Why do Proac 2.5 clones fail? - diyAudio
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Old 26th April 2012, 01:53 PM   #1
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Default Why do Proac 2.5 clones fail?

I asked in an earlier thread
copy Proac?
if the ProAc Response 2.5 can be successfully cloned, and the consensus was that though smart people worked hard at it, the clones did not duplicate the ProAc Response 2.5.

Why did the Response 2.5 clones fail?

Thanks.
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Old 26th April 2012, 05:54 PM   #2
jgv is offline jgv  Spain
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You can find an extensive article from Troels here: http://www.audiokit.it/itaeng/Altopa...ne%20paper.pdf
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Old 26th April 2012, 06:27 PM   #3
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Quote:
Originally Posted by river251 View Post
I asked in an earlier thread
copy Proac?
if the ProAc Response 2.5 can be successfully cloned, and the consensus was that though smart people worked hard at it, the clones did not duplicate the ProAc Response 2.5.

Why did the Response 2.5 clones fail?

Thanks.
Beautiful speaker though, I remember admiring them when I was a kid reading stereophile.
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Old 27th April 2012, 04:49 AM   #4
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Quote:
Originally Posted by jgv View Post
You can find an extensive article from Troels here: http://www.audiokit.it/itaeng/Altopa...ne%20paper.pdf

Thanks. I've read a lot by Troels, and he apparently provides a lot of great engineering advice, but I've never seen him say "I put my clone next to the real 2.5 and they were identical."

What is so hard about reverse engineering a speaker when you can get the exact, original drivers? Surely a crossover schematic is available or doable? Everyone seems to be nailing the boxes, this doesn't seem difficult either.
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Old 27th April 2012, 06:46 AM   #5
jgv is offline jgv  Spain
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Did you read the link I posted? Cause that's not what he says there, in fact he finds a lot of problems with the original 2.5 ones.
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Old 27th April 2012, 06:51 AM   #6
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Quote:
Originally Posted by jgv View Post
Did you read the link I posted? Cause that's not what he says there, in fact he finds a lot of problems with the original 2.5 ones.

Apologies, I will read it more thoroughly.
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Old 27th April 2012, 07:04 AM   #7
Luke is offline Luke  New Zealand
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from memory the drivers are modified for Proac, so they are not quite standard drivers...
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Old 27th April 2012, 09:24 AM   #8
jgv is offline jgv  Spain
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Anyway the measurements shown from Stereophile from the originals show a response very close to the clones, so the drivers must not be that different.
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