Feliks Audio

Envy 300B Headamp Preamp


  • Class A Single-ended transformer coupled, balanced amplifier, powered by the legendary 300B tubes:
  • Developed to drive even the most demanding headphones with up to 8 Watts of power
  • Exclusive finish and extensive customization options
  • Multiple inputs and outputs for maximum functionality
  • Balanced input / output XLR connections


Standard Edition includes:

  • Electro Harmonix Gold 300B power tubes
  • Premium copper signal wiring

Upgrades Performance Edition includes:

  • Full Music 300B power tubes
  • UPOCC (single crystal copper) signal wiring


  • Class A Single-ended transformer coupled amplifier
  • Tubes
    • Power tubes: 300B
    • Driver tubes: PsVane CV-181 mk2 (6SN7)
  • Front Inputs
    • 2x unbalanced RCA inputs (IN1, IN2)
    • 1x balanced XLR input (IN3)
  • Rear Outputs
    • 1x pair of pre-amplifier output as RCA
    • 1x pair of pre-amplifier output as XLR
  • Front Outputs
    • 1x 4-pin XLR headphone jack
    • 1x 6.3mm headphone jack
  • Weight: 15,1kg (without packaging)
  • Dimensions: – 35x33x18,5cm (LxWxH) – without tubes


  • 1x Envy Amplifier
  • 1x Matched pair of driver tubes CV-181(6SN7)
  • 1x Matched pair of power tubes 300B
  • AC cord User Manual Warranty Card


If not in stock, 5 week delivery time from date of purchase. 

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