McIntosh MI1250 12 Channel Power Amplifier

Description 

The McIntosh MI1250 is a versatile 12-channel digital amplifier designed to deliver pristine audio to multiple rooms, making it an ideal choice for whole-house distributed audio systems. Built around advanced closed-loop digital switching amplifiers paired with robust power supplies, the MI1250 produces performance levels far superior to typical multi-zone amplifiers. It outputs 50 Watts per channel into 8 Ohms and 90 Watts per channel into 4 Ohms, ensuring powerful, clean, and consistent sound across every zone in your home.

Efficient Design with Rack-Mount Flexibility

Engineered for professional installations, the MI1250 features installer-friendly dimensions and comes ready for 2U rack mounting using the included rack ears, which can also be removed for standalone installations. As a Class D amplifier, it maintains excellent efficiency and runs cool without the need for internal cooling fans, making it a silent yet powerful addition to any equipment rack.

Simple Monitoring with Front Panel Indicators

The front panel of the MI1250 incorporates multi-color LED indicators that clearly display the status of each individual channel. These indicators allow installers and homeowners to quickly verify performance, detect issues, and monitor system health at a glance, enhancing usability and long-term reliability.

Comprehensive Rear Connectivity & Control

On the rear panel, the MI1250 offers a full suite of installation-friendly features. Each channel is equipped with unbalanced RCA inputs and 2-pole Phoenix-style speaker terminals for secure and fast connections. Installers also benefit from individual volume controls for precise balancing across zones. The amplifier includes two digital audio inputs (coaxial and optical) that can be bussed, along with channel-summing circuits that simplify mono distribution when needed. This intelligent design ensures seamless integration with distributed audio systems of any scale.

Advanced McIntosh Protection Technologies

The MI1250 incorporates signature McIntosh protection and control technologies designed to ensure long-term reliability, operational safety, and seamless system integration. Power Guard® actively monitors the output signal and makes real-time adjustments to prevent clipping, protecting connected speakers from damage during demanding listening conditions. Sentry Monitor™ adds another layer of safety by instantly detecting short-circuit conditions, disengaging the output stage before current exceeds safe limits and automatically resetting once normal operation is restored.

BUS inputs and outputs simplify signal distribution, allowing a single stereo source to be shared across multiple channels or additional amplifiers with ease. Integrated 12V trigger inputs and outputs enable synchronized power control with other McIntosh components, creating a unified system experience. To enhance efficiency, eco-friendly signal sensing automatically powers the amplifier on when an audio signal is detected and switches it off after a period of inactivity, reducing unnecessary power consumption without compromising performance.

Iconic McIntosh Aesthetics for Custom Installations

True to McIntosh design heritage, the MI1250 features a black glass front panel, illuminated McIntosh logo, and sleek silver trim, making it not only a powerhouse performer but also a visually elegant addition to any custom home installation. When combined with McIntosh processors like the MX100, or amplifiers such as the MI347 and MI254, it forms a complete, high-performance system that integrates beautifully into a professional A/V rack.

Technical Specifications