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Old 4th September 2012, 05:26 PM   #1
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Default output devices on X -X.5 and XA.5

I have a curiosity:

are the same output devices employed on the first X Series the same on the later X.5 and XA.5?
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Old 4th September 2012, 06:56 PM   #2
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yes
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Old 4th September 2012, 07:15 PM   #3
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thanks

I was thinking of buying either the X600.5 or the XA200.5 if I could find them used would be even better.
I would pair them with my B&W 800Signature.

I currently own the X250 which is a very nice amp, and I was either thinking of trying to build one myself first and then once I had fun buying one of these two beasts or just skipping the fun part and go into serious stuff!!
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Old 4th September 2012, 10:15 PM   #4
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Also if anybody knows, what is the difference between X series and X.5 series.
I have read that the latest X.5 sounds significantly better.
What is this due to?
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Old 4th September 2012, 10:43 PM   #5
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plenty of info in last several months

find XA white paper on PL site
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Old 5th September 2012, 12:59 AM   #6
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Or maybe http://www.firstwatt.com/pdf/art_leave_classa.pdf
But, I think the answer is More Bias!
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Old 5th September 2012, 02:56 AM   #7
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Quote:
Originally Posted by Zen Mod View Post
plenty of info in last several months

find XA white paper on PL site
where can I find this paper?
I have looked on Pass lab site but couldn't find it!
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Old 5th September 2012, 02:58 AM   #8
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Quote:
Originally Posted by flg View Post
Or maybe http://www.firstwatt.com/pdf/art_leave_classa.pdf
But, I think the answer is More Bias!
maybe between X.5 and XA.5 there is more bias.
However I think that between the X and X.5 series the front end must be different giving equal output stage, this is my guess...
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Old 5th September 2012, 12:28 PM   #9
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Well, I wonder why you are interested in those two models. One has double the bias and 4 times the power of the other?
Maybe the article ZM is refering to is this one:

http://www.firstwatt.com/pdf/art_peanut_butter.pdf
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Old 5th September 2012, 12:30 PM   #10
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Also, isn't one a complementary follower ouput and one and version of the Aleph type output?
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