Mcintosh MHA150 Headphone Amp Ex-demo
Mcintosh MHA150 Headphone Amp Ex-demo

McIntosh MHA150 Headphone Amplifier

This is our ex-demonstration model in excellent condition. Originally purchased in October 2017. We have the original packaging.

3 Months

£4,650In-store purchase only.



The MHA150 Headphone Amplifier is a worthy successor to the critically-acclaimed MHA100. The MHA150 contains the same feature set and performance standards but adds the 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 MHA150 continues to take advantage of unique McIntosh technologies to create the best possible personal listening experience regardless of the headphones you use. The Autoformer™ technology found in the 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.

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 the MCT80 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 analogue 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 the MB50 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 bookshelf speakers via its 50 Watt stereo speaker outputs. The 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.

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

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

Dimensions (W x H x D)
29.2cm x 14.9cm x 37.1cm

12 kg

Shipping Weight
14.8 kg