Solid State Specifications; Vacuum Tube Specifications; General Specifications - McIntosh MC901 Owner's Manual

Solid State Specifications

Power Output Solid State
600 watts into 2 Ohm load
600 watts into 4 Ohm load
600 watts into 8 Ohm load
Rated Power Band
20Hz to 20,000Hz
Dynamic Headroom
2.5dB
Wide Band Damping Factor
Greater than 40
Frequency Response (Direct)
+0, -0.25dB from 20Hz to 20,000Hz
+0, -3.0dB from 10Hz to 100,000Hz
Total Harmonic Distortion
0.005% maximum harmonic distortion at any power level
from 250 milliwatts to rated power, 20Hz to 20,000Hz
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
Signal To Noise Ratio (A Weighted)
122dB below rated output
Input Sensitivity (for rated output)
4.8 Volts Balanced
2.4 Volts Unbalanced
VoltageGain
29dB, 8 Ohms
26dB, 4 Ohms
23dB, 2 Ohms
Input Impedance
22,000 ohms Balanced
22,000 ohms Unbalanced

Vacuum Tube Specifications

Power Output Vacuum Tube
300 watts into 2 ohm load
300 watts into 4 ohm load
300 watts into 8 ohm load
Rated Power Band
20Hz to 20,000Hz
Dynamic Headroom
1.2dB
Wide Band Damping Factor
Greater than 18
Frequency Response (Direct)
+0, -0.5dB from 20Hz to 20,000Hz
+0, -3.0dB from 10Hz to 70,000Hz
Total Harmonic Distortion
0.5% maximum harmonic distortion at any power level
from 250 milliwatts to rated power, 20Hz to 20,000Hz
Intermodulation Distortion
0.5% 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
Signal To Noise Ratio (A Weighted)
112dB below rated output
Input Sensitivity (for rated output)
3.4 Volts Balanced
1.7 Volts Unbalanced
VoltageGain
29dB, 8 Ohms
26dB, 4 Ohms
23dB, 2 Ohms
Input Impedance
22,000 ohms Balanced
22,000 ohms Unbalanced

General Specifications

Power Control Input
5-15VDC, less than 1mA
Power Control Output
12VDC, 25mA (Delayed 0.2 seconds from power on)
Power Requirements
100 Volts ~ 50/60Hz at 15 Amps
110 Volts ~ 50/60Hz at 12.5 Amps
120 Volts ~ 50/60Hz at 12 Amps
127 Volts ~ 50/60Hz at 12 Amps
220 Volts ~ 50/60Hz at 12 Amps
230 Volts ~ 50/60Hz at 6.5 Amps
240 Volts ~ 50/60Hz at 6.5 Amps
Standby, less than 0.5 watt
Refer to the rear panel of the MC901 for the correct
voltage.
Overall Dimensions
Width is 17-1/2 inches (44.5cm)
Height is 13-1/4 inches (33.7cm) including feet
Depth is 29-1/2 inches (74.9cm)
Weight
180 pounds (81.6kg) net
200 pounds (90.7kg) in shipping carton
Shipping Carton Dimensions
Width is 24-13/16 inches (63cm)
Depth is 36-1/4 inches (92.1cm)
Height is 18-3/8 inches (46.7cm)
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