MC611

1-Channel Solid State Amplifier

600 Watt Quad Balanced Monoblock
55% increase in Dynamic Headroom compared to previous model

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3 Year Limited Warranty

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MC611

1-Channel Solid State Amplifier

3 Year Limited Warranty

Print this page

COMPARE

Ask an Expert

Add to WishlistRemove From Wishlist

FIND A DEALER

The monoblock MC611 Quad Balanced Power Amplifier produces 600 Watts of power – enough to satisfy nearly any loudspeaker. A pair of MC611s can easily drive an impressive home stereo system, or add more of them to power a home theater. Thanks to our unique output Autoformer™ technology, your speakers will receive the full 600 Watts regardless if they have 2, 4 or 8 Ohm impedance, allowing you the ability to use the MC611 to its full potential.

The MC611 has received numerous updates and improvements compared to our previous 600 Watt monoblock model. Chief among them is that filter capacity has been doubled which has resulted in a dramatic 55% increase in dynamic headroom from 1.8dB to 2.8dB. This twofold increase in filter capacity also helps improve the performance of low end bass frequencies.

"The MC611 is one of the most beautiful sounding amplifiers I’ve ever heard, and at the same time is one of the most realistic sounding amplifiers I’ve ever heard. And this continues to blow me away every time I turn the MC611s’ power on." - Enjoy The Music

The front panel features new direct LED backlighting for improved appearance and color accuracy. On top, the audio Autoformer and power transformer remain seated just behind the front panel, but are now contained in new glass topped enclosures. Behind them are 2 of our Monogrammed Heatsinks™ which connect to advanced high current output transistors that help eliminate thermal equilibrium lag time. A screening of the amplifier’s block diagram has been added to the panel located between the heatsinks.

"The MC611s offer massive power with minimal distortion at all frequencies, into any load. In doing so they are virtually unique… Easy going silky smooth sound, richly detailed and dynamically awesome." Awarded 5 out of 5 Globes. - Hi-Fi World

On the back, there continues to be 3 sets of our Solid Cinch™ speaker binding posts (1 set for each speaker impedance), but more space has been added between each set to allow for easier speaker cable management. Our eco-friendly power management system, which will turn the amp off after a set amount of time when no input signal has been detected, has also been added. Other enhancements include heavier gauge internal wiring and upgraded circuit components.

In addition to all these improvements, the MC611 is full of other exclusive McIntosh technologies:

Power Guard^® that monitors and adjusts the input signal at the speed of light and makes real time adjustments to prevent harsh sounding and potentially speaker damaging clipping
Sentry Monitor™ - our fuse-less short-circuit protection circuit that disengages the output stage before current exceeds safe operating levels and then resets automatically when operating conditions return to normal
Quad Balanced design that cancels virtually all noise and distortion that may have crept into the audio signal
Power Control to send power on/off signals to other connected McIntosh components for easy system power up and shutdown

Both a balanced and unbalanced output are included to make bi-amping or tri-amping your speakers easier; they can also be used to send the audio signal to a secondary system if your preamplifier does not have enough outputs, or to connect a powered subwoofer. The MC611 sits on a beautiful polished stainless steel chassis and features the timeless McIntosh aesthetic of a black glass front panel, illuminated logo, control knobs, aluminum handles and of course a large 8” (20.3 cm) fast responding blue Watt meter. Contact your local dealer to learn more.

Specifications
Electronic Specifications
- Power Output per Channel
  
  600 Watts @ 2, 4 or 8 Ohms
- Number of Channels
  
  1
- Total Harmonic Distortion
  
  0.005%
- S/N below rated output
  
  Balanced: 124dB
  Unbalanced: 120dB
- Dynamic Headroom
  
  2.8dB
- Damping Factor
  
  >40 Wideband
- Rated Power Band
  
  20Hz to 20kHz
- Frequency Response
  
  +0, -0.25dB from 20Hz to 20,000Hz
  +0, -3.0dB from 10Hz to 100,000Hz
Control
- Remote Power Control
  
  Yes
- Multi-Channel DB25 Cable
  
  N/A
General Specifications
- Circuit Configuration
  
  Quad Balanced
- Circuit Design
  
  Solid State
- Mono Bridge
  
  N/A
- Mono Parallel
  
  N/A
- Autoformer
  
  Yes
- Meters
  
  Yes
- Meter Light Switch
  
  Yes
- Balanced Input
  
  1
- Front Panel
  
  Glass with handles
- Illumination
  
  Direct LED
- Chassis Style
  
  Polished stainless steel & black painted steel
Connectivity
- Speaker Binding Post Type
  
  Patented Solid Cinch™ Speaker Binding Posts
Weights & Dimensions
- Dimensions (W x H x D)
  
  17-1/2" (44.45cm) x 9-7/16" (23.97cm) (including
  feet) x 22" (55.88cm) (including front panel, handles and cables)
- Weight
  
  97.5 lbs (44.32 kg)
- Shipping Weight
  
  130.5 lbs (59.32 kg)