MHA150 2-Channel Headphone Amplifier

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 our new 2nd generation digital-to-analog 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. Our 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.

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 MCT450 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 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. Our 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 customization. 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. Contact your local dealer to learn more. ​
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Headphone Output Specifications

Headphone Power Output

High Selection: 1W
Normal Selection: 250mW

Headphone Output Impedance

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

Electronic Specifications

Power Output per Channel

50 Watts

Speaker Impedance

8 Ohms

Rated Power Band

20Hz to 20kHz

Total Harmonic Distortion

0.005%

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

1.5dB

Frequency Response

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

Sensitivity (Unbalanced)

300mV

Sensitivity (Balanced)

600mV

Maximum Input Signal (Unbalanced)

8V

Maximum Input Signal (Balanced)

16V

Signal To Noise Ratio

105dB

Input Impedance (Balanced / Unbalanced)

25K/25K

Damping Factor

>150

Preamplifier Output

3V (8V maximum)

Preamplifier Output Impedance

500 Ohms

Voltage Gain

36.5dB

Power Guard

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

Connectivity

Headphone Output

1 (1/4")

High Level Inputs Unbalanced

1 Stereo

High Level Inputs Balanced

1 Stereo

Digital AES/EBU Input

0

Digital Coaxial Input

1

Digital Optical Input

1

Digital MCT (DIN) Input

1

Digital USB Input

1

Preamplifier Output

1 Stereo

Digital Audio Specifications

Digital AES/EDU Input Sample Rate

N/A

Digital Coaxial Input Sample Rate

16Bit, 24Bit - 32kHz to 192kHz

Digital Optical Input Sample Rate

16Bit, 24Bit - 32kHz to 192kHz

Digital MCT (DIN) Input Sample Rate

16Bit, 24Bit - 32kHz to 192kHz

Digital USB Input Sample Rate

16Bit, 24Bit, 32Bit - 32kHz to 384kHz

Control

Tone Controls

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

Power Control Input

Yes

Power Control Output

Yes

General Specifications

Output Meters

Yes

Vacuum Tube or Solid State

Solid State

Power Requirement

120V 50/60Hz, 1.5A

Standby Power Requirement

<0.25 Watts

Output Autoformer

Yes for Headphones

Weights & Dimensions

Dimensions (W x H x D)

11-1/2"(29.2cm) x 5-7/8" (14.9cm) x 18" (45.7cm)

Weight

26.5 lbs (12 kg)

Shipping Weight

32.5 lbs (14.8 kg)

Featured Products In This Category

MHA150

2-Channel Headphone Amplifier

  • Supports DSD64, DSD128 & DSD256 files
  • ​3 headphone impedance ranges

MHA100

2-Channel Headphone Amplifier

  • ​3 headphone impedance ranges
  • Small, compact size
Recommended Products

MHP1000

Headphones

  • Smooth, full bodied, non-fatiguing response
  • Closed headphone design

MB50

Streaming Audio Player

  • Make your audio system a wireless system
  • DTS Play-Fi® wireless streaming

MCT450

2-Channel SACD/CD Transport

  • ​Balanced, coax, optical & DIN outputs
  • Compatible with all common disc types

MP100

2-Channel Phono Preamplifier

  • Moving Coil & Moving Magnet inputs
  • Analog outputs + USB for ripping to computer