MA2375 2-Channel Vacuum Tube Integrated Amplifier
Ideal for 2-Channel Audio Systems
Our first vacuum tube integrated amplifier in over a decade, the MA2375 Vacuum Tube Integrated Amplifier is a statement of uncompromising artistry. Crafted for the music purist but refined for the modern listener, the MA2375 invites you to rediscover your music with amazing clarity and beauty. Every detail, from its polished stainless-steel chassis to the warm glow of its tubes, reflects our legacy of excellence and timeless design.
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.
Our gold-plated Solid Cinch™ speaker binding posts ensure a secure and corrosion-resistant connection for your speaker cables, while an unbalanced preamp output supports the addition of a second amplifier in advanced multi-zone audio systems.
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.
ELEVATE EVERY NOTE
The MA2375 Vacuum Tube Integrated Amplifier redefines what’s possible in high-fidelity sound, inviting you to experience music in its purest form. Contact your McIntosh dealer to discover how the MA2375 can transform your listening space into a sanctuary of sound.
Specifications
Electronic Specifications
FTC Power Output Rating 75 W
Power Output per Channel 75 W into 4, 8, or 16 ohms
Number of Channels 2
Rated Power Band 20Hz to 20kHz
Total Harmonic Distortion 0.5% maximum with both channels operating from 250 milliwatts to rated power, 20Hz to 20kHz
Dynamic Headroom 1.2dB
Frequency Response +0,-0.5dB 20Hz to 20kHz
Frequency Response, +0, -3dB 10Hz to 50kHz
Sensitivity Phono 3mV
Sensitivity High Level (Balanced / Unbalanced) 600mV/300mV
Sensitivity (Power Amp input) N/A
Signal To Noise Ratio (Moving Coil) 75dB
Signal To Noise Ratio (Moving Magnet) 75dB
Signal To Noise Ratio (High Level) 95dB
Signal To Noise Ratio (Power Amp input) N/A
Input Impedance (Balanced / Unbalanced) 44K/22K
Phono: 100 - 47kΩ; 50 - 400pF
Damping Factor >22
Maximum Output (Balanced / Unbalanced) 16V Balanced 8V Unbalanced
Connectivity
Balanced Input 2
Unbalanced Input 3
Phono Input Universal 1 (configurable as either Moving Coil or Moving Magnet)
Upgradeable Digital Audio Module No
Digital Coaxial Inputs 0
Digital Optical Inputs 0
Digital MCT Inputs 0
Digital USB Input 0
HDMI (ARC) Input 0
Balanced Variable Output 0
Unbalanced Fixed Output 0
Unbalanced Variable Output 1
Headphone Output 1/4" High Drive with Headphone Crossfeed Director (HXD®)
Subwoofer Outputs 1
AM/FM Tuner option No
Home Theater PassThru Yes
Unbalanced Analog Connector Type Premium gold-plated solid brass
Speaker Binding Post Type Patented Solid Cinch™ Speaker Binding Posts
Service Port 1
Digital Audio Specifications
Digital-to-Analog Converter (DAC) Type N/A
Digital Coaxial Input Sample Rate N/A
Digital Optical Input Sample Rate N/A
Digital MCT Input Sample Rate N/A
Digital USB Input Sample Rate N/A
Digital Network/Wi-Fi Input Sample Rate N/A
Control
Tone Controls 5-Band
Tone Bypass and Input Assign Yes
RS232 Control Inputs Yes
Power Control Outputs 1
Rear Panel Data Ports 2
Rear Panel IR Sensor Inputs Yes
Input Level Match Yes
General Specifications
Vacuum Tube or Solid State Vacuum Tube
Output Type Unity Coupled Output Transformer
Output Meters Yes
Dual Layer Chassis Yes
Chassis Finish Polished stainless steel
McIntosh Monogrammed Heatsinks™ No
Power Requirement 120V 50/60Hz, 3.6A
Standby Power Requirement <0.25 Watts
Weights & Dimensions
Unit Dimensions (W x H x D) 17-13/16" (45.2cm) x 9-15/16" (25.2cm) x 20-7/16" (51.9cm)
Unit Weight 93 lbs (42.2 kg)
Shipping Weight 103 lbs (46.7 kg)
