Aesthetically, the MC303 is every bit as McIntosh as any of our products. A polished stainless steel chassis, classic black glass front panel, knobs and custom machined aluminum handles all come standard. Contact your local dealer to learn more.
Features
• Three 300 Watt Channels
• 60 Amps Output Current
• Large Gold Plated Five-Way Binding Poss
EXCLUSIVE MCINTOSH POWER ASSURANCE SYSTEM
A collection of technologies that enhance performance and reliability while protecting the amplifier and loudspeakers.
POWER GUARD®
A waveform comparison circuit continuously monitors both input and output signals. Power Guard dynamically adjusts the input level to avoid clipping while preventing harsh sounding distortion.
SENTRY MONITORTM
Fuse-less short-circuit protection circuit disengages the output stage before current exceeds safe operating level – resets automatically.
OUTPUT AUTOFORMERTM
Unique McIntosh technology delivers the full rated amplifier output with the least possible distortion into loudspeaker impedances of 2, 4, or 8 Ohms; you get all the power you paid for and the freedom to choose any loudspeaker.
WATTMETER
Swift, accurate response reveals program peaks so staying within the power limits of your loudspeakers is easy.
Power Output
Minimum sine wave continuous average power output per channel, all channels operating: 300 watts into a 2 ohm, 4 ohm or 8 ohm load
Output Load Impedance
2, 4 or 8 ohms
Rated Power Band
20Hz to 20,000Hz
Total Harmonic Distortion
0.005% maximum harmonic distortion at any power level from 250 milliwatts to rated power, 20Hz to 20,000Hz
Dynamic Headroom
1.8dB
Frequency Response
+0, -0.25dB from 20Hz to 20,000Hz
+0, -3dB from 10Hz to 100,000Hz
Input Sensitivity (for rated output):
1.7 Volt Unbalanced
3.4 Volt Balanced
Signal To Noise Ratio (A-Weighted)
112dB below rated output
Intermodulation Distortion
0.005% maximum, if the instantaneous peak power output does not exceed twice the rated power output for any combination of frequencies from 20Hz to 20,000Hz.
Wide Band Damping Factor
Greater than 40
Input Impedance
10,000 ohms
Power Guard
Less than 2% THD with up to 14dB overdrive at 1,000Hz
Power Control Input
5VDC - 12VDC
Power Control Output
12VDC, 25mA maximum, delay 0.2 seconds
Power Requirements
100 Volts, 50/60Hz at 12 Amps
110 Volts, 50/60Hz at 11 Amps
120 Volts, 50/60Hz at 10 Amps
220 Volts, 50/60Hz at 6 Amps
230 Volts, 50/60Hz at 6 Amps
240 Volts, 50/60Hz at 6 Amps
Standby
Less than 1 watt
Note: Refer to the rear panel of the MC303 for the correct voltage.
Overall Dimensions
Width is 17-3/4 inches (45.09cm)
Height is 12-3/8 inches (31.43cm) including feet
Depth is 22 inches (55.88cm) including the Front Panel and Cables
Weight
155 pounds (70.3 kg) net, 180 pounds (81.6 kg) in shipping carton
Shipping Carton Dimensions
Width is 31 inches (78.74cm)
Depth is 28 inches (71.12cm)
Height is 17-1/4 inches (43.82cm)
