McIntosh MA5100 Service Information

MA 5100
ELECTRICAL SPECIFICATIONS
Power Output:
90 watts RMS continuous, 45 watts per channel operating simultaneously into
4 ohm or 8 ohm loads.
60 watts RMS continuous, 30 watts per channel operating simultaneously into
16 ohm loads.
Harmonic Distortion:
Less than 0.25% at rated power output from 20Hz to 20,000Hz with both chan-
nels operating.
Intermodulation Distortion:
Less than 0.25% for any combination of frequencies from 2QHz to 20,000Hz
if instantaneous peak power is 90 watts per channel or less into 4 or 8 ohm
loads and 60 watts per channel or less into 16 ohm loads with both channels
operating.
Frequency Range:
At rated output both channels: ±0.5dB 20Hz through 20,000Hz.
Output Impedance:
4 ohm, 8 ohm, 16 ohm. No impedance switching required.
Internal Impedance/Damping:
Less than .04 ohms; damping factor greater than 100.
Input Sensitivity And Impedance:
Auxiliary, Tape, Tuner, and Tape Monitor: 300mV, 250K ohms.
Phono 1 and Phono 2: 2mV, 47,000 ohms.
Tape Head: 2mV, 1/2 megohm.
Hum And Noise:
High Level Inputs: 75dB below rated output.
Low Level Inputs: 70dB below 10mV input.
Power Amplifier: 90dB below rated output.
Tape Output:
300mV at rated sensitivity, 1.4 volts with 10mV at phono input.
Left Plus Right Output:
Adjustable 0 to 6 volts from generator impedance of less than 5,000 ohms.
Bass Controls:
+18dB at 20Hz.
Treble Controls:
+l8dB at 20,000Hz.
HF Filter:
Flat, or 5,000Hz cutoff.
LP Filter:
Plat, or 50Hz cutoff.
Power Requirements;
117 volts AC, 50-60Hz, 70 watts at zero signal output, 200 watts at rated
output.

McIntosh MA5100 Specifications

General

Frequency Response	20Hz to 20kHz
Input Sensitivity (MM)	2.5 mV
Signal to Noise Ratio (MM)	70 dB
Signal to Noise Ratio (Line)	80dB
Output Impedance	4, 8, 16 ohms
Input Impedance (Line)	250k ohms
Input Impedance (MM)	47k ohms
Total Harmonic Distortion	0.5%
Input Sensitivity (Line)	250 mV
Type	Solid State Integrated Amplifier
Power Output	45 watts per channel