McIntosh MA6900 - LITERATURE - User Manual

MA6900
Integrated
Amplifier
“ the power you want and the
flexibility you need all combined
in a
single component”
Designed to deliver a continuous 200 Watts per channel, the MA6900 also
provides selection and control of 6 input sources, including one balanced
input and selectable moving-magnet phono stage. Loudness compensation,
5-band equalizer, precision trimmed volume control and two sets of
switched outputs add to the list of features of this integrated amplifier.
Unique in the world of solid-state amplifiers, the MA6900 utilizes an
autoformer at the output of each channel. The autoformer provides an ideal
match for all types of speakers, regardless of their impedance, and allows
the MA6900 to always deliver all of its rated 200 Watts per channel. Whether
your speakers are 8, 4 or 2 Ohms, the exclusive McIntosh output autoformer
ensures that you will always get all of the power that you pay for.
The preamp section of the MA6900 utilizes encapsulated switching, which
reduces noise to the vanishing point. Instead of taking the music signal
“for a ride” through long wires and open connections that can oxidize and
become intermittent with age, all input switching in the MA6900 is done
using sealed electromagnetic switches located close to the input jacks.
Filled with an inert gas, these glass-encapsulated devices cannot oxidize
and never need cleaning.
Exclusive McIntosh Power Assurance System
Power Guard
®
Clipping Protection
Sentry Monitor
®
Current Protection
Thermal Protection
DC Failure Protection
Turn-On Delay
Soft Start Inrush Protection
Illuminated Peak-Responding Wattmeters
Silent Electromagnetic Switching
Precision-Trimmed Volume Control
Exclusive McIntosh 5-Band Equalizer
Control Data Outputs
Remote Power Control

McIntosh MA6900 - LITERATURE Specifications

General

Power Output per Channel	200 Watts
Total Harmonic Distortion	0.005%
Signal to Noise Ratio (line)	100dB
Damping Factor	>40
Frequency Response	20Hz - 20kHz (+0, -0.5dB)
Input Impedance	20k Ohms
Dimensions	17.5" x 7.125" x 18"
Weight	75 lbs
Input Sensitivity	2.5mV (MM), 250mV (line)
Output Impedance	2, 4, 8 Ohms

Summary

MA6900 Integrated Amplifier Overview

Power and Flexibility

Highlights the MA6900's 200 Watts per channel and 6 input source selection flexibility.

Unique Autoformer Technology

Explains the autoformer's role in matching speakers and delivering rated power regardless of impedance.

Advanced Preamp Design

Details encapsulated switching and sealed electromagnetic switches for signal integrity and noise reduction.

Exclusive McIntosh Features

Lists key technologies including Power Guard, Sentry Monitor, illuminated wattmeters, and 5-band equalizer.

MA6900 Technical Specifications

Performance Metrics

Details frequency response, total harmonic distortion, and intermodulation distortion.

Power Output and Noise Ratio

Specifies power output per channel and A-weighted signal-to-noise ratios for various sections.

Input and Output Specifications

Lists input impedance, sensitivity, output load impedance, and voltage gain parameters.

Physical and Electrical Data

Covers dimensions, weight, power requirements, and equalizer control details.