Audio Hungary QUALITON X200 Integrated Amplifier

Audio Hungary QUALITON X200 Integrated Tube Amplifier

100 Watts per Channel. KT120 Tube Amplification. MM Phono Stage. Headphone Amplifier. Parallel Equalizer. Automatic Bias System.

The Audio Hungary QUALITON X200 Integrated Amplifier is a remarkably versatile high-end vacuum tube amplifier that combines a powerful stereo output stage, a sophisticated analogue preamplifier, a precision MM phono section and a dedicated headphone amplifier in one carefully engineered chassis.

Delivering a manufacturer-rated 2 × 100 watts into compatible 4-ohm to 8-ohm loudspeakers, the Qualiton X200 provides the power and flexibility required for a wide range of high-fidelity stereo systems.

Its standard output stage uses four KT120 beam tetrode tubes, supported by two 6922 and two 12AX7 small-signal tubes. Optional factory-supported output tube configurations include KT150 and KT170 valves.

The amplifier also features custom-designed toroidal transformers, an advanced Automatic Bias System, direct power amplifier inputs, a dedicated subwoofer output and Qualiton’s studio-inspired Parallel Equalizer.

Designed for analogue enthusiasts who demand both performance and flexibility, the X200 can serve as the central component of an ambitious high-end audio system.

QUALITON X200 – A True High-End All-Rounder

Unlike a conventional integrated amplifier that simply combines input selection, volume control and a stereo output stage, the Qualiton X200 offers several distinct operating possibilities.

Its versatile architecture allows it to function as an integrated amplifier, as a power amplifier through its dedicated Direct Inputs, as a preamplifier through its appropriate line-level outputs, and as a dedicated headphone listening solution.

It also incorporates a moving-magnet phono preamplifier and an adjustable Parallel Equalizer, reducing the need for multiple external components.

This combination makes the X200 particularly attractive for listeners building a sophisticated analogue system around vinyl playback, digital sources and high-quality loudspeakers.

100 Watts per Channel of Vacuum Tube Power

The Qualiton X200 delivers a manufacturer-rated 100 watts per channel through a powerful push-pull output stage.

This substantial output capability distinguishes it from many lower-powered integrated valve amplifiers.

With appropriately matched speakers, the additional available power can be useful when reproducing wide musical dynamics and maintaining adequate headroom at the desired listening level.

The amplifier is designed for loudspeaker loads between 4Ω and 8Ω.

Correct system matching should always consider the actual loudspeaker impedance curve, sensitivity, room dimensions and listening distance.

KT120 Power Tubes with Optional KT150 and KT170

The standard X200 output stage uses four matched KT120 vacuum tubes.

The KT120 is a powerful beam tetrode valve intended for demanding audio amplification applications.

The amplifier is designed around the KT-series output tube family, with manufacturer-supported alternatives including KT150 and KT170.

Qualiton also identifies KT90 compatibility through its Automatic Bias System.

Different tube types have different electrical characteristics, so tube selection must always follow the manufacturer’s current guidance and approved operating configuration.

The standard factory tube complement consists of:

• 4 × KT120 output tubes
• 2 × 6922 small-signal tubes
• 2 × 12AX7 small-signal tubes

Custom Symmetrical Output Transformer Design

Transformer engineering is central to Qualiton’s amplifier design philosophy.

The X200 uses the manufacturer’s advanced fully symmetrical output transformer design.

According to Qualiton, this symmetrical approach is intended to reduce unwanted noise in the output stage.

The output transformers are designed and manufactured in the company’s own transformer workshop using high-permeability toroidal magnetic cores.

Specialised multilayer and sectional winding arrangements are employed to support the intended electrical performance at both low and high frequencies.

The transformers are subsequently enclosed in shielded metal housings and potted with epoxy compound to reduce mechanical vibration.

Inside Qualiton – Custom Toroidal Transformers

This authentic technical photograph from the Chameleon Audio media library illustrates Qualiton’s custom output transformer construction.

The output transformer provides the essential electrical interface between the vacuum tube output stage and the loudspeaker.

Transformer construction affects power handling, frequency response and impedance matching, making it one of the most important elements of a high-power valve amplifier.

Custom Power Transformer with Double Electromagnetic Shielding

The X200 also features a custom-manufactured power transformer.

Qualiton develops its power transformers around high-permeability toroidal cores and carefully selected winding arrangements.

The manufacturer specifies double electromagnetic shielding to help control unwanted transformer-related interference.

Epoxy potting is used to minimise mechanical vibration and associated noise.

The result is a dedicated transformer design intended to support the electrical requirements of the amplifier’s high-power vacuum tube circuit.

Advanced Automatic Bias System

The Qualiton X200 Automatic Bias System continuously monitors the behaviour of the output tubes and manages their operating bias conditions.

According to the manufacturer, this system is designed to equalise the quiescent currents of the power tubes and help maintain the intended operating conditions of the output transformer.

It also incorporates a soft-start function that limits excessive tube current during initial power-up and reduces unwanted switching noises.

These features simplify ownership compared with tube amplifiers that require frequent routine manual bias adjustment.

Front-Panel Bias Monitoring

In addition to its automatic bias circuitry, the X200 includes a dedicated front-panel BIAS section for checking tube operating conditions.

The manufacturer describes this feature as a convenient way to monitor and adjust bias settings where required by the specific operating procedure.

For normal use with approved tube configurations, the Automatic Bias System provides ongoing regulation.

Important: Any user adjustment, tube substitution or servicing must follow the appropriate X200 manual. Never attempt internal servicing of a high-voltage vacuum tube amplifier.

Integrated Moving-Magnet Phono Preamplifier

A significant advantage of the Qualiton X200 is its integrated MM phono stage.

Designed for moving-magnet cartridges and compatible high-output cartridge arrangements, the phono section allows a suitable turntable to connect directly to the amplifier.

Its published electrical characteristics include:

• 47kΩ input impedance
• 120pF input capacitance
• +46dB gain at 1kHz
• RIAA equalisation accuracy within ±0.5dB
• Maximum phono input signal of 40mV at 1kHz

For low-output moving-coil cartridges, an appropriate external MC phono preamplifier or matching step-up transformer is required.

Phono compatibility should be checked against the chosen cartridge’s output voltage, loading requirements and gain needs.

Studio-Inspired Parallel Equalizer

The X200 incorporates a distinctive feature rarely found in conventional valve integrated amplifiers: a studio-inspired Parallel Equalizer.

Qualiton developed this circuit to provide adjustable low-frequency and high-frequency tonal enhancement.

Parallel equalisation is associated with professional audio processing techniques, where an equalised signal can be combined with an unprocessed signal to achieve controlled tonal changes.

In the X200, the equaliser can be used to tailor playback to recordings, system characteristics and personal preferences.

Its purpose is to provide an additional listening option rather than permanently alter every source.

Parallel Equalizer – Adjustable Bass and Treble

The manufacturer provides two selectable levels for bass and treble enhancement:

• Bass EQ setting I: +5.6dB
• Bass EQ setting II: +7.6dB
• Treble EQ setting I: +6dB
• Treble EQ setting II: +8dB

The following original image from the Chameleon Audio media library illustrates the X200’s Parallel Equalizer section.

The equaliser provides additional control for listeners who want to adapt the amplifier’s tonal presentation to particular recordings or listening conditions.

Seven Analogue Inputs

The Qualiton X200 provides seven analogue input connections per channel, covering conventional line-level listening, vinyl replay and direct power amplifier operation.

• 4 × unbalanced stereo Line Inputs
• 1 × unbalanced stereo MM Phono Input
• 1 × unbalanced stereo Direct Input
• 1 × balanced stereo Direct Input

The four conventional line inputs are intended for compatible analogue sources such as DACs, network streamers and CD players.

The MM input is dedicated to compatible phono cartridges.

The balanced and unbalanced Direct Inputs are provided for using the X200 as a dedicated power amplifier with an external preamplifier or compatible control component.

Balanced Direct Input for External Preamplifiers

The balanced Direct Input allows the X200 to be integrated with an appropriate external preamplifier.

This is particularly useful for listeners who want to retain the X200’s KT-series tube power amplifier section while using a separate high-end preamplifier.

Safety: Direct power amplifier inputs must only be used with a compatible source that provides reliable external volume control. Before selecting a Direct Input, reduce the upstream volume to a safe minimum and follow the manufacturer’s operating instructions.

Precision Relay-Controlled Source Selection

The X200 uses precision Japanese miniature relays to manage input switching.

The relays feature low contact-resistance switching elements with gold-overlaid silver contact materials.

Front-panel status indicators identify the selected input, providing clear control over the amplifier’s various operating configurations.

Motorised ALPS Volume Control

Qualiton equips the X200 with a high-quality motorised ALPS analogue volume potentiometer.

The precision Japanese component provides smooth volume adjustment from the front panel and through the supplied remote control.

The volume system is part of the amplifier’s integrated preamplifier section.

Its use with the various operating modes must follow the manufacturer’s routing and control instructions.

Built-In Headphone Amplifier

The X200 also functions as a dedicated headphone amplifier.

The manufacturer specifies a stereo headphone output rated at 2 × 0.3W into 32Ω.

Its published technical data includes headphone distortion below 0.008% at 0.125W into 32Ω.

This provides a practical listening option for compatible headphones without requiring a separate headphone amplifier.

Headphone sensitivity and impedance should be considered before choosing a suitable pair.

Dedicated Subwoofer and Line Outputs

Beyond the speaker outputs, the X200 provides a useful selection of signal outputs:

• Unbalanced Line Output
• Unbalanced Subwoofer Output
• Unbalanced Equalizer Output
• Unbalanced Headphone Output
• Balanced Power Output

The dedicated subwoofer connection is particularly useful for listeners developing a full-range stereo system with suitable active subwoofer integration.

The exact output routing and signal levels should be checked in the manufacturer’s manual when connecting external amplifiers, processors or subwoofers.

Three-Function Remote Control

The Qualiton X200 includes a minimalist remote control with three functions:

• Volume Up
• Volume Down
• Mute

Unlike the remote supplied with certain other Qualiton models, input selection is not listed as a standard X200 remote-control function.

Carefully Selected Premium Components

The X200 combines selected vacuum tubes with specialised audio components, including:

• Matched output tube quartets
• Low-noise selected preamplifier tubes
• Gold-plated ceramic valve sockets
• Gold-plated audio terminals
• Film capacitors in the audio circuitry
• Selected ceramic composition resistors
• High-temperature-rated power supply capacitors

These components are used alongside the company’s own transformer engineering and analogue circuit designs.

Frequency Response and Distortion Performance

The manufacturer specifies two power amplifier frequency response conditions:

5Hz to 85kHz (-3dB) at 1 watt and 27Hz to 70kHz (-3dB) at the full 100-watt rated output.

For the power amplifier, Qualiton publishes total harmonic distortion below 1% across the rated power range within a 20Hz–20kHz measurement bandwidth.

The analogue line preamplifier section has its own separate specifications, including frequency response from 4Hz to 1MHz (-3dB).

Because the preamplifier and power amplifier serve different functions, their electrical performance figures should not be confused.

System Matching and Loudspeaker Compatibility

The X200 offers substantial output capability for a vacuum tube integrated amplifier, but loudspeaker matching remains important.

Its rated load range is 4Ω to 8Ω.

When selecting loudspeakers, consider their sensitivity, nominal and minimum impedance, room size and the desired playback level.

Chameleon Audio can assist with selecting suitable loudspeakers and configuring the X200 for the intended system.

QUALITON X200 vs QUALITON A35i

The X200 and Qualiton A35i Integrated Amplifier represent different approaches within the Audio Hungary product range.

The A35i is a more straightforward 35-watt integrated tube amplifier.

The X200 delivers 100 watts per channel and adds a built-in MM phono stage, dedicated headphone amplifier, Parallel Equalizer, Direct Inputs and additional output connections.

The A35i is an attractive choice for a simpler stereo installation, while the X200 provides greater flexibility for a more elaborate analogue system.

Expandable with Dedicated High-End Components

Listeners interested in a separate analogue preamplifier can explore the Qualiton range at Chameleon Audio.

Because the X200 includes dedicated power amplifier inputs and various line-level outputs, it offers useful integration possibilities when the system evolves.

Always confirm the correct connection method and signal routing with the manufacturer’s operating documentation.

Dimensions, Weight and Ventilation

The Qualiton X200 measures approximately 43cm wide, 47.5cm deep and 20cm high.

Its net weight is approximately 23kg.

The manufacturer lists electrical power consumption of approximately 200W at idle and a maximum of 720W.

Like other high-power vacuum tube amplifiers, the X200 requires suitable ventilation and a stable equipment support.

Provide adequate clearance around the exposed valves and never touch hot tubes during operation.

Qualiton X200 Key Features

• High-end 100W per channel stereo vacuum tube integrated amplifier
• Four KT120 output tubes as standard
• KT150 and KT170 factory-supported output tube options
• Two 6922 and two 12AX7 small-signal tubes
• Advanced symmetrical output transformer design
• Custom-made toroidal power and output transformers
• Proprietary Automatic Bias System
• Integrated soft-start protection
• Front-panel bias monitoring section
• Built-in high-quality MM phono preamplifier
• Studio-inspired Parallel Equalizer
• Four conventional RCA line inputs
• Dedicated balanced and unbalanced Direct Inputs
• Integrated headphone amplifier
• Subwoofer, Line and EQ outputs
• Relay-controlled input selection
• Motorised ALPS volume control
• Three-function remote control
• 4Ω to 8Ω loudspeaker load compatibility

Qualiton X200 Technical Specifications

Specifications are based on Qualiton’s current published X200 technical data. Power output, response and distortion figures refer to the stated measurement conditions. Available valve configurations and technical details may change without notice.

What Is Included in the Box?

• Qualiton X200 Integrated Amplifier
• 4 × KT120 power tubes
• 2 × 6922 tubes
• 2 × 12AX7 tubes
• Remote control
• Standard mains power cable
• TX10 Torx wrench
• Pair of gloves
• User manual

QUALITON X200 Frequently Asked Questions

How powerful is the Qualiton X200?

The X200 delivers a manufacturer-rated 100 watts per channel into suitable 4Ω to 8Ω loudspeaker loads.

Which vacuum tubes does it use?

The standard configuration includes four KT120 output tubes, two 6922 and two 12AX7 small-signal tubes.

Can I use KT150 or KT170 tubes?

Yes. Qualiton lists KT150 and KT170 as optional supported output tube types. Follow the manufacturer’s current instructions for approved configurations.

Does the X200 feature Automatic Bias?

Yes. The proprietary system monitors and regulates the operating conditions of the output tubes and incorporates soft-start management.

Does the X200 have a built-in phono stage?

Yes. Its integrated MM phono preamplifier is specified for a 47kΩ / 120pF load, with +46dB gain.

Can I connect a low-output MC cartridge directly?

Not through the MM input without suitable additional equipment. A compatible MC step-up transformer or external MC phono stage is required.

What is the Parallel Equalizer?

It is a studio-inspired tonal processing feature that allows selectable bass and treble enhancement.

Can the X200 be used only as a power amplifier?

Yes. The dedicated balanced and unbalanced Direct Inputs support integration with an appropriate external preamplifier.

What precautions apply to the Direct Inputs?

Use a source with suitable external volume control, set volume to minimum before switching and follow the X200 manual’s signal-routing instructions.

Does it have a headphone amplifier?

Yes. The manufacturer rates the headphone output at 2 × 0.3W into 32Ω.

Does it have a subwoofer output?

Yes. A dedicated unbalanced Subwoofer Output is included.

How many analogue inputs are available?

Seven per channel: four Line, one MM Phono, one unbalanced Direct and one balanced Direct Input.

Can I select the input using the remote control?

The standard supplied remote provides volume up, volume down and mute. Input selection is not listed as one of its functions.

What is the frequency response?

The power amplifier is rated from 5Hz to 85kHz at 1W and 27Hz to 70kHz at 100W, both at -3dB.

Can the X200 drive 4-ohm speakers?

The amplifier is designed for nominal 4Ω to 8Ω loads. Complete electrical loudspeaker matching should be checked.

How does the X200 compare with the A35i?

The X200 provides 100W per channel and additional phono, headphone, equalisation and direct amplifier features. The A35i is a simpler 35W integrated tube amplifier.

How much does it weigh?

Approximately 23kg.

Where can I buy the Qualiton X200 internationally?

Contact Chameleon Audio for current tube configurations, available finishes, price and international shipping arrangements.

Official Manufacturer Information

Qualiton X200 Official Product Page and Technical Specifications

Download the Qualiton X200 User Manual (PDF)

Why Choose the Audio Hungary Qualiton X200?

The Audio Hungary Qualiton X200 Integrated Tube Amplifier combines substantial vacuum tube power with a level of functionality rarely found in a single integrated component.

With 100 watts per channel, precision custom toroidal transformers, Automatic Bias management, built-in MM phono amplification, dedicated headphone output, flexible analogue connections and a studio-inspired Parallel Equalizer, the X200 is a versatile foundation for an ambitious stereo system.

For listeners seeking the convenience of integrated amplification without giving up opportunities for future system expansion, the X200 is a particularly distinctive Qualiton design.

100 Watts per Channel. KT-Series Tube Amplification. One Remarkably Versatile Analogue System.

Qualiton X200 at Chameleon Audio

Contact Chameleon Audio for current price, finish and tube configurations, availability, system matching and worldwide delivery arrangements.