• Item: MC preamplifier  
  • Type: Hiraga  
  • Posted: 15 February 2013  
  • Builder: noyan  
  • Country: Turkey  
  • Comments: 4  

Hiraga mc preamplifier

Firstly i built a very successful MM preamp. I modified the Audionote M7-M10 schematics. Now, it use 4*6072+2*6N30P-DR. Sounding incredible natural, sweet and detailed (Thanks to 6N30P-DR SUPER TUBE). Then i decided to built a Hiraga MC pre with 8 pins IC sockets on main board. I prepared (soldered) 2SA1038 and BC560 transistor pairs on seperate 8 pins sockets. Now, i can easily insert any of them in the sockets located on the board and compare the sound. Before this off course i am making adjustments with trimpots to ensure ''0'' Volt at the enter of the preamp. I can say that; this preamp and DENON 103R is sounding excellent with both transistors. But, my favorite is 2SA1038. I used 500.000uf capaciy for each channel. Electrolytic caps are 6800uf Elna Cerafine, cables are teflon coated silver. I will install a power switch and a socket for charging the batteries externally.


  • yannig
  • 14 March 2013 at 10:24PM
  • Interesting project, especially 2SA1038 transistor.
    I do not like very much BC560 wich sounds flat.

    don't you try 2SB737R, MAT02, MAT03, or one of the THAT300 serie ?
  • noyan
  • 18 April 2013 at 06:17AM
  • Hi,
    Yes, i will try other transistors as well.
  • tropentarn
  • 2 June 2013 at 07:49AM
  • Nice job. What is the gain of this MC preamp?
  • noyan
  • 29 June 2013 at 11:12AM
  • Thanks. I have not measured yet.

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