MI128 Power Amplifier

The McIntosh MI128 is an eight-channel digital power amplifier designed for distributed audio and custom installations. It provides 120 watts per channel into 8 ohms or 150 watts per channel into 4 ohms from a rack-mountable 2U chassis.

Bussable unbalanced inputs can simplify signal distribution across several channels, while on/off signal sensing and Power Control support automated operation. Power Guard and Sentry Monitor supervise each channel, making the MI128 a compact way to supply multiple rooms or loudspeaker zones from one amplifier.

Three Important Features

• Eight-channel architecture: One 2U chassis powers up to eight loudspeaker channels.
• Bussable inputs: Input signals can be distributed across multiple channels without external splitters.
• Installation-oriented control: Signal sensing and Power Control support automated system operation.

Three Important Specifications

• Power output: 120 watts x 8 channels into 8 ohms; 150 watts x 8 channels into 4 ohms.
• Total harmonic distortion: 0.05%.
• Chassis: 2U rack-mountable.