McIntosh MI254 Brochure
MI254
power amplifier
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The MI254 4-Channel Digital Amplier is a versatile multi-channel
amplier ideal for use in distributed audio, home theater or 2-channel
stereo playback.
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Delivers 250 Watts into 8 Ohm speakers or 300 Watts into 4 Ohm
speakers via highly sophisticated closed loop digital switching ampliers
that are paired with extremely robust power supplies to produce
performance levels that are rarely achieved in distributed audio.
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Installer-friendly physical dimensions and is 2U rack mountable via the
included mounting ears (ears are removable for non-rack installations).
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As a highly efcient Class D amplier, it does not require noisy cooling
fans to maintain nominal operating temperature.
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Two McIntosh Watt Meters display the summed power output of
channels 1 + 2 and channels 3 + 4. Multi-color LED indicators display
the status of each channel. Features a balanced and unbalanced input
for each channel along with our standard 5-way speaker binding posts.
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Other features included: Loudspeaker 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 ampliers; individual channel inputs;
12 Volt triggering capabilities; and eco-friendly on/off signal sensing.
Distributed Audio or Home Theater Amplifier
www.mcintoshlabs.com
MI254
power amplifier
Power Output:
250 Watts into 8 Ohm speakers
300 Watts into 4 Ohm speakers
Total Harmonic Distortion:
0.025% maximum from 20Hz to 20kHz
Signal to Noise Ratio:
100dB
Dynamic Headroom:
8 Ohms: 2.5dB
4 Ohms: 3.5dB
Damping Factor:
8 Ohms: >85
4 Ohms: >45
Frequency Response:
+0, -0.9dB from 20Hz to 20kHz
Inputs:
4 Balanced
4 Unbalanced
2 BUS
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:
23.5 lbs (10.7kg) net,
40 lbs (18.1kg) 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.
Companion Products
The MX160 and MX122 A/V Processors, MVP901 Blu-Ray Player, WS500 and WS300 In-Wall Loudspeakers, and CS200 In-Ceiling Loudspeaker
are logical companions for the MI254 Power Amplier. Your Authorized Dealer can provide additional information on other McIntosh
product combinations.
To learn more, please call us at 1.800.538.6576.
35108600
www.mcintoshlabs.com
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