McIntosh Integrated Amplifier MA8900 Black

Bring all your music to life with the MA8900 Integrated Amplifier. The first of the McIntosh next generation line of integrated amplifiers, it offers 200 Watts per channel and combines many features with the McIntosh legendary amplification prowess and preamplifier capabilities into one all-encompassing unit.

The MA8900 is the first product to feature 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 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 the 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 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 McIntosh 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 heatsinks and advanced digital audio capabilities, the MA8900 includes many other updates. McIntosh engineers have used 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. 

Features:

• 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 the 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

Amplifier Specifications:

• Power Output: 200 watts is the minimum sine wave continuous average power output per channel, both channels operating
• Output Load Impedance: 2, 4 or 8 ohms
• Rated Power Band: 20Hz to 20,000Hz
• Total Harmonic Distortion: 0.005% maximum with both channels operating from 250 milliwatts to rated power, 20Hz to 20,000Hz
• Intermodulation Distortion: 0.005% maximum, if the instantaneous peak power is 400 watts or less per channel with both channels operating for any combination of frequencies from 20Hz to 20,000Hz
• Dynamic Headroom: 2.0dB
• Wide Band Damping Factor: Greater than 40
• Power Guard: Less than 2% THD with up to 16dB overdrive at 1,000Hz
• Frequency Response: +0, -0.5dB from 20Hz to 20,000Hz, +0, -3dB from 10Hz to 100,000Hz
• Preamplifier Output 1 and 2 (for rated input): 1.4V unbalanced (8V Maximun)
• Sensitivity (for rated output): High Level - 250mV unbalanced, 500mV balanced; Phono MM - 2.5mV; Phono MC - 0.25mV; Power Amp In - 1.4V
• Signal To Noise Ratio (A-Weighted): High Level - 95dB below rated output; Phono MM - 82dB below 5mV input; Phono MC - 80dB below 0.5mV; input Power Amplifier, 113dB below rated output
• Input Impedance: High Level - 20K ohms; Phono MM - 47K ohms, 50pF; Phono MC - 50, 100, 200, 400 or 1,000 ohms, 100pF
• Preamplifier Output Impedance: 220 ohms
• Maximum Input Signal: High Level - 8V unbalanced, 16V balanced; Phono MM - 80mV; Phono MC - 8mV; Power Amplifier In - 16V
• Preamplifier Output Impedance: 220 ohms
• Headphone Impedance: 100 to 600 ohms
• Voltage Gain: High Level to Rec Output: 0dB; High Level to Output 1 and 2: 15dB; Phono MM to Rec Output: 40dB; Phono MC to Rec Output: 60dB; Phono MM to Output 1 and 2: 55dB; Phono MC to Output 1 and 2: 75dB; Power Amplifier: 29dB
• Power Control and Trigger Output: 12VDC, 25mA

Connectivity:

• Analog Inputs: 6 Unbalanced, 1 Balanced, 1 Moving Coil (adjustable), 1 Moving Magnet (fixed)
• Digital Inputs: 2 Coax, 2 Optical, 1 USB, 1 MCT (used with McIntosh MCT series SACD/CD Transports). All are housed in DA1 Digital Audio Module
• Home Theater PassThru: Allows for seamless interfacing with a Home Theater system

Digital Audio Specifications:

• Digital Input Signal Format: Coaxial and Optical Inputs - SPDIF (PCM); MCT and USB Inputs - PCM, DSD
• Digital Input Sample Rate (Coaxial and Optical): 44.1kHz to 192kHz, 24-Bit
• Digital Input Sample Rate (MCT): 44.1kHz, 16-Bit (CD), DSD64 (SACD)
• Digital Input Sample Rate (USB): 44.1kHz to 384kHz, 32-Bit (PCM); DSD64, DSD128, DSD256, DXD352.8kHz, DXD384kHz

General Specifications:

• Power Requirements: 100 Volts, 50/60Hz at 5.2 amps; 110 Volts, 50/60Hz at 4.4 amps; 120 Volts, 50/60Hz at 4.4 amps; 220 Volts, 50/60Hz at 2.45 amps; 230 Volts, 50/60Hz at 2.35 amps; 240 Volts, 50/60Hz at 2.25 amps; Standby: Less than 0.25 watt
• Overall Dimensions (W x H x D): 17-1/2” (44.5cm) x 7-5/8” (19.37cm) x 22” (55.88cm) including knobs, connectors and cables
• Weight: 75 lbs (34.1kg) net, 93 lbs (42.3kg) in shipping carton