■ The MI1250 12-Channel Digital Amplifier can distribute pristine music
playback in multiple rooms in your home.
■ 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.
■ Installer-friendly physical dimensions and is 2U rack mountable via the
included mounting ears (ears are removable for non-rack installations).
■ A highly efficient Class D amplifier, it does not require noisy cooling fans
to maintain nominal operating temperature.
■ Multi-color LED indicators display the status of each channel. Features
unbalanced inputs plus 2-pole Phoenix style push-in speaker terminals
for each channel.
■ Includes 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: Power Guard® signal overload technology
that prevents overdriving the speakers; Sentry Monitor™ short-circuit
protection that disengages the output stage before current exceeds safe
operating levels; 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

SPECIFICATIONS

Power Output:
50 Watts into 8 Ohm speakers
90 Watts into 4 Ohm speakers
Total Harmonic Distortion:
0.05% maximum from 20Hz to 20kHz
Signal to Noise Ratio:
85dB
Dynamic Headroom:
8 Ohms: 2.1dB
4 Ohms: 3.3dB
Damping Factor:
8 Ohms: >65
4 Ohms: >32
Frequency Response:
+0, -0.5dB from 20Hz to 20kHz
Inputs:
12 Unbalanced
2 Digital (coax or optical)
2 BUS
BTU Rating:
900 BTU/h
Overall Dimensions (W x H x D):
17-1/2” (44.45cm) (19” (48.3cm with
mounting ears)) x 4-5/16” (11cm)
x 21” (53.3cm)
Weight:
22 lbs (10kg) net,
38.4 lbs (17.4kg) in shipping carton

For the Consumer’s Protection:
In order to ensure the highest level of
customer satisfaction, new McIntosh
products may only be purchased from an
Authorized McIntosh Dealer; and, with
certain limited exceptions may only be
purchased over-the-counter or delivered
and installed by the Authorized McIntosh
Dealer. McIntosh does not warrant, in any
way, products that are purchased from
anyone who is not an Authorized
McIntosh Dealer, or that have had their
serial numbers altered or defaced.