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.
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.
Specifications
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)
-
- Unit Weight
- 66 lbs (29.9 kg)
-
- Shipping Weight
- 75 lbs (34.0 kg)