McIntosh MHA150 (ex-demo)


The Macintosh MHA150 Headphone Amplifier is a worthy successor to the critically-acclaimed MHA100, Ex-demonstration unit for sale

SKU: McIntosh MHA150 Category: Tags: , ,

McIntosh MHA150

2-Channel Headphone Amplifier

McIntosh MHA150

Supports DSD64, DSD128 & DSD256 files

3 headphone impedance ranges

The Macintosh MHA150 Headphone Amplifier is a worthy successor to the critically-acclaimed MHA100.

The MHA150 contains the same feature set and performance standards but adds their new 2nd generation digital-to-analogue converter (DAC) that provides support for DSD and DXD files to give you access to the latest in digital music.

Like the MHA100, the McIntosh MHA150 continues to take advantage of unique McIntosh technologies to create the best possible personal listening experience regardless of the headphones you use.

Their Autoformer™ technology found in our large mono and stereo amplifiers has been adapted to produce three headphone impedance ranges of 8-40, 40-150 and 150-600 Ohms so that every headphone will receive the legendary McIntosh sound quality and performance.

Macintosh Headphone Amp
  • For enjoying DSD and DXD files, the USB input accepts PCM signals up to 32-bit/384kHz and supports DSD64, DSD128 and DSD256 along with DXD 352.8kHz and DXD 384kHz. Our proprietary MCT input has also been added to the MHA150; when paired with theMCT80 SACD/CD Transport, it offers a secure DSD connection for playback of the high definition audio on SACDs.
  • For connecting digital devices, an optical and coaxial input are included along with the USB and MCT inputs; two analog inputs are also available.
  • Headphone Crossfeed Director (HXD®) brings added dimension to your music in a natural sounding way but can be turned off depending on your preferences.
  • The MHA150 is smaller than our other amplifiers, giving you additional flexibility to locate it almost anywhere in your space.
  • It’s the same width as theMB50 Streaming Audio Player and the two can be combined to start building a complete system.
  • The MHA150 is powerful and versatile enough to drive a pair of quality desktop or small bookshelfspeakers via its 50 Watt stereo speaker outputs.
  • Their patented Power Guard® technology is included and will prevent clipping that could damage your headphones or speakers.
  • A 5 step Bass Boost Control allows for further sound customisation.
  • It is one of many McIntosh products to receive Roon Tested designation from Roon Labs.
  • It has been profiled and tested by both Roon and McIntosh for maximum compatibility.
  • Roon will recognise it and send it audio optimised for its capabilities.
  • No fiddling with checkboxes or dropdowns, Roon Tested devices are automatically identified and configured out of the box for a superior customer experience.
  • The entire unit is housed in a beautiful polished stainless steel chassis that not only compliments the classic glass front panel, knobs and brushed aluminum end caps, but virtually any room decor


Macintosh MHA150 Specifications
  • Headphone Power Output

High Selection: 1W
Normal Selection: 250mW

  • Headphone Output Impedance

8-40 Ohms
40-150 Ohms
150-600 Ohms


  • Power Output per Channel

50 Watts

  • Speaker Impedance

8 Ohms

  • Rated Power Band

20Hz to 20kHz

  • Total Harmonic Distortion


  • Intermodulation Distortion

0.005% maximum, if the instantaneous peak power is 100 watts or less per channel with both channels operating for any combination of frequencies from 20Hz to 20kHz

  • Dynamic Headroom


  • Frequency Response

+0, -0.5dB from 20Hz to 20kHz
+0, -3dB from 10Hz to 100kHz

  • Sensitivity (Unbalanced)


  • Sensitivity (Balanced)


  • Maximum Input Signal (Unbalanced)


  • Maximum Input Signal (Balanced)


  • Signal To Noise Ratio


  • Input Impedance (Balanced / Unbalanced)


  • Damping Factor


  • Preamplifier Output

3V (8V maximum)

  • Preamplifier Output Impedance

500 Ohms

  • Voltage Gain


  • Power Guard

<2% THD with up to 16dB overdrive at 1kHz


  • Headphone Output

1/4″ High Drive with Headphone Crossfeed Director (HXD®)

  • Balanced Input


  • Unbalanced Input


  • Digital AES/EBU Input


  • Digital Coaxial Input


  • Digital Optical Input


  • Digital MCT (DIN) Input


  • Digital USB Input


  • Preamplifier Output



  • Digital AES/EDU Input Sample Rate


  • Digital Coaxial Input Sample Rate

16-bit, 24-bit – 32kHz to 192kHz

  • Digital Optical Input Sample Rate

16-bit, 24-bit – 32kHz to 192kHz

  • Digital MCT (DIN) Input Sample Rate

16-bit, 24-bit – 32kHz to 192kHz

  • Digital USB Input Sample Rate

16-bit, 24-bit, 32-bit – 32kHz to 384kHz


  • Tone Controls

5 Step Bass Boost Control: 0 to +12.5dB (in 2.5dB steps) @ 40Hz

  • Power Control Input


  • Power Control Output



  • Output Meters


  • Vacuum Tube or Solid State

Solid State

  • Power Requirement

120V 50/60Hz, 1.5A

  • Standby Power Requirement

<0.25 Watts

  • Output Type

Autoformer™ for Headphones
Direct Coupled for Speakers


  • Dimensions (W x H x D)

11-1/2″ (29.2cm) x 5-7/8″ (14.9cm) x 14-5/8″ (37.1cm)

  • Weight

26.5 lbs (12 kg)

  • Shipping Weight

32.5 lbs (14.8 kg)

McIntosh MHA150



McIntosh Heritage Founded in 1949 by Frank McIntosh and Gordon Gow McIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment experience for discriminating listeners around the world. Their iconic blue Watt output meter is globally recognised as a symbol of quality home audio. With a McIntosh home stereo system or home theater, listeners have the ability to create their own luxury audio experience – and truly live their music. McIntosh products are designed and handcrafted at their Binghamton, NY factory by their dedicated employees who share a passion for music and the McIntosh heritage. Since their inception, McIntosh has been powering some of the most important moments in music history and pop culture. From President Lyndon Johnson's inauguration speech to Woodstock to the famous Grateful Dead "Wall of Sound," McIntosh has not only witnessed history, they have shaped it.

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