Muzishare X7 KT88 Tube Integrated amp

[size=18]Technical Parameters:[/size]

• Speakers output power: 25W + 25W (RMS triode mode)
  45W + 45W (RMS ultra-linear mode)
  
  

• Headphone output power: 300ohm with 900mW ， use 270  like a  basic divide to calculate the output power , for example  270 / 300ohm =0.9w for 300ohm headphone  ,   270 / 32ohm = 8.5w for 32ohm headphone
  
  
• Input impedance: 100KΩ[size=18](Hifi exquis 1101017)[/size]
  
  
• Output Impedance: 4Ω - 8Ω
  
  
• SNR: 92dB[size=18](Hifi exquis 1101017)[/size]
  
  
• output balance of the left and right: <0.5db[size=18](Hifi exquis 1101017)[/size]
  
  
• Input Sensitivity: 280mV;  520mV (pre input)
  
  
• Harmonic distortion: 1% (1kHz) Frequency Machine: 15Hz ~ 30kHz (-1.5dB)
  
  
• Anode voltage: about 420v
  
  
• Net weight: 22.5kg[size=18](Hifi exquis 1101017)[/size]
  
  
• Package weight: 25kg
  
  
• power consumption: 260W[size=18](Hifi exquis 1101017)[/size]
  
  
• Vacuum tube are Special Customized:
  
  
• Preamp tube:  12AX7 × 1(Equivalant ECC83,CV4004  ECC803,5751)
  Preamp tube: 12AU7 × 2(Equivalant ECC82,5814,6189 CV4003)
  Power tube: KT88 × 4 (Equivalant 6550)
  Rectifier: 5AR4 × 1 (Equivalant GZ34)[size=18](Hifi exquis 1101017)[/size]
  
  

• Dimension:(W × D × H): 410mm x 335mm x 198mm[size=18](Hifi exquis 1101017)[/size]
  
  
• Power supply voltage: ~ 110-120v and 220-240v ± 5% (50/60Hz)
  
  
• Working conditions: Temperature: 0 ºC ~ 40 ºCHumidity: 20% to 80%
  
  
• Storage conditions: Temperature: -20 ºC ~ 70 ºC Humidity: 20% to 90%
  
  

[size=18]Features:[/size]

• Handmade, using scaffolding welding[size=18](Hifi exquis 1101017)[/size]
  
  
• using two high quality and wide frequency response EI output transformer
  
  
• Using a customize Z11 core toroidal power transformer[size=18](Hifi exquis 1101017)[/size]
  
  
• Amplification and drive part use SAR4 rectifier .
  
  
• Use 2X12AX7 and 2X12AU7 as amplifiaction,
  
  
• Use special high selected KT88 tube as push pull power amp lamp,providing switch for the triode connnection and ultra-linear connection modes.The triode connection mode is more suitable for the voice and the sound is more soft, delicat as well as nature. The ultra-linear connection is suitable for the big scence, the sound is more open and lively.
  
  
• It has a pure power amplifier ans it can conncet with an independent pre-amp's signal input.[size=18](Hifi exquis 1101017)[/size]
  
  
• It has a phono stage input function, which can be connect directly with a MM Vinyl turntables
  
  
• There is a power tube current control button and an electric meter dial.
  
  
• Infrared remote control function[size=18](Hifi exquis 1101017)[/size]
  
  
• Power Mute delay function
  
  
• Selection of Japanese high-grade ALPS motor potentiometer.
  
  
• Easy installation of the plug-type vacuum tube shield[size=18](Hifi exquis 1101017)[/size]