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Multi-Way Conventional loudspeakers with crossovers

Gamma Horn loaded Ribbon VLD-13 - Application Advice Needed
Gamma Horn loaded Ribbon VLD-13 - Application Advice Needed
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Old 9th June 2010, 09:22 PM   #31
Hjalmar is offline Hjalmar  Lebanon
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Hello PMIK,

adding a supertweeter will add "air", generally you will attanuate the high frequencies.
Leaf tweeters are great, but need to be x-overed quite high to avid distortion.
Good luck with your project.

Med ventlig hilsen,

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Old 30th September 2012, 08:58 AM   #32
DrBoar is offline DrBoar  Sweden
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I have had the VLD-13 for 20 years, they are now scrapped. When I bought them they costed the same as a Seas Vifa tweeter, at that time a competetive price. Now they 200-250 dollars each and for that there are many better options around. As opposed to a dome or cone tweeter a soft metal ribbon as no mechanical protection what so ever against low frequency movement/signals so steep crossover is needed. The horn unloads below 1 kHz. A 6 db filter at 4 kHz still leveaves visable motion of the ribbon. And the HiFi News Garage door track at high volumes will burn/shread the ribbons right off.

When Stanly Kelly at Decca designed these 60 years ago they were ahead of the pack but things have moved on.
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Old 30th September 2012, 09:58 AM   #33
Sjef is offline Sjef  Netherlands
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6 db/oct filtering is the stupiest thing you can do with ribbons, even at 10 khz crossocer frequency it's no good. I have had those ribbons as well and they really do need at least 18 db/oct filtering to sound good.Even then they can not be used any lower then 3khz. I ended up using a 30db/oct filter at 3.5khz wich sounded best (mighty good actally, even for todays standards) Again, 6db filtering is the wordt thing to do, they sound pretty bad that way.
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