NAP-140 Clone Amp Kit on Ebay - regulated supply

[logod]

Hi,


I buy a Nap 140 Clone on Ebay
(same model as this H-140 amplifier kit [H-140] hifidiy.net)


I would like to build a regulated sypply like on NAP 250 amp.


For the regulated board, I found these circuit diagrams :
- Neil McBride design (http://www.neilmcbride.co.uk/jknamps.html)
- Avondale design (http://i40.tinypic.com/vo7t68.jpg)


But this design is complex. There are other design, for example :


- A Simple Capacitance Multiplier Power Supply For Class-A Amplifiers
(Capacitance Multiplier Power Supply Filter)
- Hexo II, Hexo III and Fredy 408 PSU (http://amplifredy.spaces.live.com)

Hexo II (concept : Dominique JACOVOPOULOS)




Hexo III (concept : Dominique JACOVOPOULOS)



Fredy 408(concept : Dominique JACOVOPOULOS)






The reporche often made with stabilized power supply is to erase the bass. A simpler design such as the Hexo or Fredy PSU seems to give a good compromise.


Which bord will be the best and what modifications nedd to adapte it to the NAP 140 Clone board ?