McIntosh Labs MI128 8-Channel Digital Amplifier
- 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
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. Contact your local dealer to learn more about integrating the MI128 into your custom audio installation.
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Specifications
- FTC Power Output Rating
- 120 W
- Power Output per Channel
- 120 W into 8 ohms150 W into 4 ohms
- Number of Channels
- 8
- Total Harmonic Distortion
- 0.05%
- S/N below rated output
- 95dB
- Dynamic Headroom
- 8 ohms: 2.1dB4 ohms: 3.3dB
- Damping Factor
- 8 ohms: >654 ohms: >32
- Rated Power Band
- 20Hz to 20kHz
- Frequency Response
- +0, -0.5dB from 20Hz to 20kHz
- Remote Power Control
- Yes
- Multi-Channel DB25 Cable
- N/A
- Speaker Binding Post Type
- 2-pole Phoenix style push-in speaker terminals
- 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
- 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)
Manufacturer's Description — McIntosh Labs
- 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
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. Contact your local dealer to learn more about integrating the MI128 into your custom audio installation.
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Authorized dealers for McIntosh Labs MI128 8-Channel Digital Amplifier
- Absoulute Audio plus Video — in-store — Aiken, South Carolina, United States (website)
- Holt Hill — online and in-store — Andover, Massachusetts, United States (website)
- Resolution A/V — in-store — New York City, New York, United States (website)
- A Tube High Fidelity — online and in-store — Almere, Flevoland, Netherlands (website)
- Abt Electronics — online and in-store — Glenview, Illinois, United States (website)
- Acoustic Designs Inc. — in-store — Scottsdale, Arizona, United States (website)
- Advance Audio — in-store — Wichita, Kansas, United States (website)
- Ahead Stereo — in-store — Los Angeles, California, United States (website)
- Ajasom — online and in-store — Amadora, Lisboa, Portugal (website)
- Alen Audio — in-store — Extramurs, Comunidad Valenciana, Spain (website)
and 225 more verified dealers