Audio Hungary QUALITON A50i Demo
Audio Hungary QUALITON A50i Demo
  • BrandsAudio Hungary
  • Product Code: Audio Hungary QUALITON A50i Demo
  • Availability: 1
  • 3,900.00€

Available Options

Class-A integrated vacuum tube amplifier with an output power of 2 x 50 W.

The appliance can be connected to 4 Ω and 8 Ω nominal impedance speakers.

The power outputs, based on output pentodes type KT 120, were tuned to the before-mentioned nominal loads through our in-house manufactured, precision winding output transformers.

The bias control circuit plays an important role in the operation of the power output too.

This curcuit monitors the quiescent current of the output tubes and adjusts it to a preset value. Thus, all four output tubes are in perfectly equal operation states.

Out of three asymmetric and one symmetric inputs, one can choose the desired one using the front panel volume control and input selector rotary switch.

The symmetric input features a mini XLR connector. In this case too, the entire volume control and input selector unit is in full harmony with the shiny polished casing of the appliance, bringing together functionality and aesthetics perfectly.

The clearly arranged, minimalistic remote control was designed with this philosophy as well: the unique and aesthetical exterior design was always kept in mind and the usability was improved. Finally, a couple of words on the set of tubes we use: the audio signal arriving on the selected input of the appliance is received by vacuum tubes type Tungsram ECC83.

The driving voltage as well as its matching are produced by E88CC/6922s. In power output, the before-mentioned output pentodes KT 120 are in action—strictly in Class-A.  


Warranty: 2 years

  • Technical parameters
  • NameValue
    Rated output power2 x 50 W, stereo
    Total harmonic distortion< 0.75% (f = 1 kHz, rated output power)
    Frequency response30 Hz - 100 kHz (-3 dB, rated output power)
    Input sensitivity425 mV, unbalanced input
    Number of input ports3 unbalanced input per channel, 1 balanced input per channel
    Number of output ports1 output terminal pair per channel, 1 line level output per channel
    Gain+33.5 dB (8 Ohm); +25.5 dB (4 Ohm)
    Input impedance10 kOhm
    Nominal load impedance4 Ohm and 8 Ohm
    Output polaritynon-inverting
    Signal-to-noise ratio> 95 dB; output noise less, than 1 mV
    Power requirements300 W
    Tubes required4 x KT120; 4 x E88CC/6922; 2 x Tungsram ECC83
    Weight25 kg
    Dimensions35 x 21 x 40 cm

Please when order use coupon :Tubemaniac for 15% discount 



  • Worldwide shipment service where the Distributor or Dealer does not exist
  • Free ship cost in Europe for order over 500€ (except speakers, we offer  50% of ship cost)
  • Free ship cost Worldwide  for order over  2000€ (except speakers, we offer  50% of ship cost )

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