300W Mono Block Amplifier: The McIntosh MC301 monoblock amplifier
delivers 300 watts of power into a single channel at 2, 4, or 8Ω with less than
0.005% distortion for all frequencies from 20Hz to 20,000Hz. Mono block amplification is the ultimate in system configuration as each speaker
has its own dedicated amp, which guarantees maximum channel separation and audio
Exclusive McIntosh Power Assurance System: The McIntosh
MC301 employs a collection of technologies that enhance performance and
reliability while protecting the amplifier and loudspeakers.
- Quad Balanced Circuitry: McIntosh's proprietary Quad
Balanced circuit design yields the highest power level with the least amount
of distortion. The MC301 is fully balanced from input to output. It consists of two matched power amplifiers
operating in push-pull with their outputs combined in a McIntosh Autoformer.
The Quad Balanced configuration cancels virtually all distortion.
- Output Autoformers: McIntosh output Autoformers ensure
every connected speaker receives full power regardless of its impedance. This
unique patented McIntosh technology delivers the full-rated amplifier output
with the least possible distortion into loudspeaker impedances of 2, 4, or
8Ω; you get all the power you paid for and the freedom to choose any
loudspeaker. The Autoformers also provide perfect DC protection for your
- Power Guard + Power Meters: Power Guard is waveform comparison circuit
continuously monitors both input and output signals. Power Guard dynamically
adjusts the input level to avoid clipping while preventing harsh sounding
The amp's front-panel LED indicator will flash when Power Guard is
activated. The Illuminated power output watt meter on the MC301 is peak
responding, and indicates the power output of the amplifier.
- Sentry Monitor: McIntosh Sentry Monitor power output
stage protection circuits ensure the MC301 will have a long and trouble-free
operating life. Sentry Monitor is a fuse-less short-circuit protection
circuit that disengages the output stage before current exceeds safe
operating level; resets automatically.
- ThermalTrak & Thermal Protection: The power amplifier uses ThermalTrak
output transistors for lower distortion and cool operation. Built-in thermal
protection circuits guard against overheating.
Classic McIntosh Design & Specially Designed Power Supply: The MC301 mono block amplifier
incorporates classic McIntosh design cues, including a black glass front-panel,
rotary knobs, brushed aluminum end-caps, illuminated logo, and a power output watt
meter. An oversized power
transformer and extra-large capacitors ensure stable noise free operation.
Balanced & Unbalanced Analog Inputs/Outputs: The McIntosh MC301
amplifier is equipped with one balanced XLR input and one unbalanced
RCA input. There is also a balanced XLR and unbalanced RCA output to daisy-chain
a second mono block amplifier. There is a switch on the back of the amp that
allows you to select between the balanced & unbalanced connections. Balanced
connections guard against induced noise and allow long cable runs without
compromising sound quality.
Gold-Plated, Binding Post Terminals: McIntosh Patented
gold-plated, binding-post speaker terminals deliver high current output to a
single loudspeaker. They accept large diameter wire (up to 10AWG), banana plugs
(single only), and spade lugs. The MC301 features 2, 4, and 8Ω binding post
terminals. There are three Positive (+) terminals and one shared ("common")
Negative (-) terminal.
Note: You can connect one loudspeaker to each Positive (+) binding-post
terminal along with the shared ground terminal, for a total of three speakers.
Make sure the speakers ohm rating matches up with the terminals ohm rating.
If you have a 6Ω speaker, use the 4Ω
Power Control In/Out: The MC301's Power Control Input
(3.5mm) receives an On/Off signal from +5 to +12 volts when connected to a
McIntosh component. The mono amplifier's Power Control Output (3.5mm) will in
turn provide a +12 volt Output Signal with a total current up to 50mA to turn
On/Off a connected McIntosh component.
AC Power Cord + Auto Power Off: The McIntosh MC301 mono power amp
has a detachable AC power cord with 3-pole IEC connector. The MC301 incorporates
an Auto Off feature, which automatically places the amplifier into the Power
Saving Standby/Off Mode after approximately 30 minutes of no audio signal.
Mounting Options: The McIntosh MC301 can be placed upright
on a table or shelf, standing on its four feet. It also can be custom installed
in a piece of furniture or cabinet of your choice. The four feet may be removed
from the bottom of the MC301 when it is custom installed. Always provide
adequate ventilation for your MC301. Allow at least 2" above the top, 2" below
the bottom, and 2" on each side of the amplifier, so that airflow is not
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