Skip to content
0
Menu
MI128
MI128
MI128
MI128
MI128
McIntosh

MI128

8-Channel Power Amplifier

The versatile MI128 8-Channel Digital Amplifier can be used in many applications ranging from distributed audio to home theater to stereo listening.

Read more
Channels
8
FTC Power Output Rating
120 W
Number of Channels
8
Total Harmonic Distortion
0.05%
S/N below rated output
95dB
Dynamic Headroom
8 ohms: 2.1dB 4 ohms: 3.3dB
Price on requestCheck availability

Overview

The versatile MI128 8-Channel Digital Amplifier can be used in many applications ranging from distributed audio to home theater to stereo listening. It delivers 120 Watts into 8 Ohm speakers or 150 Watts into 4 Ohm speakers via highly sophisticated closed loop digital switching amplifiers that are paired with extremely robust power supplies to produce performance levels that are rarely achieved in distributed audio.

It has installer-friendly physical dimensions and is 2U rack mountable via the included mounting ears (the mounting ears are removable for non-rack installations). As a highly efficient Class D amplifier, it does not require noisy cooling fans to maintain nominal operating temperature.

On the front panel, multi-color LED indicators display the status of each channel. On the back are unbalanced inputs for each channel plus 2-pole Phoenix style push-in speaker terminals. Also located on the back are volume controls for volume balancing, along with 2 digital audio inputs (either coax or optical) that can be bussed, and channel summing circuits for easy mono signal distribution.

Other features included on the MI128 are: Power Guard® signal overload technology that prevents overdriving the speakers; our Sentry Monitor™ short-circuit protection circuit that disengages the output stage before current exceeds safe operating levels and then resets automatically when operating conditions return to normal; BUS input & outputs to easily distribute a stereo signal to multiple outputs and/or multiple amplifiers; individual channel inputs; 12 Volt triggering capabilities; and eco-friendly on/off signal sensing that turns the unit off if no input signal has been detected for a set amount of time or automatically turns the amp on when it senses a signal.

The MI128 includes many McIntosh design cues including a black glass front panel housing an illuminated McIntosh logo, along with a familiar form factor that is highlighted with silver trim.

Highlights

  • Type: Digital
  • 120 Watts x 8-Channels into 8 Ohms
  • 150 Watts x 8-Channels into 4 Ohms
  • Power Guard®, Sentry Monitor™, On/Off signal sensing, Bussable inputs
  • 2U rack mountable

Specifications

Channels
8
How many speakers it drives at once: 2 for stereo.
Model code
MCINTOSH-MI128
Quote it when you ask a specialist.

Electronic Specifications

FTC Power Output Rating
120 W
Power Output per Channel
120 W into 8 ohms 150 W into 4 ohms
Number of Channels
8
Total Harmonic Distortion
0.05%
S/N below rated output
95dB
Dynamic Headroom
8 ohms: 2.1dB 4 ohms: 3.3dB
Damping Factor
8 ohms: >65 4 ohms: >32
Rated Power Band
20Hz to 20kHz
Frequency Response
+0, -0.5dB from 20Hz to 20kHz

Control

Remote Power Control
Yes
Multi-Channel DB25 Cable
N/A

Connectivity

Speaker Binding Post Type
2-pole Phoenix style push-in speaker terminals

General Specifications

Circuit Configuration
Closed loop digital switching
Circuit Design
Digital
Mono Bridge
N/A
Mono Parallel
N/A
Output Type
Direct Coupled
Meters
No
Meter Light Switch
No
Balanced Input
0
Front Panel
Glass with removable rack mounting ears
Illumination
Direct LED
Chassis Style
Black painted steel
BTU Rating
1000 BTU/h

Weights & Dimensions

Unit Dimensions (W x H x D)
17-1/2" (44.45cm) (19" (48.3cm with mounting ears)) x 4-5/16" (11cm) (including feet) x 21" (53.3cm) (including front panel and cables)
Unit Weight
22 lbs (10 kg)
Shipping Weight
38.4 lbs (17.4 kg)

Downloads

3

More from McIntosh

Similar products

Price on requestRequest a price