Alpair 12 in OB with 15" - Page 2 - diyAudio
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Old 10th February 2011, 05:50 PM   #11
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Quote:
Originally Posted by nicoch46 View Post
I not like the idea to put a cheaper 80/90 caps in series...
Active. A system of this caliber should be bi-amped.

dave
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Old 10th February 2011, 07:32 PM   #12
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Dave in active , the AE dipole 15/18 plus hypex plate/xo is the killer

I consider the alpha15 nice for cheaper passive ,plus can be found in EU !!!
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Old 26th July 2011, 07:44 PM   #13
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Like to resurrect this thread if I may. I have currently OB's with a pair of 15" Alphas and a B200 per side, driven actively via a DCX2496. I've just purchased from Scott a pair of Alpair 12's, which I'm hoping should be a straight swap for the B200's, given I'm crossing over at 200Hz. what's the panel think?
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Old 26th July 2011, 08:39 PM   #14
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A good place to start.

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Old 26th July 2011, 08:56 PM   #15
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Sounds encouraging Dave. So the 12 should work ok in my OB's then? Do you think it will be an improvement on the B200?
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Old 26th July 2011, 09:19 PM   #16
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I'm not Dave, but yes and a big one, respectively, is my take.
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Old 26th July 2011, 09:51 PM   #17
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An A12 wouldn't be able to handle an OB without helper woofer like the B200 can, but with bass support A12 should get better DDR, more even response, and more extended top end. Your B200 already have phase plugs so dispersion at the top should be similar. And, given my last set of B200 measures, about the same efficiency.

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Old 28th July 2011, 08:10 PM   #18
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Good news, thank you gents. I look forward to trying them out.
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Old 17th August 2011, 06:43 PM   #19
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Hello!

I'm currently playing with the OB's of TB W8-1808 + Alpha 15A and I have liked very much of the sound. I got an idea to built same kind of OB's with Alpair 12 elements. Do I get any advantage (or disadvantage) by using Alpairs insted of Tb?

Currently I have 1.st order filter for TB at around 450-500 hz, and 2nd order filter for Alphas at around 130-150 hz. They seem to be working very well together. I have also L.pad controller for TB in order to match the levels seamlesly. Should they work also with Alpairs?
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