£6,495

MHA150

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-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. 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 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. 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 aluminium end caps, but virtually any room decor.

Specifications

HEADPHONE OUTPUT SPECIFICATIONS
Headphone Power OutputHigh Selection: 1W Normal Selection: 250mW
Headphone Output Impedance8-40 Ohms 40-150 Ohms 150-600 Ohms
ELECTRONIC SPECIFICATIONS
Power Output per Channel50 Watts
Speaker Impedance8 Ohms
Rated Power Band20Hz to 20kHz
Total Harmonic Distortion0.01%
Intermodulation Distortion0.005% 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 Headroom1.5dB
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 Ratio105dB
Input Impedance (Balanced / Unbalanced)25K/25K
Damping Factor>150
Preamplifier Output3V (8V maximum)
Preamplifier Output Impedance500 Ohms
Voltage Gain36.5dB
Power Guard<2% THD with up to 16dB overdrive at 1kHz
CONNECTIVITY
Headphone Output1/4" High Drive with Headphone Crossfeed Director (HXD®)
Balanced Input1
Unbalanced Input1
Digital AES/EBU Input0
Digital Coaxial Input1
Digital Optical Input1
Digital MCT (DIN) Input1
Digital USB Input1
Preamplifier Output1
DIGITAL AUDIO SPECIFICATIONS
Digital AES/EDU Input Sample RateN/A
Digital Coaxial Input Sample Rate16-bit, 24-bit - 32kHz to 192kHz
Digital Optical Input Sample Rate16-bit, 24-bit - 32kHz to 192kHz
Digital MCT (DIN) Input Sample Rate16-bit, 24-bit - 32kHz to 192kHz
Digital USB Input Sample Rate16-bit, 24-bit, 32-bit - 32kHz to 384kHz
CONTROL
Tone Controls5 Step Bass Boost Control: 0 to +12.5dB (in 2.5dB steps) @ 40Hz
Power Control Input1
Power Control Output1
GENERAL SPECIFICATIONS
Output MetersYes
Vacuum Tube or Solid StateSolid State
Power Requirement120V 50/60Hz, 1.5A
Standby Power Requirement<0.25 Watts
Output AutoformerYes 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)
Weight26.5 lbs (12 kg)
Shipping Weight32.5 lbs (14.8 kg)