soon.

Best Regards

Brian james


WP_20141217_07_20_04_Pro.jpg

WP_20141223_17_23_14_Pro.jpg

V__971B.jpg
 
#7
Hi Nico,

I grew up in Umkomaas so I know exactly where you are LOL... I have not plotted the new ribbon design but on a basic RTA it looks good and starts to roll off between 12k and 15k. I was fortunate to own the Apogee Diva and have a very good idea of how the midrange and tweeter sound. Naturally the ribbon can be influenced by pole pieces structure ETC when plotted. I am willing to send you a free pair but I would need feedback on the forum as im confident what you hear you will be very satisfied. I have tried many types of foils ETC and this one really works exceptionally well!! I can assist you what I found works in terms of frame,s pole pieces ETC.


Regards


Brian
 
#13
Africa said:
Hi Nico,

I grew up in Umkomaas so I know exactly where you are LOL... I have not plotted the new ribbon design but on a basic RTA it looks good and starts to roll off between 12k and 15k. I was fortunate to own the Apogee Diva and have a very good idea of how the midrange and tweeter sound. Naturally the ribbon can be influenced by pole pieces structure ETC when plotted. I am willing to send you a free pair but I would need feedback on the forum as im confident what you hear you will be very satisfied. I have tried many types of foils ETC and this one really works exceptionally well!! I can assist you what I found works in terms of frame,s pole pieces ETC.


Regards


Brian
Click to expand...

Hi Africa,

I will both pay for them and give feedback. I do not believe in free-bees send me a PM and we can discuss the finer details.
 
#17
There is another Ribbon enthusiast on this forum (Jozua) who is not far from my place I am sure Jozua would be willing to have a listen and give some feedback. He is the agent for Newform research in South Africa and has been avid DIY buider of ribbons for many years. Out of interest I am running my 40" ribbon with a 40 watt proton D540 amplifier i dont need more power but I am using Neo magnets 55 x 20 x 6mm.
 
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