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  • Description

    Boyuu A10 Tube Amplifier EL34 Single-Ended Class A Lamp EL34 Amp


    PTP without cover: is a Luxury version , components are soldered by hand (point to point),  easily to upgrade,  output transformers size is 76x40,  but without tube cover

    PTP with cover: is a Luxury version , components are soldered by hand (point to point), 

      easily to upgrade,  output transformers size is 76x40,  with tube cover


    PCB without cover:  use a PCB architecture for inside components, output transformers size is 66x36,  but without tube cover

    PCB with cover:  use a PCB architecture for inside components, output transformers size is 66x36,  with tube cover


    Basic technical parameters:

      Voltage tubes : 6N2 × 2. 
      Power tubes : SHUGUANG EL34-B x 2.
      Rectifier tube: 5Z4P ×1 
    Output Power: 12W * 2 (ultra-linear connection)
    Frequency response: 20Hz - 28KHz
    Output Impedance: 4ohms - 8ohms
    Total Harmonic Distortion: ≤ 1% (1kHz)
    Input Sensitivity: 750MV 
    Input impedance: 100KΩ (two input signals
    Dimensions (W × D × H): 310 × 268 × 165mm
    SNR: 88dB 
    inpute voltage: 220-240v 50/60hz
    Use imported HIFI capacitor filter capacitor (Netherlands's Philip, Japan's ELNA, Japan's Ruby, etc.).
    Coupling capacitances adopt Netherlands, Philip HIFI-class audio-specific capacitors; sound transparent is elegant, passionate.
    Corners aluminum column: high-grade aluminum CNC machining, diamond knife speed car system.
    ALPS’s volume potentiometer, Philip’s audio capacitor for Coupling and Power filter, Panasonics audio capacitor for Cathode compensation, Taiwan’s Military-grade  5 ring resistanc
    adopt Japanese SUN classic lines improvement, every channel uses 2pes three common cathode tube parallel amplification with high output voltage
    Has characteristics of driving current, full sound fast, transparent treble and smooth
     Adopt high-voltage full-wave rectifier tube up to 315V +315 V, import core power inductors,  r-type power supply filtering, import Philip / ruby supply filtering 
    Pure hand-scaffolding with Star Architecture(BOYUU’s special architecture)
    Power tranformer:
    Use 0.35, 96-50 large power core manufacturing, design power of 200W to ensure adequate power and low temperature rise.
    Use high-quality oxygen-free copper enameled wire enameled layered tightly wound, with extremely low no-load current characteristic, quiet operation, no vibration, no hum.
    Output Transformers:
    Use potting output transformer with 0.35 thick high-flux silicon steel to ensure stability and reliability, especially in damp places, have a more reliable
    Output transformer, is high-purity copper wire enameled wire package, and layered segmented string and connection method, three clips two wound
    Output transformer with high-grade stretch cover, surface temperature paint handling, and bright fringes processes.
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Boyuu A10 Tube Amplifier

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