McIntosh Labs MA6600

Model: MA6600 UPC: 01220948 Item: 145229

Product Information

MA6600 200-Watt Stereo Integrated Amplifier

The MA6600 integrated amplifier teams a very low distortion, full function preamplifier with a potent 200 Watt per channel autoformer-coupled amplifier. The ability to accept an optional tuner module (TM2), enables MA6600 to become the first stereo receiver offered by McIntosh in over 15 years.


MA6600 Features:

  • EXCLUSIVE MCINTOSH POWER ASSURANCE SYSTEM: A collection of technologies that enhance performance and reliability while protecting the amplifier and loudspeakers.
  • POWER GUARD: A waveform comparison circuit continuously monitors both input and output signals. Power Guard dynamically adjusts the input level to avoid clipping while preventing harsh sounding distortion.
  • ELECTRONIC SWITCHING AND BALANCED CONNECTIONS: The preamplifier uses Logic Circuits controlling Electromagnetic Switches on all inputs and operating functions for reliable, noiseless distortion free switching. There are two Balanced Inputs for connection of source components and a a Balanced Preamplifier output for driving an external Power Amplifier
  • POWER CONTROL AND REMOTE CONTROL: The power control output connection provides convenient Turn-On/Off of McIntosh Source components. The Data Ports together with the supplied Remote Control provides control of McIntosh Source components connected to the MA6600.
  • WATTMETER: Swift, accurate response reveals program peaks so staying within the power limits of your loudspeakers is easy.


MA6600 Specifications:


  • Power Output Per Channel: 200 Watts
  • Speaker Impedance: 2, 4 or 8 ohms
  • Rated Power Band: 20Hz to 20kHz
  • Total Harmonic Distortion: 0.005%
  • Dynamic Headroom: 2dB
  • Frequency Response +0, -0.5dB: 20Hz to 20kHz
  • Frequency Response +0, -3dB: 10Hz to 100kHz
  • Sensitivity Phono (Moving Magnet): 2.5mV
  • Sensitivity High Level (Balanced/Unbalanced): 0.5V/0.25V
  • Sensitivity (Power Amp): 1.4V
  • Signal to Noise Ratio (Moving Magnet): 84dB
  • Signal to Noise Ratio (High Level): 2dB
  • Signal to Noise Ratio (Power Amp): 115dB
  • Input Impedance (Balanced/Unbalanced): 20K/20K
  • Damping Factor: >40
  • Maximum Output (Balanced/Unbalanced): 8V Unbalanced


  • Headphone Output: Yes
  • High Level Inputs Unbalanced: 5 Stereo
  • High Level Inputs Balanced: 1 Stereo
  • Variable Outputs Unbalanced: 2 Stereo
  • Variable Outputs Balanced: 0
  • Digital USB Input: 0
  • Digital Coaxial Input: 0
  • Digital Optical Input: 0
  • Phono Moving Magnet: Yes
  • Phono Moving Coil: No
  • AM/FM Tuner Option: Yes
  • Home Theater Pass Through: No


  • Tone Controls: Bass and Treble
  • Tone Bypass and Input Assign: Yes
  • RS232 Control Input: No
  • Power Control Output: Yes
  • Rear Panel Data Ports: Yes
  • Rear Panel IR Sensor Input: Yes
  • Input Level Match: Yes


  • Dual Layer Chassis: No
  • Output Meters: Yes
  • Tube or Solid State: Solid State
  • Power Requirement: 120V, 50/60Hz, 4.8a
  • Standby Power Requirement: <1.0 Watts
  • Output Autoformer: Yes

Weights & Dimensions

  • Dimensions (W x H x D): 17-1/2" (44.5cm) x 7-5/8" (19.37cm) x 22" (55.88cm)
  • Weight: 75 lbs (34.1kg)

Reviews (1)


1 Reviews

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  1. 5.0 out of 5 stars

    Dreams Do Come True!

    Awesome musically great soundings heart of my stereo system. Every source sounds better through my MA6600. From old cassette tapes too reel to reel computer based music turntable cd radio. Enough inputs that I can easily use all my components. Phono input and yes even a headphone input included. Line output for recording. Level matching and defeat able tone controls for each input. Additional