McIntosh MA8900 2-Channel Integrated Amplifier

Model: MA8900 UPC: 842548106130 Item: 168745

Product Information

Bring Your Music to Life

The MA8900 is the first of McIntosh's next generation line of integrated amplifiers, offering 200 watts per channel and combining many new features with the legendary amplification prowess and preamplifier capabilities into one all-encompassing unit. 

The MA8900 is the first product to feature the new McIntosh Monogrammed Heatsinks. They are made from high quality materials with excellent thermal conductivity properties and are so efficient at dissipating heat that they warrant bearing the McIntosh “Mc” logo. Besides helping your MA8900 run cool, they’ll also help it look cool thanks to the new finishing process that results in a higher quality appearance. They are connected to advanced high current output transistors that eliminate thermal equilibrium lag time (or warm-up time) so that the first musical note played sounds just as good as songs played later in your listening session. 


  • Power Guard that monitors and adjusts the sound wave at the speed of light to prevent harsh sounding distortion and clipping that could damage your speakers
  • Sentry Monitor, McIntosh's fuse-less short-circuit protection circuit that disengages the output stage before current exceeds safe operating levels, and then resets automatically when operating conditions return to normal
  • Home Theater PassThru that allows for seamless integration into a home theater system
  • High Drive headphone amplifier with Headphone Crossfeed Director (HXD) which can bring an added dimension to headphone listening
  • A discrete, five-band tone control that permits manual analog adjustment of your favorite recordings
  • Power Control to send power on/off signals to connected McIntosh components for easy system power up and shutdown
  • Gold-plated speaker binding posts that prevent corrosion to ensure a quality signal is sent over your speaker cables to your speakers

To keep up with the ever-changing world of digital audio, all the digital inputs are housed in McIntosh's new DA1 Digital Audio Module. The DA1 Digital Audio Module can be replaced by future modules to easily keep your MA8900 current with all the latest digital audio formats and technologies. The DA1 comes with an upgraded 8-channel, 32-bit Digital-to-Analog Converter (DAC) used in Quad Balanced mode; it has 6 digital inputs consisting of 2 coax, 2 optical, 1 USB and 1 MCT for use with the MCT450 SACD/CD Transport. The coax and optical inputs will decode music up to 24-bit/192kHz for high resolution audio playback; the USB input accepts even higher PCM signals up to 32-bit/384kHz and supports up to DSD256 and DXD 384kHz. Analog stereo inputs include 1 balanced and 6 unbalanced plus 1 each of Moving Coil and Moving Magnet for turntable connectivity. All inputs can be given custom names for user-friendly system control and configuration. Unlike McIntosh's previous integrated amplifiers, every input now functions independently of each other and all are always available for use regardless of how you connect your sources. 

Besides new heatsinks and advanced digital audio capabilities, the MA8900 includes many other updates. McIntosh's engineers have used new, more powerful control microprocessors to improve overall system operation. They have also incorporated some of the latest audio-grade circuit components to allow the MA8900 to deliver the best sound possible. 

At 200 watts per channel, the MA8900 has enough power to properly drive virtually all loudspeakers. And the renowned McIntosh autoformer guarantees your speakers will always receive the full 200 watts regardless if they have 2, 4, or 8 ohm impedance.

The entire unit is wrapped in the timeless McIntosh aesthetic with blue watt meters, a black glass front panel, control knobs, illuminated logo, aluminum end caps, and a beautiful polished stainless steel chassis.




  • Power output per channel: 200W
  • Number of channels: 2
  • Speaker impedance: 2, 4, or 8 ohms
  • Rated power band: 20Hz to 20kHz
  • Total harmonic distortion: 0.005%
  • Dynamic headroom: 2dB
  • Frequency response +0, -0.5dB: 20Hz to 20kHz
  • Frequency response +0, -3dB: 10Hz to 100kHz
  • Sensitivity phono (moving coil): 0.25mV
  • Sensitivity phono (moving magnet): 2.5mV
  • Sensitivity high level (balanced/unbalanced): 0.5V/0.25V
  • Sensitivity (power amp): 1.4V
  • Signal-to-noise ratio (moving coil): 80dB
  • Signal-to-noise ratio (moving magnet): 82dB
  • Signal-to-noise ratio (high level): 95dB
  • Signal-to-noise ratio (power amp): 113dB
  • Input impedance (balanced/unbalanced): 20K/20K
  • Damping factor: >40
  • Maximum output (balanced/unbalanced): 8V unbalanced


  • Balanced input: 1
  • Unbalanced input: 6
  • Phono input moving coil: 1
  • Phono input moving magnet: 1
  • Upgradeable digital audio module: Yes
  • Digital coaxial input: 2
  • Digital optical input: 2
  • Digital MCT (DIN) input: 1
  • Digital USB input: 1
  • Balanced variable output: 0
  • Unbalanced fixed output: 1
  • Unbalanced variable output: 2
  • Headphone output: 1/4" high drive with Headphone Crossfeed Director
  • AM/FM tuner option
  • Home theater passthrough: Yes
  • Service port: 1

Digital Audio

  • Digital-to-analog converter (DAC) type: 8-channel, 32-bit/192kHz PCM/MSD, Quad/balanced
  • Digital coaxial input sample rate: 24-bit/44.1kHz to 192kHz
  • Digital optical input sample rate: 24-bit/44.1kHz to 192kHz
  • Digital MCT (DIN) input sample rate: 16-bit/44.1kHz (CD), DSD64 (SACD)
  • Digital USB input sample rate: 32-bit/44.1kHz to 384kHz (PCM) DSD64, DSD128, DSD256, DXD352.8kHz, DXD384kHz


  • Tone controls: 5-band
  • Tone bypass and input assign: Yes
  • RS232 control input: Yes
  • Power control output: 1 main, 2 trigger
  • Rear panel data port: 4
  • Rear panel IR sensor input: Yes
  • Input level match: Yes


  • Vacuum tube or solid state: Solid state
  • Output autoformer: Yes
  • Output meters: Yes
  • Dual layer chassis: Yes
  • Chassis finish: Polished stainless steel and black painted steel
  • McIntosh monogrammed heatsinks: Yes
  • Power requirement: 120V 50/60Hz, 4.4 amps
  • Standby power requirement: <0.25W
  • Dimensions (W x H x D): 17 1/2" x 7 5/8" x 22"
  • Weight: 75 lbs.

What's in the Box

What's in the Box:

  • MA8900 2-Channel Integrated Amplifier
  • Remote



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