Mcintosh MA8900 Integrated Amplifier

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Bring all your music to life with the MA8900 Integrated Amplifier. It offers 200 Watts per channel and combines many new features with our legendary amplification prowess and preamplifier capabilities into one all-encompassing unit.

The MA8900 is the first product to feature our 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 our 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.

To keep up with the ever-changing world of digital audio, all the digital inputs are housed in our 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. (NOW AVAILABLE: Optional dealer installed upgrade to the DA2 Digital Audio Module.) 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 our MCT500 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 our 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.

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. Other McIntosh features included in the MA8900 are:

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™ is our 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
The MA8900 is one of many McIntosh products to receive Roon Tested designation from Roon Labs. As a Roon Tested partner, McIntosh has provided equipment to Roon for testing with a variety of different operating systems and computers, and shared information about its design and capabilities.

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.

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  • Specifications

    • Power Output per Channel
      200 Watts
    • Number of Channels
      2
    • Speaker Impedance
      2, 4, or 8 Ohms
    • Rated Power Band
      20Hz to 20kHz
    • Total Harmonic Distortion
      0.005%
    • Dynamic Headroom
      2.0dB
    • 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 input)
      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 input)
      113dB
    • Input Impedance (Balanced / Unbalanced)
      20K/20K
    • Damping Factor
      >40
    • Maximum Output (Balanced / Unbalanced)
      8V Unbalanced

    CONNECTIVITY

    • Balanced Input
      1
    • Unbalanced Input
      6
    • Phono Input Moving Coil
      1 (adjustable loading)
    • Phono Input Moving Magnet
      1 (fixed loading)
    • Upgradeable Digital Audio Module
      Yes: DA1
    • Digital Coaxial Input
      2
    • Digital Optical Input
      2
    • Digital MCT (DIN) Input
      1
    • Digital USB Input
      1
    • HDMI (ARC) Input
      0
    • Balanced Variable Output
      0
    • Unbalanced Fixed Output
      1
    • Unbalanced Variable Output
      2
    • Headphone Output
      1/4″ High Drive with Headphone Crossfeed Director (HXD®)
    • Subwoofer Output
      0
    • AM/FM Tuner option
      No
    • Home Theater PassThru
      Yes
    • Unbalanced Analog Connector Type
      Standard
    • Speaker Binding Post Type
      Standard
    • Service Port
      1

    DIGITAL AUDIO SPECIFICATIONS

    • Digital-to-Analog Converter (DAC) Type
      8-channel, 32-bit/384kHz PCM/DSD, Quad Balanced
    • Digital Coaxial Input Sample Rate
      24-bit/44.1kHz to192kHz
    • Digital Optical Input Sample Rate
      24-bit/44.1kHz to192kHz
    • 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

    CONTROL

    • 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

    GENERAL SPECIFICATIONS

    • Vacuum Tube or Solid State
      Solid State
    • Output Type
      Autoformer™
    • Output Meters
      Yes
    • Dual Layer Chassis
      Yes
    • Chassis Finish
      Polished stainless steel & black painted steel
    • McIntosh Monogrammed Heatsinks™
      Yes
    • Power Requirement
      120V 50/60Hz, 4.4 amps
    • Standby Power Requirement
      <0.25 Watts

    WEIGHTS & DIMENSIONS

    • Unit Dimensions (W x H x D)
      17-1/2″ (44.5cm) x 7-5/8″ (19.4cm) x 18-3/4″ (47.6cm)
    • Unit Weight
      75 lbs (34.1 kg)
    • Shipping Weight
      93 lbs (42.3 kg)