Specifications - McIntosh MXA60 60th Anniversary Owner's Manual

Amplifier Specifications
Power Output
75 watts into an 8 ohm load is the minimum sine
wave continuous average power output, both channels
operating
Output Load Impedance
8 ohms
Rated Power Band
20Hz to 20,000Hz
Total Harmonic Distortion
0.05% maximum harmonic distortion at any power
level from 250 milliwatts to rated power, 20Hz to
20,000Hz
Dynamic Headroom
1.6dB
Frequency Response
+0, -0.5dB from 20Hz to 20,000Hz
+0, -3dB from 10Hz to 100,000Hz
Main/Sub Output
1.2V for rated input (4V Maximun)
Sensitivity (for rated output)
Input 1: 300mV unbalanced
Input 2: 600mV balanced
Signal To Noise Ratio (A-Weighted)
CD, Input1, Input 2: 98dB below rated output
Intermodulation Distortion
0.05% maximum, if the instantaneous peak power out-
put is 150 watts or less per channel with both channels
operating for any combination of frequencies from
20Hz to 20,000Hz
Wide Band Damping Factor
Greater than 100
Input Impedance
Input 1: 20K ohms unbalanced
Input 2: 20K ohms balanaced
Maximum Input Signal
Input 1: 4V
Input 2: 8V
Main/Sub Output Impedance
500 ohms
Power Guard
Less than 2% THD with up to 12dB overdrive at
1,000Hz
Voltage Gain
Input 1 and 2 to Main Output: 12dB
Power Amplifier: 26dB
Tone Controls (Bass and Treble)
Bass ±10dB (in 1dB steps) at 70Hz
Treble ±10dB (in 1dB steps) at 10kHz
Headphone Impedance
20-300 ohms
FM Tuner Specifications
Tuning Range
87.5Mhz - 108.0Mhz (Europe)
87.9Mhz - 107.9Mhz (USA)
76Mhz - 90Mhz (Japan)
Antenna Input
75 Ohms, Type "F" Coax connector
Useable Sensitivity
2.2uV (18.1dBf)
50dB Quieting Sensitivity
1.5uV (14.8dBf)
Signal To Noise Ratio
Mono: 70dB
Stereo: 68dB
Frequency Response
±1dB
20 to 15,000Hz
Harmonic Distortion
Mono: 0.4%
Stereo: 0.8%
Channel Selectivity
60dB Adjacent Channel
66dB Alternate Channel
Stereo Separation
38dB

Specifications

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