McIntosh MC2301 - Manual (Page 7)

7
XLR Connectors
Below is the Pin configuration for the XLR Balanced In-
put, Input/Output Connectors on the MC2301. Refer to the
diagram for connection:
PIN 1: Shield/Ground
PIN 2: + Output
PIN 3: - Output
Power Control Connector
The MC2301 Power Control Input receives an On/Off sig-
nal from +5 to +12 volts. The Power
Control Output will in turn provide a
+12 volt Output Signal with a current
up to 20mA. An additional connection
is for controlling the illumination of
the MC2301 Power Output Meter. The
1/8 inch stereo mini phone plug connects to a McIntosh
A/V Control Center Power Control Output.
Note: The Power Control Connecting Cable is available from
the McIntosh Parts Department:
Data and Power Control Cable Part No. 170-202
Six foot, shielded 2 conductor, with 1/8 inch stereo mini
phone plugs on each end.
Connector Information, Introduction and Performance Features
Connector and Cable Information
Introduction
Performance Features
Power
Control
Meter
Illumination
Control Ground
Now you can take advantage of traditional McIntosh
standards of excellence in the MC2301 Tube Power Ampli-
fier. The 300 watt power output will drive any high quality
Loudspeaker System to its ultimate performance. The
MC2301 reproduction is sonically transparent and abso-
lutely accurate. The McIntosh Sound is “The Sound of the
Music Itself.”
• Power Output
The MC2301 is a Tube Power Amplifier with a capabil-
ity of 300 watts into 2, 4 or 8 ohm speakers with less than
0.5% distortion.
• Full Balanced Unity Coupled Circuitry
The MC2301 is fully balanced from input to output. It con-
sists of two matched Power Amplifiers operating in push-
pull using the famous McIntosh Patented Unity Coupled
Circuit. The circuit outputs are combined in a dual core
McIntosh Multifilar Wound Output Transformer for low
distortion, extended frequency response and cool operating
output tubes.
• Balanced and Unbalanced Input
Balanced connections guard against induced noise and al-
low long cable runs without compromising sound quality.
• Sentry Monitor Tube and Thermal Protection
McIntosh Sentry Monitor Tube Protection Circuits ensure
the MC2301 will have a long and trouble free operating
life. Built-in Thermal Protection Circuits guard against
overheating.
• Illuminated Power Meter
The Illuminated Power Output Watt Meter on the MC2301
is peak responding, and indicates the true power output of
the amplifier. The Peak Watt Hold Mode allows the meter
to temporarily stay at the highest power output and then
slowly decay. The Front Panel Meter Illumination may be
switched Off at any time.
• Gold Plated Connectors and Tube Socket Contacts
Gold Plated Input Jacks and Output Binding Posts provide
trouble free connections. Ceramic tube sockets with gold
plated contacts provide protection from atmospheric con-
tamination. Output Tube Sockets include Air-Pipe cooling
at their bases.
• Special Power Supply
A regulated Power Supply, a very large core Power Trans-
former and large capacitors ensure stable noise free opera-
tion even though the power line varies.
• Fiber Optic Solid State Front Panel Illumination
The even Illumination of the Front Panel is accomplished
by the combination of custom designed Fiber Optic Light
Diffusers and extra long life Light Emitting Diodes
(LEDs).
• Glass Front Panel and Super Mirror Chassis Finish
The famous McIntosh Illuminated Glass Front Panel and
the Stainless Steel Chassis with Super Mirror Finish en-
sure the pristine beauty of the MC2301 will be retained for
many years.
PIN 2 PIN 1
PIN 3