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Manual McIntosh MI1250 Amplifier

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Manual

Connector Information

Power Control Connector

The MI1250 Power Control Input receives an On/Off

signal from +5 to +12 volts. The Power Control Output

will in turn provide a +12 volt Output Signal with a

total current up to 50mA. An additional connection

is for controlling the illumi-

nation of the MI1250 Meter

Power Output Indicators. The

3.5mm stereo mini phone

plug connects to a McIntosh

Preamplifier or A/V Control

Center Power Control Output.

Introduction

Now you can take advantage of traditional McIntosh

standards of excellence in the MI1250 Power Ampli-

fier. The Twelve Channel Power Amplifier produces

high power output per channel and will drive quality

Loudspeakers to a high level of performance. The

MI1250 reproduction is sonically transparent and ab-

solutely accurate. The McIntosh Sound is “The Sound

of the Music Itself.”

Performance Features

• Power Output

The MI1250 consists of Twelve Power Amplifier

Channels, each capable of 50 watts into 8 ohm or 90

watts into 4 ohm Loudspeakers with distortion less

than 0.05%.

• Loudspeaker Guard

The McIntosh Loudspeaker Guard Circuit prevents

the amplifier from being overdriven into clipping,

with its harsh, distorted sound that can damage your

valuable Loudspeakers.

• Versatile Operation

The MI1250 provides power amplification for up to

twelve channels in a multi-Zone Audio System.

• Unbalanced Inputs

There are twelve Unbalanced Analog Audio Inputs

for all twelve Power Amplifier Channels.

• Digital Audio Inputs

The Digital Inputs decode PCM Signals from exter-

nal sources. The Optical Inputs process Digital Sig-

nals from 32kHz to 192kHz with 24-Bit resolution.

• Sentry Monitor and Thermal Protection

McIntosh Sentry Monitor power output stage protec-

tion circuits ensure the MI1250 will have a long and

trouble free operating life. Built-in Thermal Protec-

tion circuits guard against overheating.

• Power Control

The McIntosh Power Control Circuit allows for

remote turn-on of the MI1250 Power Amplifier from

a McIntosh A/V Control Center or Preamplifier for a

single or dual Zone System.

• Robust Power Supply

A well regulated power supply ensures stable low

noise performance.

• LED Solid State Front Panel Illumination

The even Illumination of the Front Panel is accom-

plished by extra long life Light Emitting Diodes

(LEDs). The Metal and Glass Front Panel ensures

the pristine beauty of the MI1250 will be retained

for many years.

Power

Control

Meter

Illumination

Control

Ground

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Specifications

Brand	McIntosh
Model	MI1250
Category	Amplifiers
File type	PDF
File size	5.53 MB

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Frequently Asked Questions about McIntosh MI1250 Amplifier

Our support team searches for useful product information and answers to frequently asked questions. If you find an inaccuracy in our frequently asked questions, please let us know by using our contact form.

Wat is the difference betwee an amplifier and a pre-amplifier? Verified

An amplifier is often an integrated amplifier, with pre-amplifier and power amplifier in one device. A pre-amplifier regulates volume and sometimes balance and tone and lets you choose what source is used (cd, tape, turntable, etc). A pre-amplifier often provides a little amplification, just enough for the power amplifier. This is an active pre-amplifier. Sometimes a pre-amplifier does not amplify, making it a passive pre-amplifier.

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