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this comparison is not as absurd as it seems ...
for supertweeter duty in a line array for home use above a 8" Radian Planar Mid-Tweeter crossed at 5-6 khz ...
16 X Beyma Cp21F or 10 X Aurum Cantus G3 ?
on paper Aurum Cantus is over 100 db efficient in that frequency range and handles 60 watts per ribbon which works out to serious SPL and it is known to sound really good ...
but it is also known to fail for apparently no reason ...
i actually heard Beyma bullets and they sound decent but at 25W AES on paper they aren't any louder than Aurum Cantus and aren't that much cheaper either - so why not just use Aurum Cantus that is known to sound amazing ?
well because the Beymas aren't known to fail left and right like Aurum Cantus ...
except MINE actually was dead and i had to replace the diaphragm ...
so you see it's actually a fairly apples to apples comparison here ... cost per array would be fairly close and output would be fairly close and sensitivity too ... reliability would favor Beyma but sound quality would favor Aurum Cantus ...
one benefit of Beyma is it could be actively run directly off the amp maybe with a capacitor ... but the Aurum Cantus would probably need at least a 2nd order passive protection circuit ... but that isn't really a significant enough downside to matter ... with a 5-6 khz crossover passive components aren't that expensive as the values are small ...
but really i can't tell which makes more sense ?
on one hand it makes sense to do a line array out of line sources like ribbons ...
on the other hand with ribbons you would need an active crossover, a passive protection circuit and then 10 transformers ( one per ribbon ) ... while with the Beyma CP21 bullets you would just need the active crossover ...
of course the transformers are included with the ribbons it's just annoying to think you're paying for 10 transformers just to run some supertweeters ...
what do you think ?
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