McIntosh - MI1250 12-Channel Digital Amplifier

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Description:

  • Ideal for multi-zone distributed audio
  • 50 Watts into 8 Ohms
  • 90 Watts into 4 Ohms
  • 2U rack-mountable
  • Channel summing circuits for mono signal distribution
  • Volume controls for each channel
  • Bussable inputs
  • Signal sensing
  • Power Guard® and Sentry Monitor™

Delivers pristine music playback to multiple rooms for whole house audio.

The versatile MI1250 12-Channel Digital Amplifier can distribute pristine music playback to multiple rooms in your home. It delivers 50 Watts into 8 Ohm speakers or 90 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.

McIntosh MI347 Amplifier
Front and back of Rack Mounting Bracket.

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.

McIntosh MI1250 Amplifier

On the front panel, multi-color LED indicators display the status of each channel.

On the back are unbalanced inputs plus 2-pole Phoenix style push-in speaker terminals for each channel. 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.

McIntosh MI1250 Amplifier

Other features included on the MI1250 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 to automatically turn other connected McIntosh components on and off.
  • 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.
McIntosh MX100 A/V Processor, MI347 Amplifier, MI254 Amplifier
Typical McIntosh custom install products installed in an A/V rack using our Rack Mounting Brackets.

The MI1250 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 MI1250 into your custom whole house audio installation.



Specifications:

ELECTRONIC SPECIFICATIONS

  • Power Output per Channel
    50 Watts into 8 Ohms
    90 Watts into 4 Ohms
  • Number of Channels
    12
  • 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 20,000Hz

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
    900 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)

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