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McIntosh C2500 Service Manual

McIntosh C2500
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PERFORMANCE SPECIFICATIONS
2
Specications
Frequency Response
+0, -0.5dB from 20Hz to 20,000Hz
+0, -3dB from 10Hz to 100,000Hz
Total Harmonic Distortion
0.08% from 20Hz to 20,000Hz
Rated Output (Main)
2.5V Unbalanced, 5V Balanced
Maximum Output
8V RMS Unbalanced, 16V RMS Balanced
Sensitivity (for rated output)
High Level, 450mV unbalanced, 900mV balanced
Phono MM, 4.5mV
Phono MC, 0.45mV
Signal To Noise Ratio (A-Weighted)
High Level, 100dB below rated output
Phono MM, 75dB below 5mV input
Phono MC, 75dB below 0.5mV input
Input Impedance
High Level, 22K ohms unbalanced, 44k ohms balanced
Phono MM, 47K ohms; 50 to 750pF, in 50pF steps
Phono MC, 25, 50, 100, 200, 400 or 1,000 ohms;
100pF
Maximum Input Signal
High Level, 8V Unbalanced, 16V Balanced
Phono MM, 80mV
Phono MC, 8mV
Voltage Gain
High Level to Record Output: 0dB
High Level to Main Output: 15dB
Phono MM to Record Output: 40dB
Phono MC to Record Output: 60dB
Output Impedance
220 ohms
Headphone Impedance
20 ohms to 600 ohms
Digital Input Sample Rates
Optical: 16Bit, 24Bit - 32kHz to 96kHz
Coaxial: 16Bit, 24Bit - 32kHz to 96kHz
USB: 16Bit, 24Bit, 32Bit - 32kHz to 192kHz
Power Control and Trigger Output
12VDC, 25mA
Power Requirements
Field AC Voltage conversion of the C2500 is not possible.
The C2500 is factory congured for one of the following AC
Voltages:
100 Volts, 50/60Hz at 50 watts
110 Volts, 50/60Hz at 50 watts
120 Volts, 50/60Hz at 50 watts
220 Volts, 50/60Hz at 50 watts
230 Volts, 50/60Hz at 50 watts
240 Volts, 50/60Hz at 50 watts
Standby Power, less than 0.5 watts
Note: Refer to the rear panel of the C2500 for the correct voltage.
Overall Dimensions
Width is 17-1/2 inches (44.45cm)
Height is 7-5/8 inches (19.37cm) including feet
Depth is 18 inches (45.72cm) including the Front Panel,
Knobs and Cables
Weight
30.5 pounds (13.8 kg) net, 46 pounds (20.9 kg) in shipping
carton
Shipping Carton Dimensions
Width is 27 inches (68.6cm)
Height is 14 inches (35.6cm)
Depth is 25 inches (63.5cm)
NOTES

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McIntosh C2500 Specifications

General IconGeneral
Total Harmonic Distortion0.08%
Signal to Noise Ratio100dB
Rated Output Voltage2.5V unbalanced, 5V balanced
Maximum Output Voltage8V unbalanced, 16V balanced
High Level Voltage Gain15dB
TypeVacuum Tube Preamplifier
Inputs6 unbalanced, 2 balanced, 1 phono MC, 1 phono MM
Outputs3 unbalanced, 2 balanced
Weight29 lbs (13.2 kg)
Input Impedance47k ohms
Phono Voltage Gain40dB (MM), 60dB (MC)
Frequency Response+0, -0.5dB from 20Hz to 20, 000Hz +0, -3dB from 10Hz to 100, 000Hz

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