Connector Information, Introduction

Connector Information

XLR Connectors

Below is the Pin configuration for the XLR Balanced Input Connectors on the MC252. Refer to the diagram for con- nection:

PIN 1: Shield/Ground	Pin 2	Pin 1
PIN 2: + Input


PIN 3: - Input		Pin 3
PIN 3: - Input

Power Control and Trigger Connectors

The MC252’s Power Control Outputs provide a 5 volt sig- nal. Use a 1/8 inch stereo mini

phone plug to connect to the Positive Power Control Input on other

•Balanced and Unbalanced Inputs

Balanced connections guard against induced noise and al- low long cable runs without compromising sound quality.

•Patented Sentry Monitor with Thermal Protection McIntosh Sentry Monitor power output stage protection circuits ensure the MC252 will have a long and trouble free operating life. Built-in Thermal Protection Circuits guard against overheating.

•Power Control

The McIntosh Power Control Circuit allows for remote

McIntosh Components.

Introduction

N/C

Ground

turn-on of the MC252 Power Amplifier from a McIntosh Audio/Video Control Center or Preamplifier. If any addi- tional McIntosh Power Amplifiers are part of the system, a delayed Power Control Output Trigger is available. This delayed Trigger reduces the strain on the house’s electrical

Now you can take advantage of traditional McIntosh stan- dards of excellence in the MC252 Power Amplifier. The 250 watt high current outputs will drive any high quality Loudspeaker System to its ultimate performance. The MC252 reproduction is sonically transparent and abso- lutely accurate. The McIntosh Sound is “The Sound of the Music Itself.”

Performance Features

•Power Output

The MC252 consists of two separate power amplifier chan- nels, each capable of 250 watts into 2, 4 or 8 ohm speakers with less than 0.005% distortion. The two channels can be combined into a single channel with 500 watts into 1, 2, 4, 8 or 16 ohm speakers with less than 0.005% distortion.

•Patented Autoformers

The McIntosh designed and manufactured Output Autoformers provide an ideal match between the amplifier output stage and speaker loads of 2, 4 and 8 ohms. The Autoformers also provide perfect DC protection for your valuable Loudspeakers.

•Patented Power Guard

The patented McIntosh Power Guard Circuit prevents the amplifier from being over driven into clipping, with its harsh distorted sound that can also damage your valuable Loudspeakers.

wiring and protection devices.

•Illuminated Power Meters

The Illuminated Power Output Watt Meters on the MC252 are peak responding, and indicate the power output of the amplifier. The Peak Watt Hold Mode allows the meter to temporarily stay at the highest power output and then slowly decay. The Front Panel Meter Illumination may be switched Off at any time.

•Fiber Optic Solid State Front Panel Illumination The Illumination of the Front Panel is accomplished by the combination of custom designed Fiber Optic Light Diffus- ers and Light Emitting Diodes (LEDs). This provides even Front Panel Illumination, together with the extra long life LEDs.

•Glass Front Panel and Super Mirror Chassis Finish The famous McIntosh Illuminated Glass Front Panel with a three dimensional look and the Stainless Steel Chassis with Super Mirror Finish ensures the pristine beauty of the MC252 will be retained for many years.

MC252 specifications

The McIntosh MC252 is a legendary power amplifier known for its innovative approach to high-fidelity audio reproduction. As a part of McIntosh's esteemed lineup, this amplifier embodies the company's commitment to exceptional sound quality and timeless design.

One of the standout features of the MC252 is its dual mono design. This architecture not only enhances stereo imaging but also reduces crosstalk, providing a cleaner and more defined soundstage. Each channel operates independently, ensuring that each speaker receives precise and stable power, ideal for discerning audiophiles who demand the highest quality in their audio systems.

The MC252 is rated to deliver 250 watts per channel into 8 ohms, with a powerful peak at 300 watts into 4 ohms. This robust output makes it suitable for driving a wide range of speakers, from efficient bookshelf models to large floor-standing designs. The amplifier is designed to handle dynamic music and movie soundtracks with ease, delivering an engaging listening experience without distortion.

McIntosh's patented Power Guard technology is another hallmark feature of the MC252, designed to prevent clipping and distortion. This intelligent system monitors the output signal and automatically adjusts the power levels, ensuring the integrity of the audio signal is maintained even at high volumes. This feature guarantees that listeners can enjoy their music without fear of damaging their speakers.

The amplifier also incorporates a unique input and output circuitry that adheres to McIntosh’s time-honored values of craftsmanship and quality. The iconic blue watt meters not only serve a practical purpose, providing real-time feedback on power output but also add to the visual appeal of the unit, making it a centerpiece in any audio setup.

In terms of build quality, the MC252 features durable, high-quality aluminum and glass components that define McIntosh’s aesthetic. This attention to detail ensures longevity and a classic look that never goes out of style.

Overall, the McIntosh MC252 stands as a testament to the evolution of audio technology, offering robust performance, cutting-edge features, and a design ethos that honors tradition while embracing modernity. For audiophiles seeking a high-performance amplifier that delivers both power and finesse, the MC252 remains a compelling choice. Whether for home theater or music listening, its capabilities ensure an exceptional audio experience, making it a prized possession for any serious audio enthusiast.