McIntosh Integrated Amplifier MA9000 Black

The MA9000 Integrated Amplifier can help you achieve audio perfection. The largest integrated from McIntosh in both size and power, it offers 300 Watts per channel and combines the brand's amplifier and preamplifier expertise into one comprehensive unit.

There are enough inputs and outputs on the MA9000 to last a lifetime. The 10 analog connections are comprised of 2 balanced and 6 unbalanced inputs plus 1 Moving Coil and 1 Moving Magnet for turntable connectivity. Both phono inputs feature adjustable loading for fine tuning of vinyl playback. All unbalanced analog connectors are made from premium gold-plated solid brass for superior signal handling and grounding.

On the digital side, 2 coax, 2 optical, 1 USB and 1 MCT input (for use with our MCT500 SACD/CD Transport) are all housed in the DA1 Digital Audio Module; the DA1 can be easily replaced by future modules to keep your MA9000 up to date as digital audio formats and technologies are developed. The DA1 utilizes a powerful 8-channel, 32-bit Digital-to-Analog Converter (DAC) used in Quad Balanced mode. 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. All inputs can be given custom names for user-friendly system control and configuration. All inputs also function independently of each other and each is always available for use regardless of how your sources are connected.

The MA9000 features the McIntosh Monogrammed Heatsinks that are made from high quality materials with excellent thermal conductivity properties. They are so efficient at dissipating heat that they warrant bearing the McIntosh “Mc” logo. They also have a higher quality finish thanks to the manufacturing process. They are connected to advanced high current output transistors that eliminate thermal equilibrium lag time (or warm-up time), meaning the first note played will sound just as good as those played later in your listening session.

More powerful control microprocessors have been used in the MA9000 to improve overall system operation. Some of the latest audio-grade circuit components have also been utilized to allow the MA9000 to deliver the best sound possible. At 300 Watts per channel, the MA9000 has enough power to properly drive virtually all loudspeakers – and the renowned McIntosh Autoformer guarantees your speakers will always receive that full 300 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, eight-band tone control that allows for advanced 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
• McIntosh Patented Solid Cinch speaker binding posts that easily but securely attach the speaker cables to prevent them from coming loose and possibly causing a short; the binding posts are also gold-plated to prevent corrosion and ensure a quality signal is sent over your speaker cables to your speakers

Preamplifier Specifications:

• Total Harmonic Distortion: 0.005% maximum 20Hz to 20,000Hz
• Intermodulation Distortion: 0.005% maximum for any combination of frequencies from 20Hz to 20,000Hz
• 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): 1.7V unbalanced (8V Maximum), 3.4V balanced (8V Maximum)
• Preamplifier Output Impedance: 220 ohms
• Sensitivity (for rated output): High Level - 300mV unbalanced, 600mV balanced; Phono MM - 3.0mV; Phono MC - 0.3mV
• Signal To Noise Ratio (A-Weighted): High Level - 98dB below rated output; Phono MM - 84dB below 5mV input; Phono MC - 82dB below 0.5mV input
• Input Impedance: High Level - 22K ohms Unbalanced, 44k ohms Balanced; Phono MM - 50 to 400pF, in 50pF steps, 47K ohms; Phono MC - 50, 100, 200, 400 or 1,000 ohms, 100pF
• Maximum Input Signal: High Level - 8V unbalanced, 16V balanced; Phono MM - 80mV; Phono MC - 8mV
• Headphone Impedance: 100 to 600 ohms
• Equalizer Controls: 25Hz, 50Hz, 100Hz, 200Hz, 400Hz, 1,000Hz, 2,500Hz and 10,000Hz
• 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 Specifications:

• Power Output: 300 watts into 2 ohm load; 300 watts into 4 ohm load; 300 watts into 8 ohm load
• 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 output does not exceed twice the rated power output for any combination of frequencies from 20Hz to 20,000Hz
• Dynamic Headroom: 1.8dB
• Wide Band Damping Factor: Greater than 40
• Power Guard: Less than 2% THD with up to 16dB overdrive at 1,000Hz
• Frequency Response: +0, -0.25dB from 20Hz to 20,000Hz; +0, -3.0dB from 10Hz to 100,000Hz
• Input Sensitivity (for rated output): 1.7 Volts
• Signal To Noise Ratio (A-Weighted): 114dB below rated output)
• Input Impedance: 22,000 ohms
• Maximum Input Signal: Power Amplifier In, 16V
• Voltage Gain: 29dB, 8 Ohms; 26dB, 4 Ohms; 23dB, 2 Ohms

Connectivity:

• Analog Inputs: : 6 Unbalanced, 2 Balanced, 1 Moving Coil (adjustable), 1 Moving Magnet (adjustable)
• 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 Control and Trigger Output: 12VDC, 25mA
• Power Requirements: 100 Volts, 50/60Hz at 8.0 amps; 110 Volts, 50/60Hz at 6.6 amps; 120 Volts, 50/60Hz at 6.6 amps; 127 Volts, 50/60Hz at 6.6 Amps; 220 Volts, 50/60Hz at 3.6 amps; 230 Volts, 50/60Hz at 3.3 amps; 240 Volts, 50/60Hz at 3.3 amps; Standby: Less than 0.25 watt
• Overall Dimensions (W x H x D): 17-1/2” (44.5cm) x 9-7/16” (24cm) x 22” (55.88cm) including knobs, connectors and cables
• Weight: 101 lbs (45.8kg) net, 134 lbs (60.8kg) in shipping carton