Description
The versatile MI1250 12-Channel Digital Amplifier can distribute pristine music playback to multiple rooms in your home.
Delivers pristine music playback to multiple rooms for whole house audio.
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.
FEATURES:
- 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
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 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.
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.
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.
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
OTHERÂ 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)
Shipping Weight
38.4 lbs (17.4 kg)
