MX-2000
TABLE
OF
CONTENTS
MX1500 Specifications
MX1500 Printed Circlrit Layotit & Parts List
h4X2500 Component Plac6merit 5
MX
1
500 Ckaiinel Module Assembly Details
MX
1500 Schematic
MX1 500 Primary Wiring Information
MX1500 Chassis Disassembly
MX2000 Specifications 10
MX2000 Compot~ent Placement 11
MX2000 Schematic
MX2000 Pri~i~ary Wiring Information 13
MX
1500 AMPLIFIER CIRCUIT DESCRIPTION
MX'I
500 & MX2000 CIRCUIT DESCRIPTION
Power Supply 14
Complementary Output Tralsistors 15
Complemerttary Driver Transistors, Crossover Bias, and HighILors~ iver circuit
Balanced Illput Circuit. Gain Col~trol, and Frequency Limits
Amplifier Feedback Network, Gain Stage, Distortion LED, atld S11o: ':lircuit Protection
Output Protection and Signal Readout Circuits
Input/O~ltput Coni~ections 1
TROUBLESHOOT1
Excessive Current Draw -20
Signal Amplification Problems 20
Poor Freqi~ei~cy Response 21
Gain
Wrong 22
Incorrect Short Circrrit Current Litnits
D.C.
Fault Without Current Draw
Protection Circuit Troubleshooting 22
Relay Won't Come On 23
No Red "Protect" LED
No M~lting Delay 23
Excess Muting Delay 23
No
Tliennal Sliutoff 23
No DC Protect 23
Relay Fa~~lts With Nor~nally Operating Amplifier
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4
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7
8
9
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14
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15
16
17
18
9
20
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NG
THE MX 1 500/MX2000 A MPLIFTER
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22
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MX15QQ
Specifications
OUTPUT POWER
Continuous Average Output Power both channels driven.
8
ohms, 20 - 2OkHz 0.1% THD 330
8 ohms,
4 ohms, 20 - 20khz 0.1% THD 500
4 ohms,
2 ohms, I kHz 1% THD 750+/-IdB
BRIDGED MONO OPERATION:
16ohms,20-2OkHz 0.1% THD660
16 ohms, I kHz 1% THD720
8 ohms, 20 - 2OkHz 0.1% THD 1000
8
ohms, I kHz 1% THD1100
4 ohms, I kHz
DISTORTION
THD, 20-20kHz, from 250milliwatts to rated power, less that 0.1%, 0.015% typical.
SMPTE-IMD, less than
FREQUENCY RESPONSE: 20-ZOkHz, +/-0.1 dB. 8-300kHz, +0/-3 dB.
DAMPING FACTOR: Greater than 200.
SLEW RATE: 20V per microsecond.
DYNAMIC HEADROOM: 3dB or 1000 watts instantaneous power
NOISE:
SENSITIVITY: 1V
INPUT IMPEDANCE:
DIMENSIONS: 3
WEIGHT:
-1 OOdB, 20-20kHZ.
471bs net,
(per channel):
I
kHz 1% THD360
I
kHz 1% THD570
(8
ohms):
RMS
for rated power
10k unbalanced , 20k balanced.
5"
tall (2 ra~k spaces),
52
Ibs shipping
1%
0.02%, 250 milliwatts to rated power.
THD 1500+/-IdB
(8
ohms).
19"
@ 4 ohms.
wide, 17 9" deep
MX1500
Component Placement
NIX1
500
Channel
Module
Assembly
Dr
ails
MX1500
Schematic
MX1500
Primary
Wiring Information
MX2000
Specifications
OUTPUT POWER (per channel):
Continuous Average Output Power both channels driven.
8
ohms,
20 - 20kHz 0.1% THD 375
8
ohms,
?kHz 1% THD425
4
ohms,
20 - 20kHz 0.1% THD 600
4
ohms,
1 kHz 1% THD725
2
ohms, I kHz 1% THD 1000 +I- IdB
BRIDGED MONO OPERATION:
16
ohms,
20 - 2OkHz 0.1 % THD 750
8
ohms,
20 - 20kHz 0.1% THD 1200
4
ohms, I kHz 1
%
THD 2000 +I- IdB
DISTORTION
(8
ohms):
THD, 20-20kHz,
SMPTE-IMD,
less than
at rated power, less that
FREQUENCY RESPONSE:
DAMPING FACTOR:
SLEW RATE:
20V
DYNAMIC HEADROOM:
NOISE:
-1 OOdB, 20-20kHZ
SENSITIVITY:
INPUT IMPEDANCE:
DIMENSIONS:
WEIGHT:
701bs net,
Greater than
per microsecond.
2dB
at rated power.
1.07V
RMS
for rated power
10k
unbalanced , 20k
5.25"
tall
(2
76
Ibs shipping.
0.025%
20-20kHz, +I-0.1
at 4 ohms.
rack spaces),
at rated power.
200.
19"
0.1%.
dB.
8-300kHz, +0/-3
(8
ohms).
balanced.
wide,
1'7.9"
dB.
deep.
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