Page 1
PERFORMANCE SPECIFICATIONS
2
1. The heavy lines on the schematic 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 (10 megaohm) voltmeter must be used.
3. Unless otherwise specified:
a. Resistor values are in ohms.
b. Capacitor values are microfarads (uF).
c. Inductor values are in microhenries (uH).4. On PC board drawings, Square pad indicates:
a. Polarized Capacitors - Positive
b. Diodes - 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
Power Output
Minimum sine wave continuous average power output per
channel, all channels operating is: 200 watts into 4 ohm or
8 ohm load
Rated Power Band
20Hz to 20,000Hz
Total Harmonic Distortion
Maximum Total Harmonic Distortion at any power level from
250 milliwatts to rated power output is: 0.005% for 4 or 8
ohm loads
Dynamic Headroom
1.7dB
Frequency Response
+0, -0.25dB from 20Hz to 20,000Hz
+0, -3dB from 10Hz to 100,000Hz
Sensitivity
1.0 Volt Unbalanced with a 4 ohm Loudspeaker
2.0 Volt Balanced with a 4 ohm Loudspeaker
1.4 Volt Unbalanced with a 8 ohm Loudspeaker
2.8 Volt Balanced with a 8 ohm Loudspeaker
A-Weighted Signal To Noise Ratio
89dB (112dB below rated output)Intermodulation Distortion
Maximum Intermodulation Distortion if instantaneous peak
output per channel does not exceed twice the rated output, for
any combination of frequencies from 20Hz to 20,000Hz, with
all channels operating is: 0.005% for 4 or 8 ohm loads
Input Impedance
20,000 ohms Balanced
10,000 ohms Unbalanced
Wide Band Damping Factor
Greater than 60 at 4 ohms
Greater than 140 at 8 ohms
Power Requirements
100 Volts, 50/60Hz at 1440 watts
110 Volts, 50/60Hz at 13.0 amps
120 Volts, 50/60Hz at 12.0 amps
220 Volts, 50/60Hz at 6.0 amps
230 Volts, 50/60Hz at 6.0 amps
240 Volts, 50/60Hz at 6.0 amps
Note: Refer to the rear panel of the MC207 for the correct voltage.
Dimensions
Front Panel: 17-1/2 inches (44.45cm) wide, 9-7/16 inches
(23.97cm) high. Depth behind front mounting panel is
18-3/4 inches (47.63cm), including clearance for connectors.
Weight
83 pounds (37.6kg) net, 116 pounds (52.6kg) in shipping carton
Page 22
J14 RECEPTACLE XLR FEMALE 117685
J16 JACK RCA 1X2 BLK/BLK 14MM
117848
J17 CONN 4 PIN 117215
J18 RECEPTACLE XLR FEMALE 117685
J19 JACK HEADPHONE DUAL BLACK 1/
8,117825"
J20 RECEPTACLE XLR FEMALE 117685
R1 RES MF 1K 1% 1/4W 144090
R2 RES MF 1K 1% 1/4W 144090
R3 RES MF 20K 1% 1/4W 144104
R4 RES MF 221 OHM 1% 1/4W 144172
R5 RES MF 20K 1% 1/4W 144104
R6 RES MF 221 OHM 1% 1/4W 144172
R7 RES MF 100K 1% 1/4W 144113
R8 RES MF 100K 1% 1/4W 144113
R9 RES MF 20K 1% 1/4W 144104
R10 RES MF 20K 1% 1/4W 144104
R11 RES MF 10K 1% 1/4W 144053
R12 RES MF 10K 1% 1/4W 144053
R13 RES MF 10 OHM 1% 1/4W 144157
R14 RES MF 10K 1% 1/4W 144053
R16 RES MF 100K 1% 1/4W 144113
R17 RES MF 10K 1% 1/4W 144053
R18 RES MF 100K 1% 1/4W 144113
R19 RES MF 10 OHM 1% 1/4W 144157
R20 RES MF 1K 1% 1/4W 144090
R21 RES MF 20K 1% 1/4W 144104
R22 RES MF 221 OHM 1% 1/4W 144172
R23 RES MF 1K 1% 1/4W 144090
R24 RES MF 100K 1% 1/4W 144113
R25 RES MF 20K 1% 1/4W 144104
R26 RES MF 20K 1% 1/4W 144104
R27 RES MF 221 OHM 1% 1/4W 144172
R28 RES MF 100K 1% 1/4W 144113
R29 RES MF 10K 1% 1/4W 144053
R30 RES MF 20K 1% 1/4W 144104
R31 RES MF 10K 1% 1/4W 144053
R33 RES MF 100K 1% 1/4W 144113
R34 RES MF 10K 1% 1/4W 144053
R35 RES MF 10K 1% 1/4W 144053
R37 RES MF 100K 1% 1/4W 144113
R38 RES MF 1K 1% 1/4W 144090
R39 RES MF 20K 1% 1/4W 144104
R40 RES MF 221 OHM 1% 1/4W 144172
R41 RES MF 100K 1% 1/4W 144113
R42 RES MF 20K 1% 1/4W 144104
R43 RES MF 10K 1% 1/4W 144053
R44 RES MF 10K 1% 1/4W 144053
R45 RES MF 100K 1% 1/4W 144113
R46 RES MF 100 OHM 1% 1/4W 144196
R47 RES MF 1K 1% 1/4W 144090
R48 RES MF 20K 1% 1/4W 144104 R49 RES MF 221 OHM 1% 1/4W 144172
R50 RES MF 100K 1% 1/4W 144113
R51 RES MF 20K 1% 1/4W 144104
R55 RES MF 10K 1% 1/4W 144053
R56 RES MF 10K 1% 1/4W 144053
R58 RES MF 100K 1% 1/4W 144113
R59 RES MF 1K 1% 1/4W 144090
R60 RES MF 20K 1% 1/4W 144104
R61 RES MF 221 OHM 1% 1/4W 144172
R62 RES MF 100K 1% 1/4W 144113
R63 RES MF 20K 1% 1/4W 144104
R64 RES MF 100 OHM 1% 1/4W 144196
R65 RES MF 10K 1% 1/4W 144053
R66 RES MF 10K 1% 1/4W 144053
R68 RES MF 100K 1% 1/4W 144113
S1 SWITCH SLIDE 148059
SP1 BRACKET PCB CARD MOUNTING
003611
U1 IC DUAL OPERATIONAL AMPLIFIER
133260
U2 IC DUAL OPERATIONAL AMPLIFIER
133260
U3 IC DUAL OPERATIONAL AMPLIFIER
133260
U4 IC DUAL OPERATIONAL AMPLIFIER
133260
050064 HEATSINK1 PCB
C1 CAP ELECT 47UF 35V 066446
C2 CAP ELECT 47UF 35V 066446
C3 CAP MONO .1uF 50V 20% Z5U
061305
C4 CAP POLYPROP 0.15UF 10% 250VDC
064363
C7 CAP MONO 100PF 100V 10% NPO
061300
C8 CAP MONO 100PF 100V 10% NPO
061300
C9 CAP MONO .01UF 50V 20% X7R
061304
C14 CAP MONO 100PF 100V 10% NPO
061300
C16 CAP MONO .01UF 50V 20% X7R
061304
C22 CAP ELECT 220UF 25V 066507
C27 CAP MONO 100PF 100V 10% NPO
061300
C30 CAP ELECT 47UF 35V 066446
C31 CAP ELECT .47UF 50V 066244
C32 CAP MONO .1uF 50V 20% Z5U
061305
C33 CAP MONO .1uF 50V 20% Z5U
061305
PARTS LIST cont
MC207
37
3A
3B