HIFI Audio Marantz 7 12ax7b Preamplifier Vacuum Tube Amplifier Diy Kit 12 Times Magnification 

Input sensitivity: 3mv
Magnification: 12 times

Features:

  • The power transformer of this machine is a 76*40 annealed sheet, shielded between the primary and the secondary, and the filament winding is shielded by other windings to obtain an excellent signal-to-noise ratio.
  • The potentiometer is a Taiwan high-precision 16-type double potentiometer, the first choice for fever!
  • Vacuum tube: shuguang 12A7B*3+6Z4*1
  • The coupling capacitor is the world-renowned German WIMA electrodeless coupling capacitor, and SPIRIT electrodeless coupling is a fever capacitor.
  • The case is made of high-quality 1mm steel plate after being polished and chemically treated with high-temperature paint. The case feels very good, looks beautiful, and has a strong atmosphere.
  • The power supply part is welded with a universal development board, and a multi-level CRC circuit is used to effectively reduce the bottom noise.
  • This tube amplifier kit comes with two scaffolding strips. The scaffolding strips can simplify the difficulty of scaffolding. The left and right sound channels can be welded symmetrically, which is convenient, fast, and beautiful.


 

 

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