McIntosh-MA352 2-Channel Hybrid Integrated Amplifier

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MA352

2-Channel Hybrid Integrated Amplifier

  • Hybrid design: vacuum tube preamp and solid state power amp
  • 200 Watts into 8 Ohms
  • 320 Watts into 4 Ohms
  • 5-band tone control

The MA352 Integrated Amplifier is a hybrid design that combines the finest of vacuum tube and solid state audio design principles. The result is an eye-catching amplifier that enjoys the best of these two opposing audio philosophies all while reproducing music at the highest quality level.

An all analog design, the MA352 has a vacuum tube preamplifier section that is powered by a pair of 12AX7A and a pair of 12AT7 vacuum tubes; its output stage is a direct coupled solid state amplifier that outputs 200 Watts per channel into 8 Ohm speakers or 320 Watts per channel into 4 Ohm speakers – enough power to properly drive virtually any set of loudspeakers. Dual scale blue Watt meters give an accurate readout of power output for both speaker impedances.

The MA352 has 2 balanced and 3 unbalanced inputs plus 1 Moving Magnet phono input with adjustable loading for connecting a turntable. It has gold-plated speaker binding posts to help prevent corrosion and ensure a quality signal is sent over your speaker cables to your speakers. A stereo preamplifier output is available for connecting a higher-powered amplifier; it can also be used to connect 1 or 2 powered subwoofers for added low frequency performance.

The MA352 is packed with numerous McIntosh technologies including:

  • Our patented Power Guard® technology that monitors the output signal for over driving and makes real time micro adjustments to the input signal to prevent harsh sounding clipping that could potentially damage your speakers
  • Our fuse-less short-circuit protection circuit Sentry Monitor™ that will disengage the output stage before current exceeds safe operating levels and then resets automatically when operating conditions return to normal
  • McIntosh Monogrammed Heatsinks™ which are connected to advanced high current output transistors that minimize thermal equilibrium lag (or warm-up) time
  • High Drive headphone amplifier with Headphone Crossfeed Director (HXD®)
  • A 5-band analog tone control allows for manual adjustment of your favorite recordings (each band adjustable by ± 12dB)
  • Home Theater Pass Through lets it be seamlessly integrated into a home theater system
  • Power Control to send power on/off signals to connected McIntosh components for easy system power up and shutdown
  • Data Ports to send remote control commands to connected source components

ELECTRONIC SPECIFICATIONS

  • Power Output per Channel
    200 Watts into 8 Ohms
    320 Watts into 4 Ohms
  • Number of Channels
    2
  • Speaker Impedance
    4 or 8 Ohms
  • Rated Power Band
    20Hz to 20kHz
  • Total Harmonic Distortion
    0.03%
  • Dynamic Headroom
    1.5dB
  • Frequency Response +0,-0.5dB
    20Hz to 20kHz
  • Frequency Response, +0, -3dB
    10Hz to 100kHz
  • Sensitivity Phono (Moving Coil)
    N/A
  • Sensitivity Phono (Moving Magnet)
    2.5mV
  • Sensitivity High Level (Balanced / Unbalanced)
    0.5V/0.25V
  • Sensitivity (Power Amp input)
    N/A
  • Signal To Noise Ratio (Moving Coil)
    N/A
  • Signal To Noise Ratio (Moving Magnet)
    82dB
  • Signal To Noise Ratio (High Level)
    93dB
  • Signal To Noise Ratio (Power Amp input)
    N/A
  • Input Impedance (Balanced / Unbalanced)
    20K/20K
  • Damping Factor
    8 Ohms: >200
    4 Ohms: >100
  • Maximum Output (Balanced / Unbalanced)
    8V Unbalanced

CONNECTIVITY

  • Balanced Input
    2
  • Unbalanced Input
    3
  • Phono Input Moving Coil
    0
  • Phono Input Moving Magnet
    1 (adjustable loading)
  • Upgradeable Digital Audio Module
    No
  • Digital Coaxial Input
    0
  • Digital Optical Input
    0
  • Digital MCT (DIN) Input
    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 Output
    2
  • 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
    N/A
  • Digital Coaxial Input Sample Rate
    N/A
  • Digital Optical Input Sample Rate
    N/A
  • Digital MCT (DIN) Input Sample Rate
    N/A
  • Digital USB Input Sample Rate
    N/A

CONTROL

  • Tone Controls
    5-Band
  • Tone Bypass and Input Assign
    Yes
  • RS232 Control Input
    Yes
  • Power Control Output
    1
  • Rear Panel Data Port
    2
  • Rear Panel IR Sensor Input
    Yes
  • Input Level Match
    Yes

GENERAL SPECIFICATIONS

  • Vacuum Tube or Solid State
    Preamplifier: Vacuum Tube
    Power Amplifier: Solid State
  • Output Type
    Direct Coupled
  • Output Meters
    Yes
  • Dual Layer Chassis
    Yes
  • Chassis Finish
    Polished stainless steel
  • McIntosh Monogrammed Heatsinks™
    Yes
  • Power Requirement
    120V 50/60Hz, 6.0A
  • Standby Power Requirement
    <0.5 Watts

WEIGHTS & DIMENSIONS

  • Unit Dimensions (W x H x D)
    17-1/2″ (44.5cm) x 9-7/8″ (25.1cm) x 17-7/16″ (44.3cm)
  • Unit Weight
    66 lbs (29.9 kg)
  • Shipping Weight
    75 lbs (34.0 kg)

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