McIntosh MC2KW
The MC2KW is McIntosh's ultimate statement in power amplification—a 2000-watt monoblock system that represents the pinnacle of audio engineering. With three separate chassis per channel and McIntosh's exclusive Quad Balanced design, it delivers power and precision beyond any other amplifier in the world.
Specifications
- Power Output: 2000 watts per channel (monoblock)
- Frequency Response: 20Hz to 20kHz (+0, -0.1dB)
- Total Harmonic Distortion: 0.005% max
- Signal-to-Noise Ratio: 124dB
- Input Sensitivity: 2.5V for 2000W output
- Damping Factor: >1000
- Dimensions (per chassis): 17.5" W × 9.5" H × 22" D
- Weight (per channel): 385 lbs (three chassis total)
- Production Years: 2005–Present
System Configuration
The MC2KW is a three-chassis system per channel:
- Power Supply Chassis: Contains massive toroidal transformers and filter capacitors
- Input/Driver Chassis: Houses input stage and driver amplification
- Output Chassis: Contains the final output stage with 64 output transistors
- Interconnect Cables: Custom-designed cables connect the three chassis
- Total Components: 6 chassis for a stereo pair (12 chassis total)
History
McIntosh introduced the MC2KW in 2005 for the company's 60th anniversary. It came out of six decades of amplifier design experience. The goal was simple but ambitious: the most powerful, most precise and most reliable amplifier ever made.
Development took over five years and involved McIntosh's most experienced engineers. They rethought every part of the amplifier from first principles, and that produced numerous patented technologies. The three-chassis design was chosen to eliminate any possibility of interference between stages. The Quad Balanced topology provided unprecedented noise rejection and linearity.
The MC2KW has stayed in continuous production as McIntosh's flagship amplifier since its introduction. It has been used to power systems from private listening rooms to professional mastering studios.
Quad Balanced Design
The MC2KW's most significant innovation is its Quad Balanced topology:
- Four Independent Amplifiers: Each channel uses four separate amplifier circuits
- Perfect Balance: Opposing amplifiers cancel noise and distortion
- Massive Power Supply: Separate supplies for each amplifier section
- Thermal Management: Intelligent cooling with multiple temperature sensors
- Protection Systems: Comprehensive monitoring of all operating parameters
Engineering Innovations
The MC2KW incorporates numerous technological advances:
- Monolithic Power Guard: Protects speakers from clipping without audible compression
- Sentry Monitor: Continuous monitoring of output stage temperature and current
- ThermalTrak Transistors: Self-regulating output devices for optimal bias
- Direct Coupled Design: No coupling capacitors in the signal path
- Gold-Plated Connectors: Highest quality connections throughout
Sound Character
The MC2KW delivers sound that redefines what is possible in amplification:
- Absolute Control: Unprecedented grip on even the most demanding speakers
- Infinite Headroom: Effortless reproduction of musical peaks
- Vanishingly Low Noise: 124dB signal-to-noise ratio reveals subtle details
- Perfect Neutrality: No coloration or editorializing of the music
- Microdynamic Precision: Captures the smallest variations in dynamics
- Macrodynamic Authority: Handles the largest orchestral crescendos with ease
System Requirements
The MC2KW is designed for the world's most ambitious audio systems:
- Dedicated Power: Requires 20-amp dedicated circuits (two per channel)
- Substantial Space: Six large chassis require significant room
- High-End Sources: Demands equally exceptional preamplification
- Reference Speakers: Designed to power the world's most demanding loudspeakers
- Professional Installation: Recommended for optimal performance
Collector's Notes
The MC2KW is the top of McIntosh's amplifier line and priced to match, typically exceeding $100,000 per stereo pair. Key considerations for owners and collectors:
- Complete systems include all interconnect cables and documentation
- Serial numbers should match across all chassis
- Professional installation and setup recommended
- Regular maintenance ensures optimal performance
- Original packaging essential for transport or resale
- Consider dedicated room electrical upgrades
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Documentation
- McIntosh Labs Gallery - Model database and specifications
- HiFi Engine - Original manuals and service documents
- Audio Karma McIntosh Forum - Owner discussions
- McIntosh Official Product Page - Current specifications
Legacy
The MC2KW represents the ultimate expression of McIntosh's amplifier philosophy. It demonstrates that with sufficient engineering resources and commitment to excellence, virtually any performance goal can be achieved. While few systems can fully exploit its capabilities, the MC2KW stands as a testament to what is possible in audio amplification—a reference standard that will likely remain unchallenged for decades to come. For those seeking absolute performance without compromise, the MC2KW is not just an amplifier; it is the final word in power and precision.
Related Models
- McIntosh MC1.25KW Power Amplifier (2001)
- McIntosh 240
- McIntosh MC-2125 (1976–1981)
- McIntosh MC-2205 (1975–1981)
- McIntosh MC-2300 (1970s)
- Accuphase P 370
- Accuphase p300 (1973)
- Accuphase PE-2217
- Accuphase PS-1200
- Accuphase PS-500