Start a SOZ - Page 2

Jean-Paul_2 · 13th June 2009, 08:13 PM

Here for the guys who can not wait:

http://www.pingbattery.com/servlet/t...LiFePO4/Detail

Magura · 13th June 2009, 09:10 PM

Quote:

Originally posted by Jean-Paul_2
... the partlist, stereo.

I like:
- Mundorf capacitors,
- PRP resistors.

The batterie design with charger coming soon (starting wenesday).

If you really wanna spend that kind of money on caps, I suggest you look elsewhere than Mundorf. There are quite a few better industrial caps out there.

Magura

Jean-Paul_2 · 14th June 2009, 09:33 AM

thanks Magura, and there are?

Magura · 14th June 2009, 10:31 AM

Vishay makes some pretty neat naked film caps, Wima, and Rifa makes some hefty film caps as well.
At any rate, you'll have a hard time not getting more for your money from any of the above mentioned, than from Mundorf.

Pic is an example of the Vishay naked PP film caps I recently bought, 164uF 500V.

Magura

woody · 14th June 2009, 10:50 AM

The circuite and parts list you have is for a ZEN amplifier not
a SOZ amplifier. And why not build a later version of the ZEN
they are suposed to be much better?

Magura · 14th June 2009, 10:53 AM

Quote:

Originally posted by woody
The circuite and parts list you have is for a ZEN amplifier not
a SOZ amplifier. And why not build a later version of the ZEN
they are suposed to be much better?

Hey good catch Woody.

...but the original Zen is a good learning experience, coupled with a sound that some people actually like a lot.

Magura

revintage · 14th June 2009, 11:00 AM

Hello Jean-Paul,
Nice project! A question though:
You have choosen gain to be x1(1k/1k). If this is your intention, why not go for a source-follower instead? Same gain and high Zin.

Jean-Paul_2 · 14th June 2009, 11:34 AM

All this supposition...

This amplifier is my first project with semiconductors. My preference are tubes. But only bad guys never change the opinion.

And thanks, I know that other parts can be used. I know WIMA, and take a look a the new products. Big film capacitors with very good specifications.

I will built this one, SOZ or ZEN, I don´t care. Do the measurements and my comments.

jkeny · 21st June 2009, 10:21 AM

Jean-Paul,
I too am about to use these LiFePO4 batteries but to power a DAC - I believe that they will be wonderful powering your preamp. I'm interested in your charger schematic.

Jean-Paul_2 · 21st June 2009, 01:25 PM

Hi Keny,

next week, we start the braining:
- LTC balancing up to 1000VDC,
- and specific charger for 1 to N batteries.

What is the supply voltage of the preamp?

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13th June 2009, 08:13 PM	#11
Jean-Paul_2 diyAudio Member Join Date: May 2007	Here for the guys who can not wait: http://www.pingbattery.com/servlet/t...LiFePO4/Detail

14th June 2009, 09:33 AM	#13
Jean-Paul_2 diyAudio Member Join Date: May 2007	thanks Magura, and there are?

14th June 2009, 10:50 AM	#15
woody diyAudio Member Join Date: Jan 2002 Location: Tyrone Ga. U.S.A.	The circuite and parts list you have is for a ZEN amplifier not a SOZ amplifier. And why not build a later version of the ZEN they are suposed to be much better?

14th June 2009, 11:00 AM	#17
revintage diyAudio Member Join Date: May 2007	Hello Jean-Paul, Nice project! A question though: You have choosen gain to be x1(1k/1k). If this is your intention, why not go for a source-follower instead? Same gain and high Zin.

14th June 2009, 11:34 AM	#18
Jean-Paul_2 diyAudio Member Join Date: May 2007	All this supposition... This amplifier is my first project with semiconductors. My preference are tubes. But only bad guys never change the opinion. And thanks, I know that other parts can be used. I know WIMA, and take a look a the new products. Big film capacitors with very good specifications. I will built this one, SOZ or ZEN, I don´t care. Do the measurements and my comments.

21st June 2009, 10:21 AM	#19
jkeny Banned Join Date: Feb 2007 Location: Dublin	Jean-Paul, I too am about to use these LiFePO4 batteries but to power a DAC - I believe that they will be wonderful powering your preamp. I'm interested in your charger schematic.

21st June 2009, 01:25 PM	#20
Jean-Paul_2 diyAudio Member Join Date: May 2007	Hi Keny, next week, we start the braining: - LTC balancing up to 1000VDC, - and specific charger for 1 to N batteries. What is the supply voltage of the preamp?