US $29,900 pair



The Valkyrie 2 is a mono bloc power amp GM70 vacuum tubes on its output stage running in pure class-A to deliver the best quality of 18 watt / RMS of pure triode characteristic power. Each monoblock is equipped with one Russian Svetlana GM70 vacuum tube working in single ended class-A. The GM70 direct heated triode is essentially a high-reliability vacuum tube for Russian military and has the most outstanding performance and reliability among the output tubes that modern high-end tube amps can adopt. In particular, the GM70 direct heated triode has excellent linearity and driving capability that can not be compared with any similar tube. The output transformer of a typical vacuum tube amplifier uses an E-I transformer with an efficiency of 70-80% consisting of an E-I core. The Valkyrie 2, however, employs a 95% efficient toroidal output transformer to provide excellent drive ability without loss, even with low-noise, low-efficiency speaker systems. The toroidal output transformer, which allows the final output stage of the tube amplifier to maintain ultra low band and wide band characteristics, while maintaining the minimum transmission loss, is the ideal combination for any speaker system that will be matched together with the Analog Design Lab's triode circuit ensure perfect sound quality.


  • Direct Heated, Single Ended 18W
  • Wideband Toroidal Transformer, Highly damping factor
  • Triode highest purity sound quality
  • Single Ended Pure A Class
  • Toroidal design with power, heater, output and choke
  • High Voltage 1000V Toroidal Transformer
  • Air gapped toroidal choke transformers
  • Air gapped Toroidal Output transformer
  • Russian original Ceramic Gold-plated Socket
  • 6N1P-EV front, 6N6P-I driver & GM70 output stage
  • Teflon insulation High voltage insulation adopted
  • WIMA acid MKP class capacitor
  • 1% metal film precision resistor
  • Swiss Neutrik XLR balanced input
  • Germany WBT 24K gold-plated RCA unbalanced input
  • Germany WBT 24K Gold Plating Binding Posts


  • Single Ended RMS 18W
  • Output Impedance : 4Ω , 8Ω
  • Rated Input Sensitivity : 0.5V RMS
  • WiMA MKP polypropylene capacitor
  • Input Impedance : BAL - 200kΩ , UNBAL - 100KΩ
  • Tubes: 6N1P-EV,  6N6P-I,  GM70
  • Damping Factor > 10
  • Hum & Noise < RMS 0.1mV
  • No white noise
  • S/N Ratio: 90 dB
  • THD : 0.1% (15W, 1kHz), 1.5% (18W, 1kHz)
  • Frequency Response: 2Hz~70kHz (-3㏈/10W)
  • Consumption : 150W /Each (117V, 230V AC / 50Hz 60Hz)
  • Dimension : 270×190×390(WHD)mm
  • Shipping Weight: 20kg /Each

  • The spec of the product can be subject to change at any time without prior notice.

  Technical Articles

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BTO, Shipment in 2 months by DHL / FedEx
International price $29,900 pair ( USD )

free worldwide shipping include insurance


The Valkyrie 2 offers manufacturer’s warranty of ONE YEAR from the date of purchase. The warranty is transferable to a second owner with no questions asked.


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