Audio Hungary Qualiton X200

The Qualiton X200

We are excited to announce that the latest member of our Qualiton Classic Series, the Qualiton X200 Integrated Stereo Power Amplifier, is finally here and ready to hear.

The Qualiton X200 is designed to serve analog enthusiasts who need a combination of a high-performance vacuum tube power amplifier and a versatile preamplifier, along with sophisticated technical details, built into a single chassis. In this way, perfect matching is achieved - both sonically and technically - between the main signal processing sections.

The most important aspect of the design process was to meet the widest possible range of user needs in a compact footprint. All internal circuits were designed from scratch, avoiding the usual clichés throughout, to create a complete all-rounder. The X200 can be used as a separate preamplifier, as an integrated power amplifier, as a stand-alone power amplifier with direct inputs, or as a headphone amplifier, but other configurations are possible.

“I loved the sound of this integrated amp. Is it summit-level performance? Not really, but it gets close. The MM phono input is above average, and the line-level inputs fed by a DAC sounded seriously good. Going from the VAC preamp directly into the power amp section (especially with KT-150s) was a stone-cold win. Combine build quality, usage options, and you have a lovely package for the price.”

— Part Time Audiophile

The low noise analog front-end is built around a wideband and transparent circuit, and features a phono preamp with enhanced precision as well. Line level and subwoofer outputs are absolute necessary in this category, these ports are included on the back. We've added a real specialty too: a built-in, studio grade Parallel Equalizer. This kind of tools is primarily used as a master channel effect in recording studios, to bring fresh air into the mix, as a finishing touch. We've found that this effect can also be a huge help at home as well, as it can breath new life into certain, not so vivid records.

The balanced power amp is based on KT120 (optionally KT150) beam tetrodes and our latest, fully symmetrical output transformer design. Due to the symmetrical circuitry, we were able to further reduce the output noise of the output stage. In addition, our new BIAS section on the front panel makes it really easy to check and fine-tune the bias levels of the output tubes.

Output Power

100 Watt/channel into 8 Ω

Gain

+35.5 dB (8 Ohm)

Input Impedance

10 kΩ - Unbalanced

20 kΩ - Balanced

Input Sensitivity

460 mV, direct balanced input

460 mV, preamplifier input

Power Bandwidth

27 Hz - 70 kHz

(-3 dB, rated output power)

THD

< 0.5%

(f = 1 kHz, rated output power)

Signal-to-noise ratio

> 100 dB

Load Impedance

4 ohm to 8 ohm

Power requirements

720 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

23 kg

Dimensions

43 x 20 x 47.5 cm

LINE - PHONO - HPA

Input impedance - Phono

47 kOhm || 120 pF

Input impedance - Line

25 kOhm || 10 pF

Max. input signal - Phono

40 mV (f = 1 kHz)

Max. input signal - Line

8 V

Gain - Phono

+46 dB (f = 1 kHz)

Gain - Line

0 dB

Max. deviation from RIAA curve Phono +/- 0.5 dB

Frequency response - Line

4 Hz to 1 MHz (-3 dB)

THD - Phono

< 0.03% (f = 10 kHz)

THD - Line

< 0.001% (f = 20 Hz to 20 kHz)

THD - EQ

< 0.002% (f = 20 Hz to 20 kHz)

Signal-to-noise ratio - Phono

> 60 dB (1 V, without A-filter)

Signal-to-noise ratio - Line

> 90 dB (1 V, without A-filter)

Signal-to-noise ratio - EQ

> 90 dB (1 V, without A-filter)

Bass boost in setting I - EQ

+ 5.6 dB

Bass boost in setting II - EQ

+ 7.6 dB

Treble boost in setting I - EQ

+ 6 dB

Treble boost in setting II - EQ

+ 8 dB

Rated output power HPA

2 x 0.3 W (RL = 32 Ohm)

Gain HPA

-6 dB (RL = 32 Ohm)

Frequency response HPA

4 Hz to 1 MHz (-3 dB)

THD HPA

< 0.008% (RL = 32 Ohm, 0.125 W)

Signal-to-noise ratio HPA

> 95 dB (RL = 32 Ohm, rated output)