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Stereo Tube Amplifierl Hifi Radio Amplifier|Vacuum Tube Amp


  A CFA135B-S1-BR-S139B1 is an enhanced version for Schrödinger Audio CFA153B-S1-B 2.0 Channel Stereo Vacuum Tube Bluetooth Amplifier, with the USB input and FM Radio functions. allows user to enjoy music and radio channel in convenience way.


  • Small Size Tube Amplifier design, suitable for using at home, office, shop and other comparable spaces.

  • 2.0 Channel Amplifier with 6p3 Vacuum Tubes. Unlike the solid state amplifier this Vacuum Tubes Amplifier provides professional, detail and warm tones. Low Distortion, High Stability.
  • Build-in FM Radio with blue light display.
  • AUX, CD, USB and Bluetooth connection with music device. Connection with Loudspeakers and Headphones.
  • High Quality Gold plate connectors on Back Panel.
  • Entry Level pirce, general affordable price.

Schrödinger Audio CFA153B-S1-BR-S139B1 Vacuum Tube Amplifier with Bluetooth and FM Radio


    Schrödinger Audio provides wide range of audio products. Its have good matched Headphones and Loudspeakers as customers option.

Learn More:

Schrodinger Audio HeadphonesSchrodinger Audio Аудио системаSchrodinger Audio Hi-Fi оратор



      Vacuum Tube Amplifier

  • Tubes: 6P3x2,6N2x1
  • Output Power: 4W + 4W (8Ω) RMS Output
  • Frequency Response: 20Hz ~ 20kHz (-1.5dB)
  • THD: <1% (1kHz)
  • Signal-to-Noise Ratio: 80dB
  • Input Sensitivity: 0.775V (0dB)
  • Input Impedance: 100KΩ
  • Load Impedance: 8Ω (typ)
  • Headphones Plug: 3.5mm
  • Operating Voltage: As Customer Requirement 110 to 240V)
  • Power Dissipation: 45W (typ)
  • Sound Input: AUX, CD, USB, Bluetooth, Build in FM radio
  • Display: Blue LED.
  • Bluetooth Transfer Distance: 10m (Max)
  • Dimension(mm): 223 x 184 x 139
  • Net Weight: 5.0kg (Approximate)


  • Speaker unit: 3.5” full range, one piece/wood container
  • Input Power: 15w
  • Frequency Response: 77Hz ~ 20KHz
  • Impedance: 8Ω
  • Sensitivity: 81dB
  • Size (per piece): 95x103x150mm
  • Net Weight (per piece): 0.98kgs

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