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Old 27th October 2015, 05:36 PM   #1
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Default New AMT driver?

I found this product when searching for air motion tweeters on Alibaba. It looks awfully similar to the BG Neo8, but is apparently a new AMT design. The specs say it's useful down to about 300 Hz which sounds great. I got a price quote of $65 for a single unit which isn't bad (but unfortunately the shipping is $75 to Sweden). Is it a new driver, and if so, has anyone got some comments about/experience with it?
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Old 28th October 2015, 01:22 PM   #2
WrineX is offline WrineX  Netherlands
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im afraid its a normal planar, still pretty decent for that price. (but photo's of the inside would reveal allot)
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Old 28th October 2015, 03:42 PM   #3
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It looks like they make AMT's, but this is probably not one of them. What, at first glance, seems to be a pleated diaphragm looks more like printed tracks on closer inspection. The curving of the tracks visible through the lowest level of slots tends to confirm this.

The idea of slots in the verical plane is wrong for an AMT, so the product is being mis-described.

Keith
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Old 28th October 2015, 04:05 PM   #4
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Thanks, makes sense. Seems to be basically a copy of the BG Neo8S. Confusing that they describe it as "air motion transformer/technology" though.
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Old 29th October 2015, 08:56 AM   #5
ds23man is offline ds23man  Netherlands
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I did some measurements on such a chinese Neo8 copy. They really suck!
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Old 30th October 2015, 12:57 AM   #6
WrineX is offline WrineX  Netherlands
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Quote:
Originally Posted by ds23man View Post
I did some measurements on such a chinese Neo8 copy. They really suck!
hmm how do they suck ? something as simple as a neo... im sure they just copied there layout 1:1 making some metal buying so,me neo's

i cant do it but if you do have a Punching machine ... what can go wrong
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Old 30th October 2015, 08:46 AM   #7
ds23man is offline ds23man  Netherlands
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They do not go as low as they promiss, distortion figures are way up compared to the original.
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Old 30th October 2015, 08:52 AM   #8
ds23man is offline ds23man  Netherlands
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Red: Chinese copy, Blue: Neo8s
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Old 30th October 2015, 08:56 AM   #9
ds23man is offline ds23man  Netherlands
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Neo8s THD
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Old 30th October 2015, 08:56 AM   #10
ds23man is offline ds23man  Netherlands
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Chinese THD
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