McIntosh MA2375 2-Channel Vacuum Tube Integrated Amplifier
MA2375 2-Channel Vacuum Tube Integrated Amplifier
Ideal for 2-Channel Audio Systems
- Type: Vacuum Tube
- 75 Watts x 2-Channels
- Unity Coupled Circuit Output Transformers
- Power Guard Screen Grid Sensor®, Sentry Monitor™, Solid Cinch™ speaker binding posts
- 6 analog inputs
- Subwoofer output
- 5-band analog equalizer
PURE TUBE ARTISTRY
This all-analog masterpiece combines a vacuum tube preamplifier with a vacuum tube power amplifier in a single, elegantly designed unit. In the power amplifier section, four KT88 output tubes and four 12AT7 driver tubes deliver 75 watts per channel of effortless, low-distortion power. You will experience a rich, full-bodied sound through virtually any speakers thanks to our Unity Coupled Circuit Output Transformers. The vacuum tube preamplifier portion is powered by two 12AX7A and two 12AT7 preamp tubes.
ICONIC STYLING BLENDED WITH MODERN PERFORMANCE
The MA2375 effortlessly blends timeless McIntosh design with cutting-edge performance. Dual McIntosh blue watt meters, a polished stainless-steel chassis, and the signature glow of vacuum tubes create an aesthetic as captivating as the sound. A 5-band analog equalizer offers personalized tonal shaping, while the High Drive headphone amplifier with Headphone Crossfeed Director (HXD®) adds dimensionality to private listening.
PRECISION MEETS PROTECTION
To protect the KT88 output vacuum tubes, our Power Guard Screen Grid Sensor® (SGS) technology continuously monitors the current and adjusts the input signal in real-time to maintain optimal performance and tube integrity. If the current becomes too high, Power Guard SGS® will dynamically attenuate the input signal to keep the vacuum tubes operating at safe levels. Combined with Sentry Monitor™ fuse-less short-circuit protection, the MA2375 is engineered for enduring reliability without compromise.
CONNECTION FLEXIBILITY
The MA2375 offers an array of analog inputs, including two balanced and three unbalanced connections, to connect music streamers with analog outputs, CD players, tuners, and D/A converters. Connecting a turntable is an easy task via the configurable phono input that can accommodate both Moving Coil and Moving Magnet cartridges. The phono stage includes adjustable Gain, Capacitance, Resistance Loading, and RIAA equalization for optimal vinyl playback. A subwoofer output enables the addition of a powered subwoofer to extend low-frequency performance.
EASY CONTROL AND INTEGRATION
Convenience features include Power Control, enabling synchronized power on/off for connected McIntosh components; Home Theater PassThru for seamless integration into a home theater system; and Data Ports to send remote control commands to connected source components. An RS232 port enables advanced control options with third-party systems, or the unit can be operated via the included remote control for ultimate ease of use.
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- 8-band analog equalizer to fine-tune your music with precision, creating a personalized audio experience (the equalizer can be bypassed if desired).
- High Drive Headphone Amplifier with Headphone Crossfeed Director (HXD®) technology brings an added dimension to headphone listening.
- Home Theater PassThru for seamless integration into your home theater system.
- Has received Roon Tested designation from Roon Labs.
- Power Control lets you easily turn other connected McIntosh components on and off.
- Data Ports can send remote control commands to connected source components.
- Electromagnetic Input Switching for reliable, noiseless, and distortion-free switching.
- Level Trim Adjustment for matching analog input levels to prevent abrupt changes in volume levels.
- Precision balanced, digitally controlled attenuator system for accurate volume control with 0.1dB accuracy.
- Fully regulated power supplies and a special R-core power transformer for stable, noise-free operation.
- Eco-friendly Power Management System that will turn the unit off after 30 minutes of inactivity (can be disabled).
Electronic Specifications
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- FTC Power Output Rating
- 75 W
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- Power Output per Channel
- 75 W into 4, 8, or 16 ohms
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- Number of Channels
- 2
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- Rated Power Band
- 20Hz to 20kHz
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- Total Harmonic Distortion
- 0.5% maximum with both channels operating from 250 milliwatts to rated power, 20Hz to 20kHz
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- Dynamic Headroom
- 1.2dB
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- Frequency Response +0,-0.5dB
- 20Hz to 20kHz
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- Frequency Response, +0, -3dB
- 10Hz to 50kHz
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- Sensitivity Phono
- 3mV
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- Sensitivity High Level (Balanced / Unbalanced)
- 600mV/300mV
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- Sensitivity (Power Amp input)
- N/A
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- Signal To Noise Ratio (Moving Coil)
- 75dB
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- Signal To Noise Ratio (Moving Magnet)
- 75dB
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- Signal To Noise Ratio (High Level)
- 95dB
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- Signal To Noise Ratio (Power Amp input)
- N/A
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- Input Impedance (Balanced / Unbalanced)
- 44K/22K
Phono: 100 – 47kΩ; 50 – 400pF
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- Damping Factor
- >22
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- Maximum Output (Balanced / Unbalanced)
- 16V Balanced
8V Unbalanced
Connectivity
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- Balanced Input
- 2
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- Unbalanced Input
- 3
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- Phono Input Universal
- 1 (configurable as either Moving Coil or Moving Magnet)
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- Upgradeable Digital Audio Module
- No
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- Digital Coaxial Input
- 0
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- Digital Optical Input
- 0
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- Digital MCT Input
- 0
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- Digital USB Input
- 0
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- HDMI (ARC) Input
- 0
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- Balanced Variable Output
- 0
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- Unbalanced Fixed Output
- 0
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- Unbalanced Variable Output
- 1
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- Headphone Output
- 1/4″ High Drive with Headphone Crossfeed Director (HXD®)
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- Subwoofer Output
- 1
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- AM/FM Tuner option
- No
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- Home Theater PassThru
- Yes
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- Unbalanced Analog Connector Type
- Premium gold-plated solid brass
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- Speaker Binding Post Type
- Patented Solid Cinch™ Speaker Binding Posts
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- Service Port
- 1