

MI1250 12-Channel Digital Amplifier
MI1250: £4995
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 paired with extremely robust power supplies, producing performance levels rarely achieved in distributed audio.

Front and back of Rack Mounting Bracket.
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.

On the front panel, multi-colour LED indicators display the status of each channel.
Other features included on the MI1250 are:
Power Guard® signal overload technology that prevents overdriving the speakers.
Our Sentry Monitor™ short-circuit protection circuit disengages the output stage before the current exceeds safe operating levels and then resets automatically when operating conditions return to normal.
BUS input & outputs to efficiently distribute stereo signals to multiple outputs and amplifiers.
Individual channel inputs.
12 Volt triggering capabilities to turn other connected McIntosh components on and off automatically.
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 MI1250 includes many McIntosh design cues, including a black glass front panel housing an illuminated McIntosh logo and a familiar form factor highlighted with silver trim.
MI1250 12-Channel DIGITAL Amplifier TECHNICAL SPECIFICATIONS
FTC Power Output Rating:
50 W
Total Harmonic Distortion:
0.05%
Damping Factor:
8 ohms: >65
4 ohms: >32
Power Output per Channel:
50 W into 8 ohms
90 W into 4 ohms
S/N below rated output:
95dB
Rated Power Band:
20Hz to 20kHz
Number of Channels:
12
Dynamic Headroom:
8 ohms: 2.1dB
4 ohms: 3.3dB
Frequency Response:
+0, -0.5dB from 20Hz to 20kHz
WARRANTY PARTS AND LABOUR:
3 Years
GENERAL SPECIFICATIONS
Circuit Configuration:
Closed-loop digital switching
Mono Parallel:
N/A
Meter Light Switch:
No
Illumination:
Direct LED
Circuit Design:
Digital
Output Type:
Direct Coupled
Speaker Binding Post Type:
2-pole Phoenix style push-in speaker terminals
BALANCED INPUT:
No
Chassis Style:
Black painted steel
Mono Bridge:
N/A
METERS:
No
Front Panel:
Glass with removable rack mounting ears
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)
SHIPPING Weight:
38.4 lbs (17.4 kg)