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    "The Magic of the GaNTubeTM Sound"

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May 9-11 2019


AGD Productions Inc exhibits - MONACO ( Germany )

- www.hifideluxe.de -

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April 12-14 2019

AXPONA Audio Expo

AGD Productions Inc exhibits - North America USA

- www.axpona.com -


"The Magic of the GaNTubeTM Sound"

  • The Most Advanced Power Amplifier Design in Hi-End Audio
  • Gallium Nitride Power-Stage for the purest sonic experience
  • Fully integrated in Vacuum Tube
  • Up to 200W 4 Ω
  • Up to 768KHz PWM
more info
  • "The AGD Vivace Monoblocks have a frequency extension and dynamic of Guinness world record proportions. The general development of the sound-stage is above and beyond the level of the canonical hi-end power amplification. In addition, the extreme clarity of the details in the high and midrange audio spectrum are so natural and captivating that one cannot but immediately, and forever, fall in love with these beautifully crafted Amplifiers ."

    Aldo Zaninello

    Aldo Zaninello
  • "Very Natural & Effortless Sounding. Works exceedingly well with our loudspeaker"

    Allen Sides

    Allen Sides's
  • "I hear this term thrown around loosely... "disruptive product," sometimes appropriately used... however in this case, we have a winner."

    Pete Davey
    Allen Sides's
  • "It is the best sounding Hi-End Class D Amplifier I ever listened to, and the only one that convey a real three dimensional sound stage. I was simply shocked when I listened the AGD Vivace driving the most difficult load of the Martin Logan CLS full range electrostatic speakers"

    Christian Hoffmann
    Loudspeaker Designer
  • "The AGD Vivace amp is the finest class-D amp I have heard and one of the best sounding amps regardless of the configuration."

    Gary Katayama