output devices on X -X.5 and XA.5

Stefanoo · 4th September 2012, 04:26 PM

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?

Zen Mod · 4th September 2012, 05:56 PM

yes

Stefanoo · 4th September 2012, 06:15 PM

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!!

Stefanoo · 4th September 2012, 09:15 PM

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?

Zen Mod · 4th September 2012, 09:43 PM

plenty of info in last several months

find XA white paper on PL site

flg · 4th September 2012, 11:59 PM

Or maybe http://www.firstwatt.com/pdf/art_leave_classa.pdf
But, I think the answer is More Bias!

Stefanoo · 5th September 2012, 01:56 AM

Quote:

Originally Posted by Zen Mod

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!

Stefanoo · 5th September 2012, 01:58 AM

Quote:

Originally Posted by flg

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...

flg · 5th September 2012, 11:28 AM

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

flg · 5th September 2012, 11:30 AM

Also, isn't one a complementary follower ouput and one and version of the Aleph type output?

4th September 2012, 04:26 PM	#1
Stefanoo diyAudio Member Join Date: Apr 2006 Location: italia - ora USA -WI	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? __________________ Stefano

4th September 2012, 05:56 PM	#2
Zen Mod diyAudio Member Join Date: Jan 2003 Location: ancient Batsch , behind Iron Curtain	yes __________________ my Papa is smarter than your Nelson ! tnx to clean thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; Mighty ZM's Bloggg;I'm dumb

4th September 2012, 06:15 PM	#3
Stefanoo diyAudio Member Join Date: Apr 2006 Location: italia - ora USA -WI	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!! __________________ Stefano

4th September 2012, 09:15 PM	#4
Stefanoo diyAudio Member Join Date: Apr 2006 Location: italia - ora USA -WI	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? __________________ Stefano

4th September 2012, 09:43 PM	#5
Zen Mod diyAudio Member Join Date: Jan 2003 Location: ancient Batsch , behind Iron Curtain	plenty of info in last several months find XA white paper on PL site __________________ my Papa is smarter than your Nelson ! tnx to clean thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; Mighty ZM's Bloggg;I'm dumb


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4th September 2012, 11:59 PM	#6
flg diyAudio Member Join Date: Jul 2005 Location: North East	Or maybe http://www.firstwatt.com/pdf/art_leave_classa.pdf But, I think the answer is More Bias! __________________ “Be who you are and say what you feel because those who mind don't matter and those who matter don't mind.” Dr. Seuss

5th September 2012, 11:28 AM	#9
flg diyAudio Member Join Date: Jul 2005 Location: North East	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 __________________ “Be who you are and say what you feel because those who mind don't matter and those who matter don't mind.” Dr. Seuss

5th September 2012, 11:30 AM	#10
flg diyAudio Member Join Date: Jul 2005 Location: North East	Also, isn't one a complementary follower ouput and one and version of the Aleph type output? __________________ “Be who you are and say what you feel because those who mind don't matter and those who matter don't mind.” Dr. Seuss

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