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McIntosh MHA200
Valve Headphone Amplifier

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McIntosh MHA200 Valve Headphone Amplifier

2-Channel Vacuum Tube Headphone Amplifier

  • Compact footprint: just 6-1/8" (15.6cm) x 9-1/8" (23.2cm)
  • 4 selectable headphone impedance ranges
  • Balanced and unbalanced analog inputs
  • Balanced stereo or dedicated Left & Right outputs

Treat Your Headphones to McIntosh Vacuum Tube Amplification.

The MHA200 Vacuum Tube Headphone Amplifier is designed for discerning headphone enthusiasts who demand the most from their headphones. Its versatile set of connectivity options, including balanced inputs and outputs, allows for nearly all headphone types to be connected to enjoy an extraordinary personal listening experience.

McIntosh MHA200 2-Channel Vacuum Tube Headphone Amplifier

Triode Vacuum Tubes

A pair of 12AT7 and 12BH7A dual triode vacuum tubes power the compact MHA200. The 12AT7 vacuum tubes amplify the incoming audio signal while the 12BH7A tubes provide the power to drive the output to your headphones with low distortion. The MHA200 uses a pair of Unity Coupled Circuit output transformers to deliver pristine audio to your ears. The Unity Coupled Circuit is the same technology McIntosh was founded on in 1949 and is still used in the vaunted full-size home audio vacuum tube amplifiers such as the timeless MC275 and the more recent MC1502. Indeed, the MHA200 shares many physical design traits with the aforementioned vacuum tube amplifiers.

McIntosh MHA200 2-Channel Vacuum Tube Headphone Amplifier

Connectivity Options

A wide assortment of connectivity options come on the MHA200. For attaching your headphones, there are 3 options: a pair of 3-pin balanced XLR connectors for dedicated Left and Right balanced output; a 4-pin balanced XLR connector for balanced stereo output; and a 1/4" stereo headphone jack.

McIntosh MHA200 2-Channel Vacuum Tube Headphone Amplifier

Balanced and Unbalanced

For connecting the MHA200 to your home music system's source components, it has 1 set each of both balanced and unbalanced inputs. Thanks to the MHA200's small size of just 6-1/8" (15.6cm) wide x 9-1/8" (23.2cm) deep and its balanced inputs, it can be placed close to your listening position for ease use, with long balanced audio cables connecting it to your audio system without fear of signal loss.

McIntosh MHA200 2-Channel Vacuum Tube Headphone Amplifier

Personal Listening Experience

The MHA200 takes advantage of unique McIntosh technologies to create the best possible personal listening experience. The Unity Coupled Circuit transformers have been adapted to produce 4 headphone impedance ranges of 32 – 100, 100 – 250, 250 – 600, and 600 – 1,000 Ohms at 500mW so that virtually every headphone can receive legendary McIntosh sound quality and performance.

McIntosh MHA200 2-Channel Vacuum Tube Headphone Amplifier

Unity Coupled Circuit

We custom designed and manufactured the output transformers to match the tube amplifier section to the headphone output section in order to ensure maximum power transfer for various headphone loads. Instead of having to adapt to the impedance of the headphones with voltage gain in the input stage, the Unity Coupled Circuit output transformers' secondary windings ensure the full power of the MHA200 is available regardless of the impedance of your headphones. A custom, high-performance, and highly efficient toroidal power transformer with low mechanical hum and a low magnetic field, which helps reduce electrical noise, provides clean power to the amplifier.

McIntosh MHA200 2-Channel Vacuum Tube Headphone Amplifier

You can select the best impedance range for your headphones via the LOAD knob. The VOLUME knob allows the MHA200 to be connected directly to music sources that only have a fixed volume output without needing a preamplifier for volume control. Conversely, if you're using a component with variable volume output, then the VOLUME knob should be set to the center Unity Gain point and the volume controlled by the variable output component.

McIntosh MHA200 2-Channel Vacuum Tube Headphone Amplifier

Statement Piece

The MHA200 features a custom formed stainless steel chassis with a polished mirror finish that will accentuate the glow of the vacuum tubes, making it a statement piece to display in your home and to use with pride. A vintage die cast aluminum McIntosh name badge adorns the side of the MHA200. A Power Control input and output allows the MHA200 to turn on and off with other connected McIntosh components, such as preamplifiers, CD players, turntables, or media steamers. A protective vacuum tube cover is included. Contact your local dealer to learn more.

McIntosh MHA200 2-Channel Vacuum Tube Headphone Amplifier

HEADPHONE OUTPUT SPECIFICATIONS

    Headphone Power Output
    500mW
    Headphone Output Impedance
    32-100 Ohms
    100-250 Ohms
    250-600 Ohms
    600-1,000 Ohms

ELECTRONIC SPECIFICATIONS

    Power Output per Channel
    N/A
    Speaker Impedance
    N/A
    Rated Power Band
    20Hz to 20kHz
    Total Harmonic Distortion
    0.5% maximum harmonic distortion at any power level from 250 milliwatts to rated power, 20Hz to 20,000Hz
    <0.20% at 1W, 20Hz to 20,000Hz
    Intermodulation Distortion
    0.04% Typical
    0.4% Maximum
    Dynamic Headroom
    1.5dB
    Frequency Response
    +0, -0.5dB from 20Hz to 20,000Hz
    Sensitivity (Unbalanced)
    1.0 Vrms
    Sensitivity (Balanced)
    2.0 Vrms
    Maximum Input Signal (Unbalanced)
    8V
    Maximum Input Signal (Balanced)
    16V
    Signal To Noise Ratio
    94dB
    Input Impedance (Balanced / Unbalanced)
    20K/10K
    Damping Factor
    >150
    Preamplifier Output
    N/A
    Preamplifier Output Impedance
    N/A
    Voltage Gain
    12dB at 32 Ohms
    17dB at 100 Ohms
    21dB at 250 Ohms
    25dB at 600 Ohms
    Power Guard
    No

CONNECTIVITY

    Headphone Output
    One pair of 3-pin balanced XLR connectors for dedicated Left and Right balanced output;
    One 4-pin balanced XLR connector for balanced stereo output;
    One 1/4" stereo headphone jack
    Balanced Input
    1
    Unbalanced Input
    1
    Digital AES/EBU Input
    0
    Digital Coaxial Input
    0
    Digital Optical Input
    0
    Digital MCT Input
    0
    Digital USB Input
    0
    Preamplifier Output
    0

DIGITAL AUDIO SPECIFICATIONS

    Digital AES/EDU Input Sample Rate
    N/A
    Digital Coaxial Input Sample Rate
    N/A
    Digital Optical Input Sample Rate
    N/A
    Digital MCT Input Sample Rate
    N/A
    Digital USB Input Sample Rate
    N/A

CONTROL

    Tone Controls
    No
    Power Control Input
    1
    Power Control Output
    1

GENERAL SPECIFICATIONS

    Output Meters
    No
    Vacuum Tube or Solid State
    Vacuum Tube
    Power Requirement
    120V 50/60Hz, 1.5A
    Standby Power Requirement
    <0.5 Watts
    Output Type
    Unity Coupled Output Transformer

WEIGHTS & DIMENSIONS

    Unit Dimensions (W x H x D)
    6-1/8" (15.6cm) x 5-3/4" (14.6cm) x 9-1/8" (23.2cm)
    Unit Weight
    10.5 lbs (4.8 kg)
    Shipping Weight
    12 lbs (5.5 kg)
User Manual
MHA200 User Manual

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