McIntosh MA352 2-Channel Integrated Amplifier

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

The unit sits on a stainless steel chassis polished to a mirror finish; vintage McIntosh-styled die cast aluminum name badges are affixed to each side. Blue output meters, control knobs, an illuminated logo, and a black glass front panel with direct LED backlighting complete the unit. It can be paired with an assortment of CD players, turntables, tuners, media streamers and speakers to complete your home audio system.

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

• 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

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

• Dimensions (W x H x D)

  17-1/2″ (44.5cm) x 9-7/8″ (25.1cm) x 20-1/2″ (52.1cm)

• Weight

  66 lbs (29.9 kg)

• Shipping Weight

  75 lbs (34.0 kg)