Recent Comments

• 'Project 4'
• 10 June 2014 at 06:07AM
• Hi Radhu,
  
  Thanks for your interest.
  
  First of all, this approach is quite expensive and time consuming. (Honestly, I wouldn't start it, if I knew that it would turn to be that complex).
  
  You have to be prepared to spend around $2000 for parts and match to 1-2% two pairs of tubes at 3-5 points (at least).
  
  The idea of this post was to show an alternative approach to high fidelity DAC design: omitting some parts (like filters) and still have a great result.
  
  So, apart from digital board, no documentation (adjustment instructions or complete set of schematics) was made.

• Headphone Amplifier
• 31 May 2014 at 08:48AM
• Do you have any noise from switchmode power supply there?