PERFORMANCE SPECIFICATIONS
1. The heavy lines on the schematics denote the
primary signal path.
2. Unless otherwise noted, all voltages indicated on
the schematics are measured under the following
conditions:
a. AC input at 120 volts, 50/60Hz
b. All voltages are +/-10% with respect to ground.
A high impedance (10megaohm) voltmeter must
be used.
3. Unless otherwise specified:
a. Resistors values are in ohms.
b. Capacitor values are in microfarads (uF).
c. Inductor values are in microhenries (uH).
4. On PC Board Drawings, Square Pad Indicates:
a. Polarized Capacitors - Positive
b. Diode - Cathode
c. Others - Pin 1
5. WARNING:
Parts marked with the symbol have critical
characteristics. Use only replacement parts recom
mended by the manufacturer.
NOTES
2
Power Output
130 watts into 8, 4 or 2 ohm loads is the minimum sine
wave continuous average power output per channel from
20Hz to 20,000Hz with both channels operating.
Total Harmonic Distortion
0.5% maximum harmonic distortion at any power level
from 250 milliwatts to rated power per channel from
20Hz to 20,000Hz with both channels operating.
Intermodulation Distortion
0.5% maximum intermodulation distortion if instanta-
neous peak power output does not exceed twice the
output rating per channel with both channels operating,
for any combination of frequencies from 20Hz to
20,000Hz.
Rated Power Band
20Hz to 20,000Hz
Frequency Response (at 1 watt)
+0, -0.25dB from 20Hz to 20,000Hz
+0, -3dB from 10Hz to 100,000Hz
Hum and Noise (A-Weighted)
100dB below rated output
Damping Factor
Greater than 18
Output Load Impedance
2, 4 or 8 ohms
Input Impedance
20k ohms Unbalanced (RCA Phono Jacks)
40k ohms Balanced (XLR Connectors)
Input Sensitivity (Switch Selectable)
2.5 volts for rated output
1.2 volts for rated output (1 volt for 100 watts output)
Tube Compliment
8 – KT88 or 6550 Output Tubes
4 – 12AX7A Input Tubes
2 – 12AT7 Driver Tubes
Power Requirement
100 Volts, 50/60Hz at 5.8 Amps
120 Volts, 50/60Hz at 4.8 Amps
230 Volts, 50/60Hz at 2.5 Amps
Note: Refer to the rear panel of the MC2000 for the correct voltage.
Dimensions
17-3/4 inches (45.1cm) wide by 11 inches (27.9cm)
high. Depth behind front panel is 18-3/4 inches (47.6
cm). Handle clearance required in front of the mounting
panel is 1-5/8 inches (4.1 cm).
Finish
Stainless Steel Chassis with Titanium Gold Super Mirror
Finish, Black Transformer Enclosures, Black Base,
Glass Front Panel with gold plated Handles and Knobs
Weight
Amplifier - 135 pounds (61.2 kg) net, 144 pounds
(65.3 kg) in shipping carton
Accessories - 18 pounds (8.2 kg) in shipping carton
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