McIntosh MA352 2-Channel Hybrid Integrated Amplifier

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.

The MA352 includes our Hybrid Drive^™ technology that uses the best of vacuum tubes and solid state to produce the best sound performance. 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.

• 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 component

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 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 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)