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-   -   Improved/simplified X-100???? (http://www.diyaudio.com/forums/pass-labs/55570-improved-simplified-x-100-a.html)

Circlomanen 17th April 2005 05:08 PM

Improved/simplified X-100????
 
http://img93.echo.cx/img93/1024/horisontalx1008fk.jpg

Circlomanen 17th April 2005 05:17 PM

I got this idea on the way to work this morning.
Its a horisontal version of the X-100 I think...?
You dont have to use any complimentary pairs or anything.Totally balanced symmetrical pushpull amp with folded cascode fronstage and true complimantary-only n-channel- outputstage.
This is probably the next amp to build for me.
Mr Pass??? Any thoughts on this one???

Circlomanen 17th April 2005 05:19 PM

The inputsection can be simplified and improved with depleationmode-fets (or tubes) as in my earlier posts on supersymmetric circlotrons.

Circlomanen 18th April 2005 06:06 AM

I guess my question is borderering to blasphemy, but I think its a very intresting design. Seems simpler than what the X serie amp from Passlabs seems to be, but still retaining the basic qualities of Mr Pass excellent amps.
Its just a thought I had. Nobody has any comments????

(I meant X-150.)

john-china 18th April 2005 09:11 AM

i enjoy it
 
Mr. Pass ,pls say something

Joe Berry 18th April 2005 12:26 PM

I would first try moving the front end positive supply connections to the other rail, i.e. don't cross-connect them the way you do for the outptut stage. If that works, you'll be able to filter the front end B+ rather heavily for better PSRR. Good luck!

LBHajdu 18th April 2005 02:27 PM

I think once built and demonstrated to work well people will have more comments, especially if you post some pics. What kind of wattage could you expect, as drawn? Do you think it will sound like an X-amp? How much bias will it need ?

Levente Hajdu

Stefano 18th April 2005 02:44 PM

Great job! It has the semplicity that i was willing for! Please let us know if it may be applied to a working prototype!

steenoe 18th April 2005 04:05 PM

Quote:

Nobody has any comments????
Sure:) Here comes this "Circleguy" out of nowhere and spits out sch's like mad. I am impressed, i guess a lot of us are. Even NP might be impressed, sure Mr. Rollins has to be, he always tells us to built something on our own:D Well, if all your schematichs would turn out to be great sounding amps, I can only say that you are quite a genious, and I mean it:cool: Where do you get all these ideas from?? For sure, if one is dedicated enough, you can put the needed efforts into a thing like this. But still, you are amazing:cool: Lets hear some of these amps playing:) I for one would love to lend an ear:cool:

Steen:)

Circlomanen 18th April 2005 05:01 PM

Quote:

I would first try moving the front end positive supply connections to the other rail, i.e. don't cross-connect them the way you do for the outptut stage. If that works, you'll be able to filter the front end B+ rather heavily for better PSRR. Good luck!
Could you show me a drawing or something, I would be very greatfull.:)


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