Marantz Stereo Amplifier MM9360 User Manual

Model MM9340  
Model MM9360  
Power Amplifier  
 
SAFETY  
INSTRUCTIONS  
READ BEFORE OPERATING EQUIPMENT  
This product was designed and manufactured to meet strict  
11. Power Sources - The appliance should be connected to  
a power supply only of the type described in the operat-  
ing instructions or as marked on the appliance.  
quality and safety standards. There are, however, some in-  
stallation and operation precautions which you should be par-  
ticularly aware of.  
12. Grounding or Polarization - The precautions that should  
be taken so that the grounding or polarization means of  
an appliance is not defeated.  
1. Read Instructions - All the safety and operating instruc-  
tions should be read before the appliance is operated.  
2. Retain Instructions - The safety and operating instruc-  
tions should be retained for future reference.  
13. Power-Cord Protection - Power-supply cords should be  
routed so that they are not likely to be walked on or  
pinched by items placed upon or against them, paying  
particular attention to cords at plugs, convenience recep-  
tacles, and the point where they exit from the appliance.  
3. Heed Warnings - All warnings on the appliance and in  
the operating instructions should be adhered to.  
4. Follow Instructions - All operating and use instructions  
should be followed.  
14. Cleaning - The appliance should be cleaned only as rec-  
ommended by the manufacturer.  
5. Water and Moisture - The appliance should not be used  
near water - for example, near a bathtub, wash-bowl,  
kitchen sink, laundry tub, in a wet basement, or near a  
swimming pool, etc.  
15. Nonuse Periods - The power cord of the appliance should  
be unplugged from the outlet when left unused for a long  
period of time.  
16. Object and Liquid Entry - Care should be taken so that  
objects do not fall and liquids are not spelled into the  
enclosure through openings.  
6. Carts and Stands - The appliance should be used only  
with a cart or stand that is recommended by the manu-  
facturer.  
17. Damage Requiring Service - The appliance should be  
serviced by qualified service personnel when:  
7. An appliance and cart combination should be moved with  
care. Quick stops, excessive force, and uneven surfaces  
may cause the appliance and cart combination to over  
turn.  
A: The power-supply cord or the plug has been dam-  
aged; or  
8. Wall or Ceiling Mounting - The appliance should be  
mounted to a wall or ceiling only as recommended by the  
manufacturer.  
B: Objects have fallen, or liquid has spilled into the ap-  
pliance; or  
C: The appliance has been exposed to rain; or  
9. Ventilation - The appliance should be situated so that its  
location or position does not interfere with its proper ven-  
tilation. For example, the appliance should not be situ-  
ated on a bed, sofa, rug, or similar surface that may block  
the ventilation openings; or, placed in a built-in installa-  
tion, such as a bookcase or cabinet that may impede the  
flow of air through the ventilation openings.  
D: The appliance does not appear to operate normally  
or exhibits a marked change in performance; or  
E: The appliance has been dropped, or the enclosure  
damaged.  
18. Servicing - The user should not attempt to service the  
appliance beyond that described in the operating instruc-  
tions. All other servicing should be referred to qualified  
service personnel.  
10. Heat - The appliance should be situated away from heat  
sources such as radiators, heat registers, stoves, or other  
appliances (including amplifiers) that produce heat.  
3
 
- The power amplifier will accept RCA, 1/4" jack, or XLR  
input connectors.  
1. INTRODUCTION  
Thank you for purchasing the Marantz MM9360 or MM9340  
power amplifier for your sound system. Please take a few  
minutes to read this manual thoroughly, before you attempt  
connections and operations.The illustrations used in this  
manual refer to the six channel MM9360, but the MM9340  
operates in the same manner, only with four channels and  
more power per channel.  
3. NAMES AND FUNCTIONS  
1. SIGNAL indicator  
The signal present LEDs illuminate at an input level of about  
13mVrms (-35.5dBu).  
This Marantz appliance is a Multi channel power amplifier,  
that is designed for home theatre and high quality audio  
systems.  
2. PEAK indicator  
The clipping LEDs illuminate at an input level of about  
870mVrms (+1.0dBu), with all channels driven by 1KHz into  
8. This indicates that the signal processing circuitry has  
determined output levels to be approaching the available  
power supply rails and has begun to “soften” signal peaks.  
Actual onset of “hard” clipping depends on audio program  
and total load impedance and does not occur until the sig-  
nal processing circuitry can no longer compensate, which  
means that signal integrity can be maintained even if the  
clipping indicators illuminate for short periods of time.  
2. FEATURES  
The MM9360 is a six channel power amplifier, and the  
MM9340 is a four channel power amplifier developed for  
use in hi-fi AV systems.  
- It is a high-power amplifier with efficient MOSFET high-  
speed switching output stages, controlled by internal mi-  
croprocessor and DSP algorithms. Rated outputs per  
channel are 150W / 8 ohms for the MM9360 and 275W / 8  
ohms for the MM9340.  
3. THERMAL indicator  
- It is provided with the MARANTZ RC-5 remote control  
capability so its power can be controlled from a MARANTZ  
preamplifier or surround receiver (MARANTZ remote con-  
trol compatible products).  
The thermal LEDs illuminate when the temperature of any  
one of the heat sink extrusions reaches 85 to 90°C. Both  
channels of the affected amplifier module will shut off until  
the measured temperature drops below about 70°C. The  
amplifier should be able to maintain proper operation at  
an ambient room temperature of 50°C (122°F) or less with  
typical audio program and all channels driven into 4.  
- The power amplifier is equipped with LED indicators for  
signal present, peak power, thermal status, and protect  
mode for each channel.  
6
C
H
P
O
W
E
R
A
M
P
L I F IE  
R
M
M
9
3
6
0
PO WER  
O FF  
O N  
PR OT ECT  
TH ER MA L  
PEA K  
SIGN A L  
4
 
4. PROTECT indicator  
5. POWER indicator  
The blue power LED comes on when the amplifier  
The protect LEDs illuminate when the fault monitoring mi-  
croprocessor has determined that one of the following con-  
ditions exists:  
is fully powered up.  
6. POWER switch  
- Power supply undervoltage  
- Power supply overvoltage  
- Output overcurrent  
Press this switch to the ON position to turn the  
power on, and to the OFF position to turn the power off.  
When it is required to remote control the power mode of  
the amplifier, be sure to leave this switch in the ON mode.  
- Heat sink overtemperature  
- Unacceptable DC output content  
- Unacceptable high frequency output content  
- AC power interruption  
7. INPUT LEVEL control  
This control sets the amplifier's output level by  
adjusting its input level. When two adjacent amplifier chan-  
nels are switched into bridge mono mode, only the odd  
number channel level controls (1, 3, 5) determine signal  
level.  
Because the signal processing module processes two  
channels simultaneously, a fault in one channel will result  
in a protect condition for both channels processed by the  
same module, ex. channels 1-2, 3-4, and 5-6 (MM9360  
only). Thus there will never be a case where only one of  
the amplifier channels is shown in protect mode. When a  
pair of protect LED's are illuminated, internal relays have  
removed the channel pair's speaker loads from the ampli-  
fier output and connected the speakers to ground. If the  
fault is isolated to one module (channel pair), the other  
channels will remain unaffected.  
8. STEREO/BRIDGE MONO switch  
This switch selects between normal stereo chan-  
nel mode for two adjacent channels, or bridge mono mode,  
where two channels are supplied the same signal with the  
second channel's phase inverted 180°. The speaker is  
then connected across the (+) red output connections of  
the two channels, resulting in twice the power to the speaker  
that either channel could deliver by itself. Since in Bridge  
Mode both connections have voltage present, never con-  
nect or touch either speaker wire to ground.  
C H 1  
C H  
2
C H 3  
(1-2 MONO)  
5
C H  
4
C H 5  
(1-2 MONO)  
5
C H  
6
(1-2 MONO)  
5
5
5
5
4
3
4
4
4
4
4
0
6
6
6
6
6
6
7
7
7
7
7
7
3
3
3
3
3
8
8
8
8
8
8
2
1
0
2
2
2
2
2
1
1
1
1
1
9
9
9
9
9
9
10  
10  
10  
10  
10  
10  
0
0
0
0
STEREO  
BRIDGE MONO  
PUSH  
STEREO  
BRIDGE MONO  
PUSH  
STEREO  
BRIDGE MONO  
PUSH  
CAUTION  
PUSH  
PUSH  
PUSH  
RISKOFELECTRICSHOCK  
MODEL NO. MM9360  
DONOTOPEN  
50/60Hz 1400W  
115V  
B RID G E M O DE  
TAKE OUTPUT FROM  
TWO RED POSTS  
DO NOT C ONNECT EITHER  
S T E R E O M O D E  
150W / CHAN - 8 OHM S  
250W / CHAN - 4 OHM S  
B RID G E M O DE  
500W BRIDGE - 8 OHMS  
OUTPUT WIRE TO GROUND  
(MONO)  
(MONO)  
(MONO)  
O UTPU TS  
B RID G E  
C H  
1
C H  
DC TRIGGER  
2
C H  
3
C H  
4
C H  
5
C H  
6
B RID G E  
B RID G E  
R C -5  
R
EM O T E  
IN  
O U  
T
C H 1 C H 2  
C H 3  
C H 4  
C H 5  
C H 6  
C O N T R O  
L
-
-
-
+
+
+
IN  
O U  
T
(+)  
C H  
(-)  
(+)  
(+)  
C H  
(-)  
(+)  
C H  
(-)  
(+)  
C H  
(-)  
(+)  
3
C H  
(-)  
4
5
6
1
C H  
(-)  
2
REPLACE ONLY W ITH  
SAME TYPE FUSE  
A C  
REFER TO OWNER'S M ANUAL  
FOR PROPER FUSE RATING  
M A N U F AC TU R E D IN THE U S A B Y A SH LY A U D IO INC O RP O R A TE D  
ꢀꢀ ꢀꢁ ꢀꢂ  
ꢀꢃ  
ꢀꢄ  
5
 
9. INPUT XLR and ¼" PHONE jacks  
(Gnd)  
(+)  
The amplifier uses 1/4" phone jacks and female XLR jacks  
for balanced input signals, recommended for longer input  
cables and to minimize hum and noise.  
Tip (+)  
Ring (-)  
RCA Plug  
Sleeve (Gnd)  
Stereo Phone Plug  
used for balanced  
Balanced Inputs  
It is recommended that balanced input connections be used  
whenever possible to take full advantage of the amplifier's  
common mode rejection properties, and to reduce ground-  
loop problems. The (+) signal is on pin 2 of the XLR, and  
the tip of the phone jack. The (-) signal is on pin 3 of the  
XLR, and the ring of the phone jack.  
Tip (+)  
Sleeve (Gnd)  
Mono Phone Plug  
used for unbalanced  
XLR pins are  
numbered  
on the  
connector  
insert.  
Unbalanced Inputs  
If an unbalanced XLR input connection is used, pin 3 should  
be connected to input ground (pin 1). If the ¼" input jack  
is used unbalanced, the use of a mono (tip-sleeve) plug  
will automatically tie the (-) connection to input ground.  
Note: Never float the (+) or (-) input connection when us-  
ing an unbalanced source.  
XLR Male  
2 = (+)  
3 = (-)  
1 = (gnd)  
ꢀꢁꢂꢃꢄꢅꢆꢇꢈꢁꢉꢅꢊꢄꢇꢇꢋꢌꢉꢄꢍꢅꢎꢏꢈꢋꢐ  
10. RC-5 IN/OUT jack  
13. AC FUSE drawer  
If your system uses a Marantz remote control com-  
patible component with preamplifier outputs, such as an  
A/V preamplifier or surround receiver, these jacks allow  
you to turn the power of the amplifier to ON or OFF/Standby  
through remote control from the preamplifier or receiver.  
Before using these jacks, check the owner's manual of the  
Marantz component to see if it is remote control compat-  
ible.  
This is where the AC line fuse is located. In the event of  
fuse failure, replace only with MDA 12 250V.  
14. INPUT RCA jacks  
Connect the preamplifier output to this jack. Since these  
connections use unbalanced signals, they are more  
succeptable to picking up radiated noise such as magnetic  
field from a large power transformer, electric motors,  
flourescent lights, computer and video cables, etc. For  
best noise performance, keep these cables short and avoid  
passing them near any potential noise source.  
11. AC INLET  
Connect AC cord (Supplied) and plug into a grounded AC  
power outlet.  
12. DC TRIGGER jacks  
15. SPEAKER SYSTEM terminals  
Two 3.5mm jacks are used for remote switching between  
ON status and OFF/Standby status. An external 12 volt  
DC power supply wired in series with a switch is required  
for the DC trigger input. Wire the switched DC to the tip of  
a 3.5mm miniature phone plug for the DC trigger input,  
and wire the power supply ground to the sleeve. Be sure  
to use a latching (push-push) type switch rather than a mo-  
mentary switch. Assuming the amplifier's main AC power  
switch is on, an input voltage transition from 0 to 12 volts  
turns on the amplifier (if already in OFF/Standby mode),  
and after a one second delay provides 12 volts to the DC  
Trigger Out jack for remote control of other amplifiers. A  
DC trigger input voltage transition from 12 volts to 0 volts  
returns the amplifier into Off/Standby mode.  
Dual binding posts provide connections for the speaker out-  
puts. In addition to using the banana-type plug, the bind-  
ing posts have a slotted entry-way for wire-crimped spade  
terminals. In BRIDGE MONO mode, the channel 1, 3, or 5  
red binding post is the (+) in-phase speaker output termi-  
nal and the channel 2, 4, or 6 red binding post becomes  
the (-) out-of-phase speaker terminal.  
CAUTION! NEVER CONNECT THE TWO RED BINDING  
POSTS TOGETHER OR CONNECT EITHER RED BIND-  
ING POST TO A BLACK BINDING POST!  
6
 
C H 1  
C H  
2
C H 3  
(1-2 MONO)  
5
C H  
4
C H 5  
(1-2 MONO)  
5
C H  
6
(1-2 MONO)  
5
5
5
5
4
3
4
4
4
4
4
0
6
6
6
6
6
6
7
7
3
7
3
7
3
7
3
7
3
8
8
8
8
8
8
2
1
0
2
2
2
2
2
1
1
1
1
1
9
9
9
9
9
9
10  
10  
10  
10  
10  
10  
0
0
0
0
STEREO  
BRIDGE MONO  
PUSH  
STEREO  
BRIDGE MONO  
PUSH  
STEREO  
BRIDGE MONO  
PUSH  
CAUTION  
PUSH  
PUSH  
PUSH  
RISKOFELECTRICSHOCK  
DONOTOPEN  
MODEL NO. MM9360  
50/60Hz 1400W  
115V  
B R ID G E M O D E  
TAKE OU TPUT FROM  
TWO RED POSTS  
DO NOT CONNECT EITHER  
OUTPUT WIRE TO GROUND  
S T E R E O M O DE  
150W / CHAN - 8 OHM S  
250W / CHAN - 4 OHM S  
B R ID G E M O D E  
500W BRIDGE - 8 OHMS  
(MONO)  
(MONO)  
(MONO)  
C H  
1
C H  
DC TRIGGER  
2
C H  
3
C H  
4
C H  
5
C H  
6
O UT PU TS  
B R ID G E  
B R ID G E  
B R ID G E  
R C -5 R E M O T E  
C O N T R O L  
IN  
O U  
T
C H 1 C H 2  
C H 3  
C H 4  
C H 5  
C H 6  
-
-
-
+
+
+
IN  
O U  
T
(+)  
C H  
(-)  
(+)  
(+)  
C H  
(-)  
(+)  
C H  
(-)  
(+)  
C H  
(-)  
(+)  
C H  
(-)  
3
C H  
(-)  
4
1
2
5
6
REPACE ONY W ITH  
SAME TYPE USE  
A C  
REFR TO ONER'S MANUA
FOR PROPEFUSE ATING  
M A N A C TU R E D IN TH E U A B Y A H LY A U D IO IN C O R P A TE D  
To  
Power  
Outlet  
Front  
-L-  
Surround  
-L-  
Center  
Center  
Out  
L
R
L
R
Cen  
Sub  
Marantz  
Remote  
Control  
Front  
Surround  
Center  
Typical Surround Preamplifier Outputs  
-
-
+
-
+
-
+
-R-  
-R-  
Sub  
Typical Wiring Diagram  
+
-
+
-
+
4. SPEAKER CONNECTIONS  
6. CARE AND MAINTENANCE  
This equipment, being a high audio output power ampli-  
fier, has a hazardous energy at its speaker terminal. Please  
be sure to make an appropriate speaker connection ac-  
cording to the following procedure:  
This section describes the car and maintenance tasks that  
must be performed to optimize the operation of your  
marantz equipment.  
CLEANING OF EQUIPMENT EXTERNAL SURFACES  
- Confirm that the power switch of the equipment is at "OFF"  
position. If it is at "ON", turn it to "OFF" position to con-  
nect a speaker cable.  
The exterior finish of your unit will last indefinitely with  
proper care and cleaning. Never use scouring pads, steel  
wool, scouring powders or harsh chemical agents (e.g. lye  
solution), alcohol, thinners, benzine insecticide or other  
volatile substances as these will mar the finish of the equip-  
ment.  
- Use a speaker cable with the flame retardant rating of  
type SPT12 or more.  
- For bare wire connections, strip the insulation off no more  
than 3/8" at the speaker terminal connection of speaker  
cable, and twist the exposed wire. For banana-type plugs  
or spade terminals, follow the instructions of the connec-  
tor manufacturer.  
Likewise, never use cloths containing chemical substances.  
If the equipment gets dirty, wipe the external surface with  
a soft, lint free cloth.  
If the equipment becomes heavily soiled:  
- Connect speakers in correct polarity, according to the  
indication for the polarity of speaker terminals. For bare  
wire or spade terminal connections, first loosen the speaker  
terminal by turning in a counter-clockwise direction, insert  
the bare wire or spade terminal, then re-tighten by turning  
the terminal clockwise.  
- Dilute some washing up liquid in water, in a ratio of one  
part detergent to six parts water.  
- Dip a soft, lint free cloth in the solution and wring the  
cloth out until it is damp.  
- Wipe the equipment with the damp cloth.  
- Prevent any stress from being applied to the speaker cable  
connected to the speaker terminal.  
- Dry the equipment by wiping it with a dry cloth.  
- Don't touch the speaker terminals during operation.  
7
 
fier power for that channel is evenly divided among speak-  
ers, so 100 watts driving two parallel speakers of equal  
impedance provides 50 watts to each speaker, etc.  
7. REPAIRS  
Only the most competent and qualified technicians should  
be allowed to service your unit. Marantz and its factory  
trained warranty station personnel have the knowledge and  
special equipment needed for repair and calibration of this  
precision instrument.  
3.) Thermal LED and Protect LEDs stay on:  
An amplifier module is in thermal protect mode  
and needs to cool. The fan will continue to run while in  
thermal protect, and other modules will continue to func-  
tion.  
In the event of difficulty, call the toll-free telephone num-  
ber listed on the face of the warranty to obtain the name  
and address of the Marantz Authorized Service Center  
nearest you. Please include the model, serial number of  
your unit together with a copy of your purchase receipt and  
a full description of what you feel is abnormal in its behav-  
ior.  
4.) Power LED lit but no Signal LED activity  
There is no input signal applied or input level controls are  
turned down.  
8.2 Distorted Sound  
1.) Clip LED is flashing regularly  
8. TROUBLESHOOTING  
8.1 No Audio Output  
Amplifier is being overdriven. Turn down the input level  
control, or reduce the output level from the signal source.  
1.) Power LED not lit:  
2.) Clip LED is not flashing at all  
Unit may be in stand-by mode if connected to com-  
patible Marantz product's stand-by output control. Line fuse  
is blown or power outlet is dead.  
Amplifier input signal may be exceeding input headroom,  
which is greater than +12dBu, or 3.4V rms (measured us-  
ing continuous 1kHz sine wave). Incoming signal level  
higher than +12.8 dBu will cause distortion in the ampli-  
fier. Turning down the input level controls will not elimi-  
nate distortion if the input headroom is exceeded. Turn  
down the output level of the device driving the amplifier  
instead.  
IF LINE FUSE HAS FAILED, REPLACE ONLY  
WITH SAME TYPE AND RATING FUSE.  
2.) Power LED is lit but Protect LEDs stay on:  
Amp module is in protect mode. Speakers have  
been internally disconnected from amplifier output and con-  
nected to ground until the protect fault is corrected. Out-  
put overcurrent, overvoltage and undervoltage faults will  
reset in about eight seconds once the fault condition is  
removed, while excessive DC offset or high frequency faults  
take about 30 seconds to reset.  
Additionally, an input signal may already be distorted be-  
fore it gets to the amplifier. Check to see if a piece of  
equipment in the signal chain before the amp is clipping.  
For best performance, the amplifier should be operated  
with input levels fully CW. Also check for damaged speaker  
drivers that could cause distorted sound.  
Low Speaker Impedance: The amplifier may go  
into self-protect at high output levels if the actual speaker  
load impedance is much less than 4 ohms. To calculate  
speaker impedance for a given combination of direct-  
coupled speakers, use Ohm's law as applied to series and/  
or parallel resistor networks, where each speaker (for this  
purpose) can be thought of as a single resistor, using DC  
resistance measurements.  
8.3 Hum or Buzz Noise  
Be sure that the power cord’s 3-prong plug is connected to  
a properly earth-grounded outlet. Lifting the grounding third  
prong may not improve hum or buzz and can create a po-  
tential shock hazard.  
Simply stated, speakers connected in series will  
add together their impedance. Conversely, two speakers  
connected in parallel will result in half the impedance, three  
parallel speakers a third the impedance, four speakers a  
fourth, and so on, assuming the speaker impedances are  
all the same. Don't use mismatched impedances in paral-  
lel. When using paralleled speakers, the available ampli-  
Hum is usually caused by ground currents flowing between  
different pieces of equipment. Ground currents can be  
minimized by using a single point AC ground for the sound  
system, and by using balanced connections with quality  
cable throughout the audio path.  
Buzz, as well as certain audible high frequency tones, can  
be caused by environmental emissions such as lighting  
dimmers, neon lights, or computer equipment. Use bal-  
8
 
anced connections, and try moving the amplifier, wiring,  
lighting, or other equipment to different locations to isolate  
the source of the noise.  
9. SPECIFICATIONS  
*Power Output  
Connections  
Input: XLR - 1/4” (Pin 2: Hot, Tip: Hot), RCA  
Output: 5-Way Binding Post  
(Maximum Average Power, 0.1% THD, 1KHz)  
Rated Per Channel, Two Channels Driven  
MM9360  
250W RMS  
150W RMS  
MM9340  
400W RMS  
275W RMS  
Cooling: Forced Air, Thermal Sensitive Variable Speed Fan,  
Front Inlet/Rear Outlet  
4 ohm:  
8 ohm:  
Mono Bridged  
(1 Channel)  
8 ohm:  
Dimensions: 17 5/16” W x 5 3/4” H x 13 1/8” D  
500W RMS  
800W RMS  
Construction: 14 Gauge All-Steel Chassis, Aluminum Front  
Panel  
Rated Per Channel, All Channels Driven  
MM9360  
250W RMS†  
150W RMS  
MM9340  
400W RMS†  
275W RMS  
Weight:  
Shipping  
Net  
MM9360  
51lbs.  
45lbs.  
MM9340  
50lbs.  
44lbs.  
4 ohm:  
8 ohm:  
Mono Bridged  
8 ohm:  
500W RMS  
800Watts RMS  
Specification conditions: 120VAC 60Hz, 25°C  
Input Impedance: 20K ohm balanced, 10K ohm unbalanced,  
3.65K ohm RCA  
* Continuous power limited by power line capacity  
**THD ( Full Power 1KHz @ 8 ohms): < 0.06%  
**THD (20Hz-20KHz @ 8 ohms): < 0.2%  
**Non-conventional amplifiers require bandwidth limiting for  
all distortion and noise measurements.  
**IMD  
† Signal peaks in audio programming may trigger protection  
circuitry at low line voltages. Specifications are subject to  
change or improvement without notice.  
(SMPTE 60Hz/7KHz 4:1)  
@ 8 ohms: <0.2% (throughout power range)  
(IHF) @ 8 ohms: <0.1% (throughout power range)  
**Hum and Noise: -100dB from full output (A-weighted)  
Full Power Input Sensitivity:  
MM9360  
MM9340  
1.08V RMS (2.9dBu)  
1.47V RMS (5.6dBu)  
Frequency Response:  
8 ohm: ±0.5dB 20Hz-20kHz  
4 ohm: ±1.5dB 20Hz-20kHz  
Voltage Gain: 32X (30.1dB)  
Crosstalk: < -80dB (20Hz - 1KHz)  
Signal Present Signal Sensitivity: 13mV RMS (-35.5dBu)  
Power Requirement:  
110-125VAC 50/60Hz  
Typical Idle Current  
MM9360  
120V: 0.81A  
MM9340  
120V: 0.9A  
Current with Typical Audio Program Material (4 ohm load -  
all Channels)  
MM9360  
MM9340  
120V: 6.5A  
120V: 7.0A  
9
 
10  
 
11  
 
Marantz America, Inc.  
1100 Maplewood Drive  
Itasca, Illinois 60143  
phone: 630.741.0300 fax: 630.741.0301  
MM9X1-09/03  
Printed in USA  
 

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