XiangSheng Sound Luster D-2030A Standard Version 6550/KT88/KT100/EL34/FU50 Tube Parallel Class A Tube Amplifier

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  • KT88 Tubes
  • EL34 Power Tube
  • With 6550 Power Tube

EL34 Version: the power tube is EL34, (replace power tube: EL34, 6CA7, KT66, 6L6), using PCB design inside of amp:
KT88 Version: the power tube is shuguang KT88 , (replace power tube: KT100, 6550, KT90),  
6550 Version: the power tube is 6550 , (replace power tube: KT100, KT88, KT90), 
Technical parameters:
● Rated Output Power: 25W - 40w(depend the different tube version) 
● Frequency response: 20Hz~30kHz ±1db
● Total harmonic distortion: < 1% (1kHz)
● Input sensitivity: 500mV
● Input impedance: 100KΩ
● Output impedance: 4Ω, 8Ω
●Signal to noise ratio: 89dB
● Fore-stage tube: 6J4P×2(Center position for R1 and L1), 6N8P×2 (side for R2 and L2) ,
● Rectifier: 5Z3P×2 
● Power tube: 6550/KT88/EL34(see option )
● Volume (width × height × depth): 460 × 180 × 360mm
● Net Weight: about 21Kg
● Packqge Weight: about 26Kg
●  Triode connection
●  Using PCB design inside of amp
●  1.0mm stainless steel cabinet ​●  Germany WIMA red MKP capacitive coupling
●  The first stage of amplification uses the hexapole 6J4P (or 6J8P) for amplification. The chromaticity of the pentode is gorgeous, and the single-stage gain is high. The unit is connected to the triode to amplify the lens, further reducing the distortion and making the tone more delicate.
● The second stage promotes the use of twin-stage three-stage tube 6N8P internal parallel push. The maximum anode dissipated power of 6N8P can reach about 6W, and the internal resistance is lower after parallel connection, and the driving force is better.
●The rectification adopts the high-current rectifier T-type hook filament 5Z3PA×2 secondary rectification method, which makes the high-current supply of Class A amplification better and more abundant.


PCB desgin inside of amplifier: