Xinxin FU50 5Z9P Tube Amplifier HIFI EXQUIS Class A Handmade with Triode Ultra-linear Swith Lamp Integraed Amp

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Technical parameters:

  • Rectifier Tube: 5Z9P , (equivalent 5Ц9C)
    Preamp tubes :  2x Chinese 6j8p,(equivalent 6SJ7)
    Power tubes :  Chinese Fu50 ×2, 
  • Rated output power: 10wx2 and 12wx2 switching
  • Frequency response : 20Hz - 20KHz (HIFI EXQUIS 1101017
  • Total Harmonic Distortion : 3% (1kHz) (HIFI EXQUIS 1101017)
  • Input Sensitivity : 500mV - 2V
  • Dimensions (W × H × D ):330 × 270 × 170mm
  • Net Weight: about 10kg (HIFI EXQUIS 1101017)
  • Input voltage: 110-120v or 220-240v 50/60hz for worldwide
  • HIFI EXQUIS offer US, EU or AU standard power cable


  • It has a power tube connection mode switch, between triode connection with 10w and Ultra-linear connction mode 12w , the effect is different. (The default two small switches are dialed back together, is the triode connection 10w, all dial forward, is the super linear connection 12w output power)
  • Bass: Full-bodied, full of strength, deep dive!
    Midrange: soft and sweet, round and transparent, strong sense of hierarchy!
    Treble: clear and delicate, bright texture, good penetration





Please pay attention when you plug the Fu50 and 5Z9p tube,  you need find this marker to match with special socket position: