atelier 13 audio
QUALITON A50i
“Audio Hungary ... get ready to own one”
So why would you acquire the Qualiton A50i? For every audiophile, there are more times than less where we would want to listen so well ... across the genres ... to have a purely musical experience. I couldn’t have imagined that the "elusive" magic would come from Hungary, but now living with it, I know it's impossible to be anything else.
"MEPHISTO WALZ"
Listz-ian prodigy !
AUDIO HUNGARY QUALITON A50i
Class A / PSE Integrated Amplifier
Class-A integrated vacuum tube amplifier with an output power of 2 x 50 W in PSE configuration. The amplifier 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-wound output transformers.
The bias control circuit plays an important role in the operation of the power output too. This circuit 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.
The KT150 tube can be used in place of the stock KT120.
The balanced input features a mini XLR connector. The clearly arranged, minimalistic remote control was designed in line with the unique and aesthetic exterior design, and the usability was enhanced.
Finally, a couple of words on the set of tubes we use :
The audio signal arriving on the selected input of the amplifier is received by Tungsram ECC83 vacuum tubes. The driving voltage, as well as its matching, are produced by E88CC/6922s.
In the power output stage, the aforementioned KT 120 kink-less tetrodes are in action - strictly in Class-A.
Product of Hungary
$ 8,500 Chrome/Silver
$ 8,000 Black
Warranty : 2 years (6 months tubes)
Specifications
Topology
Tube PSE Class A
Output Power
50 Watt/channel into 8 Ω
Gain
+33.5 dB (8 Ohm); +25.5 dB (4 Ohm)
Input Impedance
10 kΩ
Input Sensitivity
425 mV, unbalanced input
Power Bandwidth
30 Hz - 100 kHz (-3 dB, rated output power)
THD
< 0.75% (f = 1 kHz, rated output power)
Signal-to-noise ratio
> 95 dB
Output noise
less than 1 mV
Power requirements
300 W
Tubes required
4 x KT120
4 x E88CC
2 x Tungsram ECC83
Inputs
3 x RCA
1 x XLR
Outputs
2 x Speaker [ 4 & 8 ohm taps ]
1 x Line pair
Weight
25 kg
Dimensions
35 x 21 x 40 cm
Audio Hungary QUALITON A50i Integrated
YouTube Demo
@ Chameleon Audio, Greece
September 18, 2018
Courtesy of Chameleon Audio Greece
Gallery
A50i
FACTORY TOUR
VIDEO 2
VIDEO 3
REVIEWS
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