MX-1 MX-2

Natural Sound Stereo Power Amplifier

CONTENTS

Safety Instructions. 2 Features.. 3 Connections.. 4 Control Parts and Their Functions.. 6 Troubleshooting. 7 Specifications.. 8

OWNERS MANUAL

SAFETY INSTRUCTIONS
6A A unit and cart combination should

CAUTION

RISK OF ELECTRIC SHOCK DO NOT OPEN
be moved with care. Quick stops, excessive force, and uneven surfaces may cause the unit and cart combination to overturn.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK), NO USER-SERVICEABLE PARTS INSIDE, REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
Wall or Ceiling Mounting The unit should be mounted to a wall or ceiling only as recommended by the manufacturer. Ventilation The unit should be situated so that its location or position does not interfere with its proper ventilation. For example, the unit should not be situated on a bed, sofa, rug, or similar surface, that may block the ventilation openings; or placed in a built-in installation, such as a bookcase or cabinet that may impede the flow of air through the ventilation openings. Heat The unit should be situated away from heat sources such as radiators, stoves, or other appliances that produce heat. supply only of the type described in the operating instructions or as marked on the unit.
Explanation of Graphical Symbols
The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert you to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert you to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.
10 Power Sources The unit should be connected to a power
11 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 receptacles, and the point where they exit from the unit.
12 Cleaning The unit should be cleaned only as
IMPORTANT! Please record the serial number of this unit in the space below. Model: Serial No.: The serial number is located on the rear of the unit. Retain this Owners Manual in a safe place for future reference.
recommended by the manufacturer.
13 Nonuse Periods The power cord of the unit should be
unplugged from the outlet when left unused for a long period of time.
14 Object and Liquid Entry Care should be taken so that
objects do not fall into and liquids are not spilled into the inside of the unit.
15 Damage Requiring Service The unit should be serviced
by qualified service personnel when:
WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE.
A. The power-supply cord or the plug has been damaged;
B. Objects have fallen, or liquid has been spilled into the

unit; or

C. The unit has been exposed to rain; or 5
Read Instructions All the safety and operating instructions should be read before the unit is operated. Retain Instructions The safety and operating instructions should be retained for future reference. Heed Warnings All warnings on the unit and in the operating instructions should be adhered to. Follow Instructions All operating and other instructions should be followed. Water and Moisture The unit should not be used near water for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc. Carts and Stands The unit should be used only with a cart or stand that is recommended by the manufacturer.

D. The unit does not appear to operate normally or
exhibits a marked change in performance; or
E. The unit has been dropped, or the cabinet damaged. 16 Servicing The user should not attempt to service the unit
beyond those means described in the operating instructions. All other servicing should be referred to qualified service personnel.
17 Power Lines An outdoor antenna should be located away

from power lines.

18 Grounding or Polarization Precautions should be taken
so that the grounding or polarization is not defeated.
19 Speaker Connection To reduce the risk of shock or
fire and prevent short circuits, strictly follow the instructions for connecting speakers on page 5.
Caution: Read this before operating your unit
To ensure the finest performance, please read this manual carefully. Keep it in a safe place for future reference. Install your unit in a cool, dry, clean place away from windows, heat sources, and too much vibration, dust, moisture or cold. Avoid sources of hum (transformers, motors). To prevent fire or electrical shock, do not expose to rain and water. Do not operate the unit upside-down. It may overheat, possibly causing damage. Never open the cabinet. If a foreign object drops into the set, contact your dealer. Do not place records or other objects on top of the unit; this will block the ventilation holes, cause the internal temperature to rise and may result in a failure.
Do not use force on switches, knobs or cords. When moving the set, first turn the unit off. Then gently disconnect the power plug and the cords connecting to other equipment. Never pull the cord itself. Do not attempt to clean the unit with chemical solvents; this might damage the finish. Use a clean, dry cloth. To prevent lightning damage, pull out the power cord and remove the antenna cable during an electrical storm. When not planning to use this unit for long periods of time (ie., vacation, etc.), disconnect the AC power plug from the wall outlet. common operating errors before concluding that your unit is faulty.
10 Be sure to read the Troubleshooting section on

We Want You Listening For A Lifetime
YAMAHA and the Electronic Industries Associations Consumer Electronics Group want you to get the most out of your equipment by playing it at a safe level. One that lets the sound come through loud and clear without annoying blaring or distortion and, most importantly, without affecting your sensitive hearing. Since hearing damage from loud sounds is often undetectable until it is too late, YAMAHA and the Electronic Industries Associations Consumer Electronics Group recommend you to avoid prolonged exposure from excessive volume levels.

FEATURES

<MX-1>: <MX-2>:
200W + 200W (8) RMS Output Power, 0.008% THD, 2020,000 Hz 150W + 150W (8) RMS Output Power, 0.008% THD, 2020,000 Hz Increased Low Impedance Drive Capability 2-Pair Speaker Drive Capability REMOTE CONTROL Connector to Make the Power of This Unit Controlled by the Pre-Amplifier CX-1 or CX-2 Gold-Plated Input Terminals

CONNECTIONS

Before attempting to make any connections to or from this unit, be sure to first switch OFF the power to this unit and to any other components to which connections are being made. When making connections between this unit and other components, be sure all connections are made correctly, that is to say L (left) to L, R (right) to R, + to + and to. Also, refer to the owners manual for each component to be connected to this unit.

<MX-1>

Speakers A Pre-amplifier etc. Right REMOTE CONTROL PRE OUT Left (U.S.A. model)
REMOTE CONTROL ( PRE AMP ) A OR B:2MIN. / SPEARKER A + B :4MIN. / SPEARKER A OR B:2MIN. / HAUT-PARLEUR A + B :4MIN. / HAUT-PARLEUR

To AC outlet Left

Speakers B

<MX-2>

Speakers A Pre-amplifier etc. Left (U.S.A. model)
Right REMOTE CONTROL PRE OUT

CONNECTING SPEAKERS

Connect the SPEAKERS terminals to your speakers with wire of the proper gauge, cut as short as possible. If the connections are faulty, no sound will be heard from the speakers. Make sure that the polarity of the speaker wires is correct, that is, + and markings are observed. If these wires are reversed, the sound will be unnatural and will lack bass. How to Connect: Red: positive (+) Black: negative ()
One or two speaker systems can be connected to this unit. If you connect only one speaker system, connect it to either the SPEAKERS A or B terminals. Use speakers with the specified impedance shown on the rear of this unit. Banana Plug connections are also possible (except for Scandinavian models). Simply insert the Banana Plug connector into the corresponding terminal. *When connecting Banana Plugs to this units SPEAKERS terminals, be sure to tighten the terminal knobs to make contact securely before connections.

Unscrew the knob. Insert the bare wire. Tighten the knob and

secure the wire.

Caution When inserting the stripped ends of the speaker wires as shown above, make sure at least 1/16 inch (1.6 mm) of insulation is inside the wire holders (i.e. no exposed wire is visible) and no loose conductor wire strands are protruding after connection. If wires touch each other or they touch the metal parts of this unit, this unit and/or speakers could be damaged. To prevent speaker wires from coming loose, make sure wire holders are firmly screwed in.
REMOTE CONTROL (PRE AMP) connector
If you have the YAMAHA pre-amplifier CX-1 or CX-2, connect this connector to the REMOTE CONTROL (POWER AMP) connector of the pre-amplifier by using the cable provided with the pre-amplifier. By this connection, the power of this unit is controlled by the pre-amplifiers POWER switch or the POWER key of the remote control transmitter provided with the preamplifier. After the connection is completed, keep the POWER switch of this unit pressed inward (to the ON position). Note If you will not connect the REMOTE CONTROL connectors of this unit and the pre-amplifier, do not connect the cable to either connector. Otherwise, this unit will not function normally.
REMOTE CONTROL ( PRE AMP )
CONTROL PARTS AND THEIR FUNCTIONS

FRONT PANEL

SPEAKERS

REAR PANEL

POWER switch/indicator (POWER)

SPEAKERS switches

Press this switch to switch ON the power. The indicator will illuminate while the power is ON. Press the switch again to switch OFF the power. Note the following cautions. q Before switching ON the power, be sure to set the volume control of the pre-amplifier to the lowest setting in order to avoid damage to the speakers. q The speaker-protection circuit functions to mute speaker sound reproduction for a few seconds after the power is switched ON.
Because one or two speaker systems can be connected to this unit, these switches allow you to select speaker system A or B, or both at once.
Input level controls (LEVEL)
These controls adjust the level of signals input to this unit. Normally set these controls to the 10 (maximum) position, and adjust the whole sound output level with the VOLUME control of the pre-amplifier. However, if your speakers permissible music input power is not high enough or sounds from the speakers are distorted, turn these controls counterclockwise to decrease the level.
STANDBY mode (For Europe model only) If the REMOTE CONTROL (PRE AMP) connector on the rear panel of this unit is connected to the corresponding connector of the pre-amplifier (CX-1 or CX-2), by turning the power off with the POWER switch of the pre-amplifier, this unit is switched to the STANDBY mode. (In this mode, the indicator over the POWER switch is half illuminated.)
Note To turn the power off completely, disconnect the AC power plug from the wall outlet.

TROUBLESHOOTING

If the unit fails to operate normally, check the following points to determine whether the fault can be corrected by the simple measures suggested. If it cannot be corrected, or if the fault is not listed in the SYMPTOM column, disconnect the power cord and contact your authorized YAMAHA dealer or service center for help. SYMPTOM The unit fails to turn on when the POWER switch is pressed. No sound. CAUSE Power cord is not plugged in or is not completely inserted. The SPEAKERS switches are released outward to the OFF position. The speaker level controls are set to the fully counterclockwise position. Connection cords are not connected securely to the INPUT terminals. Speaker systems are not properly connected to this unit. The sound suddenly goes off. No sound is heard from the left and/or right speaker systems. The protection circuit has activated because of short circuit etc. Speaker systems are not properly connected to this unit. The input level controls are set to the fully counterclockwise position. The acoustic image is unstable, characterized by unnatural sound and insufficient low-range tonal quality. Hum noise is heard from the speakers. The positive (+) and negative () polarities (of this unit and the speaker systems) are not matched. Connection cords are not connected securely to the INPUT terminals. REMEDY Firmly plug in the power cord. Press them inward to the ON position. Turn them clockwise. Connect them securely. Connect them correctly. Turning the unit off and then on will reset the protection circuit. Connect them correctly. Turn the input level controls clockwise. Reconnect the speaker systems to this unit so that the polarities are aligned.

Connect them securely.

SPECIFICATIONS
Minimum RMS Output Power per Channel <MX-1> 8 ohms, 20 Hz to 20 kHz, 0.008% THD.200W+200W 4 ohms, 20 Hz to 20 kHz, 0.03% THD.260W+260W 2 ohms, 20 Hz to 20 kHz, 0.09% THD.320W+320W <MX-2> 8 ohms, 20 Hz to 20 kHz, 0.008% THD.150W+150W 4 ohms, 20 Hz to 20 kHz, 0.03% THD.190W+190W 2 ohms, 20 Hz to 20 kHz, 0.09% THD.230W+230W Dynamic Power per Channel (by IHF Dynamic Headroom measuring method) <MX-1> 8/4/2 ohms...280/460/630W <MX-2> 8/4/2 ohms...190/310/410W DIN Standard Output Power per Channel (4 ohms, 1 kHz, 0.5% THD) [Europe model only] <MX-1>...300W <MX-2>...210W Dynamic Headroom <MX-1> 8/4/2 ohms..1.46/2.48/2.94 dB <MX-2> 8/4/2 ohms..1.03/2.12/2.51 dB IEC Power (8 ohms, 1 kHz, 0.01% THD) [Europe model only] <MX-1>...225W <MX-2>...175W Power Band Width <MX-1> 8 ohms, 100W, 0.03% THD..10 Hz to 60 kHz <MX-2> 8 ohms, 75W, 0.03% THD..10 Hz to 60 kHz Damping Factor 8 ohms, 1 kHz..250 or more 8 ohms, 20 Hz20 kHz (When using the SPEAKERS A terminals).350 or more Input Sensitivity/Impedance MAIN IN <MX-1>..1.46V/20 k-ohms <MX-2>..1.26V/20 k-ohms Frequency Response (20 Hz to 20 kHz) MAIN IN...00.5 dB Signal-to-Noise Ratio (IHF-A Network) MAIN IN (Input Shorted) <MX-1>.. 125 dB <MX-2>.. 123 dB Residual Noise (IHF-A Network)..20 V Channel Separation (Vol. 30 dB) MAIN IN (Input 5.1 k-ohms Terminated 1 kHz/10 kHz)...80 dB/60 dB Power Supply [U.S.A. and Canada models]..AC 120V, 60 Hz [Australia and U.K. models]..AC 240V, 50 Hz [Europe model]..AC 230V, 50 Hz [General model]..AC 110/120/220/240V, 50/60 Hz Power Consumption <MX-1> [U.S.A. and Canada models].560 VA, 420W [Australia, U.K. and General models]..440W [Europe model]...550W <MX-2> [U.S.A. and Canada models].440 VA, 340W [Australia, U.K., Europe and General models].360W Maximum Power Consumption (10% THD) [General model only] <MX-1>...1950W <MX-2>...1600W Dimensions (W x H x D)..486 x 116 x 438 mm (19-1/8 x 4-9/16 x 17-1/14) Weight <MX-1>..24.0 kg (52 lbs. 13 oz.) <MX-2>..19.5 kg (42 lbs. 14 oz.)

Specifications subject to change without notice.
YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA
ELECTRONICS CORPORATION, USA 6660 ORANGETHORPE AVE., BUENA PARK, CALIF. 90620, U.S.A. CANADA MUSIC LTD. 135 MILNER AVE., SCARBOROUGH, ONTARIO M1S 3R1, CANADA ELECTRONIK EUROPA G.m.b.H. SIEMENSSTR. 22-34, D-2084 RELLINGEN BEI HAMBURG, F.R. OF GERMANY ELECTRONIQUE FRANCE S.A. 17 RUE DES CAMPANULES, LOGNES 77321 MARNE LA VALLEE CEDEX 2, FRANCE ELECTRONICS (UK) LTD. YAMAHA HOUSE, 200 RICKMANSWORTH ROAD WATFORD, HERTS WD1 7JS, ENGLAND SCANDINAVIA A.B. J A WETTERGRENS GATA 1, BOX 30053, VSTRA FRLUNDA, SWEDEN MUSIC AUSTRALIA PTY, LTD. 17-33 MARKET ST., SOUTH MELBOURNE, 3205 VIC., AUSTRALIA

VQ13100-0 BWWO,O

Printed in Japan