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

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.

Specs

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
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

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)

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