McIntosh Power Amplifiers

Tri-Chassis, 2,000 Watt Monoblock Power Amplifier

• Balanced and Unbalanced Inputs
• 3 Full Sets of Terminals for Tri-Wiring
• Quad Balanced
• Self Monitoring ThermalTrak(TM) Output Transistors
• McIntosh Output Autoformers
  

Ordinary amplifiers simply do not have enough power to reproduce full-sized live music without running out of power on short transients. The MC2KW is no ordinary amplifier. It has what it takes (8000 watts on musical peaks) to reproduce a full orchestra's dynamic power without strain or limiting.

The unique design of the MC2KW incorporates three modules separating the power from the output. Each 1000 watt Power Module contains half of the balanced circuitry complete with its own power supply. The Output Module houses the input and output connections, meter and output autoformer and functions as the control center. The signal from the Power Modules enters a bifilar wound, mirror image output transformer where each kilowatt of power is added canceling noise and distortion.

Monoblock Power Amplifier

• 1200 Watt Mono Power Amplifier
• Double Balanced, Push/Pull Design
• Full Power into 2, 4, or 8 ohms
• 200 Amperes of Output Current
• Metal Film Resistors and Film Capacitors
• McIntosh Power Assurance System
• Damping Factor: 100, 8 ohms

For over fifty years, McIntosh Laboratory has been building the finest high end audio components - including an amplifier in each generation designed to be "the best amplifier in the world." Now we have a new contender for the world title - the MC1201, a 1,200 watt Mono Power Amplifier.

The MC1201 amplifier is fully double balanced from input to speaker output. Two matched amplifiers with complimentary balanced circuitry operate in a PUSH-PULL configuration. Their outputs are combined in a balanced "OUTPUT AUTOFORMER". The resulting double balanced configuration cancels virtually all distortion. This circuit is ONLY possible with the exclusive "McINTOSH OUTPUT AUTOFORMER".

The AUTOFORMER provides proper matching for a 2, 4, or 8 ohm speaker, provides low distortion power transfer at frequencies well beyond the limits of human hearing, delivers peak output current in excess of 200 amperes and prevents speaker damage in the event of a failed output transistor.

All critical circuits employ precision metal film resistors and film capacitors with low absorption dielectrics. Transistors are selected for constant current gain across their entire operating range. Every stage of voltage or current amplification is designed for the best linear performance. All of the above guarantee the lowest distortion.

High power amplifiers draw high current from the AC power line. Most owners desire that there be one power switch for the whole audio system. The MC1201 is equipped with a circuit that provides remote POWER CONTROL from your McIntosh preamp or control center.

Monoblock Power Amplifier

• Awarded one of Stereophile Magazine's Recommended Components for 2005 and 2006
• The MC501 delivers 500 watts
• Over 1200 watts of peak power
• S/N Ratio: 124dB below rated power.
• Quad-differential amp design
• Three sets of huge gold-plated speaker posts.
  

The MC501, 500 watt mono block amplifier has a new and bold, yet unmistakably McIntosh look. It features 3-dimensional glass and new cool-running, ultra long life, fiber optic LED lighting. The chassis gleams in polished stainless steel. Upward facing connectors at the back make attaching cables easier.

The extraordinary quad-differential amplifier design reduces noise and distortion to record low levels. Total Harmonic Distortion: 0.005% maximum from 250 milliwatts to rated power output for 2 channels. Specifications are very conservative.

2-Channel Power Amplifier

• 600 watts x 2 (2/4/8 ohms)
• Less than 0.005% Distortion
• Autoformer output interface
• Signal to Noise Ratio (Balanced Input): 134 dB
• Glass faceplate
• Remote power control
  

If you are looking for huge amounts of bulletproof power, the McIntosh MC602 will deserve a good long stare. Rated conservatively at 600 watts per channel, this stereo amplifier combines the legendary McIntosh quality with the equally renowned McIntosh good looks. Balanced inputs keep noise levels to a minimum across the rated 20 Hz to 20 kHz bandwidth, with THD a vanishingly small .005%. The outputs use McIntosh's traditional Autoformers. The chassis is stainless steel, with Power Guard and Sentry Monitor circuits to keep an eye on all that brute force.

2-Channel Power Amplifier

• Stereo: 400 Watts/Channel (8/4/2 ohms)
• Mono Parallel: 1x800 watts (4/2/1 ohms)
• Quad Differential Design
• Power Guard and Sentry Monitor
• Exclusive Output Autoformers
• Fully Balanced Input to Output
  

Continuing the long tradition of innovation and exceptional performance, the MC402 Stereo Power Amplifier is rated to deliver a hefty 400 watts per channel in stereo or 800 watts in mono. Its extraordinary quad-differential design cancels virtually all distortion and consists of four complete amplifier circuits, each a mirror image of the other, whose outputs are combined in the unique McIntosh made autoformers, delivering absolute transparency and musical accuracy into loads of 2, 4, or 8 ohms. A new three dimensional glass faceplate design adds elegance while the illuminated peak-responding meters show the true output regardless of load.

Power Guard Indicators, Remote Power Control and Fiber-Optic light Diffuser Illumination complete a very capable amplifier.

2-channel Power Amplifier

• Stereo: 250 Watts/Channel (8/4/2 ohms)
• Mono: 1 x 500 watts (16/8/4/2/1 ohms)
• Power Guard and Sentry Monitor
• Output Autoformers
• Balanced and Unbalanced Inputs
• Remote Power Control
• Polished Stainless Steel Chassis
  

With 250 watts per channel at 0.005% maximum distortion across the entire audio spectrum, the MC252 Stereo Power Amplifier delivers lots of clean power. McIntosh's exclusive output autoformers insure the amplifier will always deliver full power, without stress, to any type of loudspeaker. Whether your speakers are 2,4 or 8 ohms, McIntosh Autoformers ensure you'll always get the power you've paid for. The two channels of the MC252 can also be bridged into a single channel that delivers 500 watts into 1,2,4,8 or 16 ohms. Power Guard circuitry is included, and the illuminated peak-responding meters show the true output regardless of load.

Vacuum Tube Power Amplifier

• Stereo: 100 Watts/channel (8/4/2 ohms)
• Mono Parallel: 200 Watts/channel (4/2/1 ohms)
• Mono Bridged: 200 Watts/channel (16/8/4 ohms)
• Patented Unity Coupled Output Transformer
• Balanced and Unalanced Inputs (switchable)
• Polished Stainless-Steel Chassis
  

When McIntosh created the MC2000 tube amplifier to commemorate their 50th Anniversary, even they were surprised by the firestorm of critical acclaim and demand which it engendered. Now they have designed another amplifier for what has become their 2000 Series of Limited Edition Components.

The MC2102 Vacuum Tube Amplifier shares key characteristics with the MC2000, including the fact that they were both designed and engineered by McIntosh co-founder Sidney Corderman. Rated at 100 watts x 2 or 200 watts x 1, the MC2102 uses eight tubes in each channel. Balanced Input and inversion is handled by a pair of 12AX7's. Twin 12AT7's provide voltage amplification and driver functions, feeding two pair of either KT-88s or 6550's. Configured for stereo, the MC2102 can power 2, 4, or 8-ohm loads. In parallel mono configuration it pushes 1,2,or 4-ohm loads and as a bridged mono device it drives 4, 8, or 16-ohm loads.

If you've been fortunate enough to spend time with a classic McIntosh amp, you know that in addition to having their own distinct look - the famous Blue Eyes power meters - they also have their own distinct sound. Mac amps have their own way of doing things, and the sound they create presents a powerful argument in favor of their approach. Their legendary Unity Coupled Output Transformer is a classic example of this. This output design uses two bifilar wound primaries - one for the plates, as is normal, and a second for the cathodes. Instead of drawing all the output power from the plates, as other tube design are wont to do, the Unity Coupled design draws from both the plates and the cathodes. This greatly reduces the output distortion - always a problem in tube designs. By mixing the secondary windings in amongst the primaries, coupling is improved -flattening the output frequency response and improving the power bandwidth.

Balanced inputs provide a low-noise input path and can be selected by a rear panel switch. Gold plated 5-way binding posts are available for 2, 4, and 8-ohm speakers on each channel, plus one extra common pair. With a signal-to-noise ratio of better than 100 dB, .8v input sensitivity, and wideband damping of greater than 18, the MC2101 is both the perfect introduction to the world of glorious tube sound and the perfect step-up for someone who already knows what the fuss is all about. If you think all amplifiers sound the same, you just haven't heard this one.

"Blue Eyes" Power Meters highlight the beautiful design that uses eight tubes per Channel: 12AX7 (2), 12AT7 (2), KT-88 (4) or 6550 (4). Patented Unity Coupled Output Transformer with bifilar-wound output transformers deliver ultra-low distortion output. Ceramic tube sockets have gold-plated contacts for longevity. Gold-plated 200A multi-way binding posts make connecting your speakers a breeze. Remote power control connection to McIntosh Control Centers and Preamplifiers allows easy system turn on and turn off. Black drawn-aluminum transformer enclosures and a polished stainless-steel chassis add to the timeless good looks. Of course, the backlit glass front panel has illuminated nomenclature.

Vacuum Tube Power Amp

• Awarded one of Stereophile Magazine's Recommended Components for 2005 and 2006
• Awarded The Absolute Sound Golden Ear Award - "Best of the Best"
• Stereo: 75 Watts per channel (4/8/16 ohms)
• Mono Bridged: 150 Watts per channel (2/4/8 ohms)
• Tube Compliment: (3) 12AX7, (4)12AT7, (4) KT-88/6550
• Adjustable Sensitivity on Unbalanced input to match any preamp
• Gold plated unbalanced input jacks
• Balanced inputs with XLR jacks
  

An object of desire cherished by music lovers around the world, the MC275 is hard to beat.

Our amplifiers have a lush sound that presents a powerful and detailed soundstage. Their legendary Unity Coupled Output Transformer uses two bifilar wound primaries - one for the plates, as is normal, and a second for the cathodes. Instead of drawing all the output power from the plates, as many other designs do, the Unity Coupled design draws from both the plates and the cathodes. This greatly reduces the output distortion - always a problem in tube designs. By mixing the secondary windings in amongst the primaries, coupling is improved -flattening the output frequency response and improving the power bandwidth.

The MC275 Vacuum Tube Amplifier was designed and engineered by McIntosh co-founder Sidney Corderman and the McIntosh Engineering Team. The MC275 uses balanced or single ended inputs and a compliment of (3) 12AX7A, (4) 12AT7 and either (4) KT-88s or 6550 tubes. Configured for 75 watt per channel stereo, the MC275 can power 4, 8, or 16-ohm loads. As a bridged mono amp it delivers 150 watts into 2, 4, or 8-ohm loads. THD is below 0.5% from 20 Hz to 20KHz at all times.

7-Channel Power Amplifier

1. 7 Channel x 200 Watts into 4 or 8 ohm loudspeakers
2. Dual Zone Capability
3. Incorporates the new McIntosh Dynamic Power Manager Circuit
4. Includes the latest Motorola Power Transistor
5. Signal to Noise Ratio: 89dB
6. Rated Power Band: 20Hz to 20kHz
7. Total Harmonic Distortion 0.005% maximum for 4 or 8 ohmm loads.

The MC207 is designed for use in a 7.1 home theater or in a 5.1 home theater with the remaining 2 channels available for a second stereo zone.

The MC207 is the first amplifier to employ the newly developed DYNAMIC POWER MANAGERTM (DPMTM) circuit design. This unique McIntosh circuit allows the MC207 to deliver a full 200 watts x 7 channels into either 4 or 8-ohm loudspeakers. On the rear panel of the MC207 is an impedance selector for 4 or 8-ohms. If the 8-ohm position is chosen and the speakers are 4-ohms, the MC207 will automatically switch over to the 4-ohm position if the amplifier is driven hard. This switch adjusts both the output transistor rail voltages as well as bias level to maintain ultra low distortion. DPMTM allows the MC207 to be optimized for whatever speakers are used.

The chassis is mirror polished Stainless Steel as used on the MC402 and other McIntosh amplifiers. The power transformer and filter capacitors are housed in traditional McIntosh drawn aluminum cans with a durable powder coat finish. The 5 heat sinks are fully exposed for maximum ventilation.

The MC207 has the traditional McIntosh 9" tall glass faceplate with three wattmeters for front channel power indication. The meters and front panel are illuminated with Fiber Optic Light Diffusers and Light Emitting Diodes (LED) for a beautiful, lifetime appearance. The meter illumination may be switched off using the front panel control.

Pair the MC207 with the MX135 A/V Control Center for maximum home theater and multi-zone applications. From any angle, the MC207 is the most attractive multi-channel McIntosh amp yet that will reward with years of ownership pride.

5-Channel Power Amplifier

• 200 Watts x 5 Channels
  
• Balanced XLR Inputs
• 2-Zone Operation

(3 x 200 + 2 x 200)

With a total of 1000 watts of power, the MC205 delivers all the explosive dynamics that high-performance home theater systems require. What’s more, by incorporating McIntosh’s Dynamic Power Management (DPM) circuit topology, the MC205 delivers full power into a wide variety of loudspeaker types.

Unlike other high-current designs, The MC205 delivers the same 200 watts per channel into both 4-ohm and 8-ohm loudspeakers. The Dynamic Power Manager automatically controls and optimizes the power supply’s voltage and current balance delivering higher voltage that 8 ohm speakers require, and automatically adjusting for current-hungry 4 ohm speakers.

Versatility reigns with the MC205. Aside from a 5 channel home theater amplifier the MC205 can also be used as a two zone amplifier with three channels in one zone and the remaining two channels assigned to a second zone.

FIVE or THREE + 2-CHANNEL:
The MC205 may be used as a three channel amp to combine with other McIntosh stereo or mono block amps in a home theater while the remaining two channels are assigned to the B zone remote stereo area.

8-Channel Power Amplifier

• Multizone or Home Theater
• Configurable to 7, 6, 5 or 4 Channels
• 8 x 50 watts (4 ohms)
• Any pair can be bridged to 100 Watts (8 ohms)
• High Current Design
• Single Cable Connection to CR16

The MC58 is a high current 8-channel amplifier that can be configured as a reliable multi-zone power source for a whole house installation, as a primary home theater amp, or as a supporting home theater amp.

When used as a whole-house power source, the MC58 can produce 8 x 30 watts of ultra-clean power into 8 ohms and up to 8 x 50 watts into 4 ohms - a sign of its superb power supply. It can be configured for 4, 5, 6, 7, or 8-channel output. Any bridged pair will deliver 100 watts/8 ohms and a five-channel configuration would have 100 watts/8 ohms across the front and 50 watts/4 ohms into each of the rear channels. As you can see, this is a very flexible amp that can be configured for use in a variety of situations.

A suite of power protection technologies called the McIntosh Power Assurance System creates a stable platform for McIntosh's trademark wide power bandwidth, vanishingly low distortion and wide, palpable dynamics. With remote power control, fanless convection cooling, and gold-plated high output connectors, this is whole house or home theater power-o-the-gods. It's not how much power an amp puts out that matters - it's what that power does once it reaches the speakers that's important. Find out why McIntosh power is like no other power you've ever heard.

This 8-Channel Power Amplifier is great for multizone and home theater systems. The eight channels are configurable to 7, 6, 5 or 4. Power output is 8 x 50 watts (4 ohms), 8 x 30 watts (8 Ohms). Any pair can be bridged for 1 x 100 watts (8 ohms). Exclusive McIntosh Power Assurance System: Power Guard, Sentry Monitor, Thermal Cutout and Turn-On Delay. Fanless Convection Cooling means quiet running.