McINTOSH - MHA200 headphone amp

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 our Unity Coupled Circuit output transformers to deliver pristine audio to your ears. Our Unity Coupled Circuit is the same technology McIntosh was founded on in 1949 and is still used in our 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.

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.

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.

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.

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.

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

• 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

• Voltage Gain

  12dB at 32 Ohms
  17dB at 100 Ohms
  21dB at 250 Ohms
  25dB at 600 Ohms

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

CONTROL

• Power Control Input : 1

• Power Control Output : 1

GENERAL SPECIFICATIONS

• 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)