The ultimate CCS-X-BOSOZ

Magura · 19th May 2005, 01:40 PM

I have been working on the ultimate version of the CCS-X-BOSOZ.

The idea behind is to go all the way with the best in components and thermal management.

This means thermally coupled fets, the best caps available in all positions and CLC filter before the regulated PSU.

I have one small problem though, as I have designed the PCB in PCB123, so I need a little help to be able to post the layout, as I don't have a scanner (need to print and scan)...anyone??

The file is the left half of the amp layout, the right half is simply mirrored on a copymachine.

What do you think?

Magura

Magura · 19th May 2005, 03:28 PM

Just got some help from the homies, so now it can be downloaded as a PDF.

Magura

kilowattski · 19th May 2005, 05:45 PM

Why not ground plane the board and have all the analog grounds meet at one point on the board?

Magura · 19th May 2005, 06:17 PM

Quote:

Originally posted by kilowattski
Why not ground plane the board and have all the analog grounds meet at one point on the board?

Would a star ground be better than just copper all over the component side as ground plane?

Magura

Magura · 19th May 2005, 06:28 PM

It is based on this schematic,

http://web.vip.hr/pcb-design.vip/xccs-bls.html

Added PTFE film/foil bypass caps and moved the ground to the component side of the board. Series output resistor changed to 50R.
680R power resistors made of 4 *2K7 metal film 3W in parallel.

Magura

steenoe · 20th May 2005, 07:53 AM

Nice layout, Magura. I was thinking of using PTFE caps for bypassing all the electrolytics on the X-CCS BosoZ too

Looks really good with provision for them on the board.
Maybe you want to make more room for the 10uF outputcap?
You might want to go crazy and mount some wild outputcap

Who knows?
I guess you will be using the circuit with this beauty

:
http://www.briangt.com/gallery/magura-40stepattenuator

Steen

kilowattski · 20th May 2005, 08:59 AM

http://www.epanorama.net/documents/g...n_circuit.html

apassgear · 20th May 2005, 03:06 PM

Magura,

I was not able to open the circuit file you offered on the first post.

But based on the circuit offered later, from Kristijan I guess, it seems that there is no need for two CCS.

Some time ago I did discuss the point with Kristijan and he agreed on this point and I can see others on this forum using only one CCS.

Hope to hear from you on the outcome of this pre

apassgear · 20th May 2005, 03:19 PM

BTW, your switch for the attenuator is just fantastic. You are able to outdo any commercial offering, including the Master!!!

steenoe · 20th May 2005, 03:31 PM

Quote:

BTW, your switch for the attenuator is just fantastic. You are able to outdo any commercial offering, including the Master!!!

Yep, quite impressive

Seems like a "No compromise" project. Typical Magura project, I might add

Steen.

19th May 2005, 05:45 PM	#3
kilowattski diyAudio Member Join Date: Aug 2003 Location: Long Island, New York	Why not ground plane the board and have all the analog grounds meet at one point on the board? __________________ ----------------------------------------------- Kilowattski

19th May 2005, 06:28 PM	#5
Magura diyAudio Member Join Date: Oct 2003 Location: Denmark, Viborg	It is based on this schematic, http://web.vip.hr/pcb-design.vip/xccs-bls.html Added PTFE film/foil bypass caps and moved the ground to the component side of the board. Series output resistor changed to 50R. 680R power resistors made of 4 *2K7 metal film 3W in parallel. Magura __________________ Everything is possible....to do the impossible just takes a little while longer. www.class-a-labs.com

20th May 2005, 08:59 AM	#7
kilowattski diyAudio Member Join Date: Aug 2003 Location: Long Island, New York	http://www.epanorama.net/documents/g...n_circuit.html __________________ ----------------------------------------------- Kilowattski

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
To BOSOZ or not to BOSOZ... please comment.	spence	Pass Labs	4	27th February 2012 02:57 AM
Poll! What do you use in your X-BOSOZ or BOSOZ for Volume Control and Input Selector?	promitheus	Pass Labs	87	19th February 2006 03:15 PM
The ultimate THX set-up	Sir Trefor	Multi-Way	7	27th April 2005 03:53 AM
X-bosoz vs. CCS X-bosoz, how does the sound compare?	acliao	Pass Labs	14	26th February 2004 12:55 AM


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

20th May 2005, 07:53 AM	#6
steenoe diyAudio Member Join Date: Mar 2004	Nice layout, Magura. I was thinking of using PTFE caps for bypassing all the electrolytics on the X-CCS BosoZ too Looks really good with provision for them on the board. Maybe you want to make more room for the 10uF outputcap? You might want to go crazy and mount some wild outputcap Who knows? I guess you will be using the circuit with this beauty : http://www.briangt.com/gallery/magura-40stepattenuator Steen

20th May 2005, 03:06 PM	#8
apassgear diyAudio Member Join Date: Nov 2002 Location: Viña del Mar, Torreon	Magura, I was not able to open the circuit file you offered on the first post. But based on the circuit offered later, from Kristijan I guess, it seems that there is no need for two CCS. Some time ago I did discuss the point with Kristijan and he agreed on this point and I can see others on this forum using only one CCS. Hope to hear from you on the outcome of this pre

20th May 2005, 03:19 PM	#9
apassgear diyAudio Member Join Date: Nov 2002 Location: Viña del Mar, Torreon	BTW, your switch for the attenuator is just fantastic. You are able to outdo any commercial offering, including the Master!!!

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read