Technology:

• Power transformer : using imported 0.35 core, pretty neat, several complex vacuum impregnation.
• Chassis : Professional design, the surface does not have a screw.
• Output transformer : Stretching potting outer garment, potting moistureproof processing.
• Power parts : Dual high-voltage full-wave rectifier tube 315V +315 V, use of imported iron core as power inductors, camp-type power supply filtering,  ruby supply filtering.
• Enlarge parts : Use Japan SUN classic lines, every channel uses two three common cathode tube parallel amplification with high output voltage, drive current is large and other characteristics, voice full speed, treble transparent, smooth.

 Materials:

• Power transformer : using 96-60 large power core design power of 200W, high flux thick silicon steel imported 0.35. Oxygen-free copper enameled wire using domestic manufacturers layered tightly wound, with very low load current characteristic, no vibration, no buzz.
• Output transformer : divided into segments of tightly wound, using the Japanese ultra-thin electrically insulating paper of pure wood (thickness of only 0.06MM, withstand voltage 2000V).
• Capacitance : Imported fever capacitors do filtering (Netherlands, Philip, Japan ELNA, Japan Ruby, etc.). Coupling using the Netherlands Philip tonic special grade audio capacitors, transparent sound elegant.
• Dimensions : width 315 depth 280 height 155  

Basic technical parameters:

• Output Power: 12W * 2 (ultra-linear connection).
• Frequency Response: 20Hz - 28KHz.
• Output impedance: 4,8Ω.
• Total Harmonic Distortion: ≤ 1% (1kHz).
• Input Sensitivity: 750MV.
• Input impedance: 100KΩ (two input signals)
• Dimensions (W × D × H): 310 × 268 × 165mm.
• SNR: 88dB.
• Voltage amplifier tubes: 6N9PJ × 2.
• Power output tube: Dawn export EL34B × 2.
• Rectifier tube: 5Z3PJ × 1.
• Power transformers: new imported 0.35, stacked thick 60MM (96-60).
• Output transformer core: new imported 0.35 dedicated audio .
• Speakers outputs : high level export-oriented plugs, with transparent banana inputs
• input voltage: only 220v version available

The finished assembled standard amplifier description:

• Power transformer 96-60.
• Epoxy potting dedicated audio output transformer (66-36).
• SHUGUANG for export EL34B CPI tube output.
• New 6N9PJ parallel amplification, the intensity is two times to the normal line.
• Hand scaffolding welding.
• The standard amplifier view:
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• The finished assembled product can be ungraded with two bigger output transformers(76-40), you need pay 20USD.
• Use HIFI tube amps Precautions:

  1. Tube amp must connected with speakers before turning ON. Strictly prohibit send signals to amp without connected loads(speakers) or load short circuit when the switch is ON.
  2. Too high or too low power supply voltage does irreversible harm to the amp,preferably less than 5% of the specified voltage. If your mains voltage exceeds this value, often best to use with the AC power supply.
  3. Temperature is higher when tube amps working, placing attention to ventilation, cooling.
  4. In the boot or just shut down for a period of time (within 30 minutes) Do not spill liquid on the tubes.
  5.  You should take about 100h time to operate the amp.RUN-IN to the amp gives it's best and stable sound.so during the first 100h use time the sound maybe is not the best,you can also use your own run-in method.

   

  All  tube amplifier used with stereo mode: 2 speakers, L and R.

  Normally there are 6 RCA outputs are for 2 different impedence which are 4 ohms or 8 ohms than: +8L, +4L, -0L, -0R, +4R, +8R
  Example when your speakers are 8 ohms, you plug +8L and -0L for left speaker, -0R and +8R for right .

  And for 6 ohms impedence speakers you can plug to either 8 ohms mode or 4 ohms mode.

  Some tube amplifier power cable(plug) is not included, because of the electrical outlet format, but you can always use the PC power cable(plug) in 110v- 240v

  
  Our Tube amplifier guarantee :
  Tube amplifier Guarantee:  3 months for tubes, 12 months for the machine. Some tubes' guarantee extended to 6 months or 1 year(indicated in the product description)