Power Amplifier Owner´s Manual
Thank you and congratulations on your purchase of this Yamaha product. ¡¡ You can enjoy the high-quality stereo sound of this power amplifier at home. ¡¡ This Owner’s Manual describes the unit’s features and connection procedures. ¡¡ To use the product properly and safely, we suggest that you read this manual and Safety Brochure (separate booklet) thoroughly. Keep the manual in a safe, accessible place for future reference. You can download a PDF version of this manual from the following Yamaha website.
Table of contents Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Supplied accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supplied accessories Please make sure that the following accessories are included in the package. • • • • Power cord System cable Owner’s Manual (this book) Safety Brochure (separate booklet) WARNING Do not use the supplied power cord for other devices. Maintenance To use this product for an extended period of time, we recommend that you maintain it regularly. WARNING • Check the power cord regularly to see if it is dusty. If so, wipe off the dust completely.
Part Names and Functions This section describes the names and functions of the parts on the front and rear panel.
Front panel NATURAL SOUND P O W E R AMPLIFIER SPEAKERS OFF A B A+ B BI WIRING A. STANDBY/ON/OFF (Power) switch/indicator Turns the power to the unit on or off. STANDBY/ON: Turns the power to the unit on. OFF: Turns the power to the unit off.
METER OFF PEAK INPUT VU LINE BAL DIMMER NOTICE Make sure that the impedance of each speaker is appropriate for the system configuration. For more information, refer to “Basic speaker connections” (page 14), “Bi-wiring connections” (page 18), “Biamp connections” (page 20), and “Bridge connections” (page 22). C. Meter display (LEFT/RIGHT) Indicates the audio output level of the left and right channels. D. METER selector PEAK: Switches the meter display type to a peak level meter.
Rear panel B Note D. PHASE selector For information regarding the connection procedure, refer to “Connections” (page 11). Use the included speaker cables to connect speakers to the terminals. For information regarding the connection procedure, refer to “Connections” (page 11). Sets the position (polarity) of the HOT pin at the BAL input jacks according to the connected preamplifier. For more information, refer to “Balanced and unbalanced connections” (page 10).
B F. MODE selector Switches the speaker output between stereo and monaural. For more information, refer to “Basic speaker connections” (page 14), “Bi-wiring connections” (page 18), “Bi-amp connections” (page 20), and “Bridge connections” (page 22). NORMAL: The unit is used as a stereo amplifier. This is the standard setting. DUAL MONO/BRIDGE: The unit is used as a monaural amplifier. Select this setting for bi-amp or bridge connections. G.
Balanced and unbalanced connections If the PHASE selector is set to NORMAL, pin #2 becomes HOT. Lever This unit features balanced input jacks (BAL) and unbalanced input jacks (LINE). NOTICE Do not use balanced and unbalanced connections between two components simultaneously. Doing so would create a ground loop that could generate static and noise. 2: hot 1: ground (earth) 3: cold Balanced connection A balanced connection is a great advantage against external noise.
Connections This section explains how to connect the unit to a preamplifier and speakers. CAUTION Turn off the power to all components before making any connections. NOTICE Before you connect external components, read and follow the instruction manuals for those components. Otherwise, this unit or external components might malfunction.
Connecting a preamplifier Connect your preamplifier to the unit’s input jacks. For this connection, use XLR-type balanced cables or RCA-type unbalanced cables. Balanced connection M-5000 Front panel XLR-type balanced cable INPUT BAL LINE B B Preamplifier BAL R Unbalanced connection M-5000 Front panel RCA-type pin cable INPUT LINE BAL B B Preamplifier LINE 1 R NOTICE The unit’s volume level is fixed.
Trigger connections You can control the unit’s power on and off in sync with a connected Yamaha component, such as a preamplifier or AV receiver. Use the supplied system cable to make connections as shown in the following diagram. Example (one M-5000 unit is used) M-5000 Preamplifier, etc. B B System cable Example (two M-5000 units are used) M-5000 M-5000 B B B B System cable System cable Preamplifier, etc.
Basic speaker connections R channel Preamplifier R channel L channel R channel signal L channel signal R channel High Low B Shorting bar MODE selector MODE: NORMAL 1 Turn off the power to the unit and all connected components. 2 Set the MODE selector on the rear panel to NORMAL. 3 Set the SPEAKERS selector on the front panel to A, B, or A+B BI-WIRING. 14 Speaker impedance SPEAKERS selector The diagram shows the selector set to A.
L channel M-5000 L channel High B Low Shorting bar SPEAKERS selector (front panel) SPEAKERS OFF A B A+ B BI WIRING Note – – R + • Do not let the bare speaker wires touch each other, nor let them touch any metal part of this unit. Otherwise, the unit and/or the speakers might be damaged. • Do not connect an active subwoofer to this unit. Connect the subwoofer to the preamplifier.
Connecting speaker cables Using standard speaker cables 1 Remove approximately 10 mm (0.4 in) of insulation from the end of each speaker cable, and twist the exposed wires together tightly to prevent short circuits. 10 mm (0.4 in) 2 Unscrew the knob on each SPEAKERS terminal, and then insert the bare wire into the side hole on the terminal. 16 Tighten the knob. NOTICE If the SPEAKERS terminals come into contact with a metallic rack, a short circuit might occur, resulting in damage to this unit.
Using banana plug cables First, tighten the knob, and then insert the banana plug into the head of the knob. Using Y-shaped lug cables 1 Unscrew the knob, and then sandwich the Y-shaped lug between the ring part and base of the terminal. Y-shaped lug Slide Diameter of the banana plug hole: 5.5 mm (0.22 in) Thickness of the terminal core: 5.0 mm (0.20 in) 2 Tighten the knob.
Bi-wiring connections R channel Preamplifier R channel L channel R channel signal L channel signal R channel High Low B Remove the shorting bar. MODE selector MODE: NORMAL To bi-wire your speakers, separate cables are used to connect the mid/high-frequency speaker driver (tweeter) and the low-frequency driver (woofer) on each biwireable speaker to the amplifier.
L channel M-5000 L channel High B Low Remove the shorting bar. SPEAKERS selector (front panel) SPEAKERS OFF A B A+ B BI WIRING MAL 3 Connect the power amplifier to the speakers. For each channel speaker, connect the cables from the speaker’s mid/high range terminals to the amplifier’s SPEAKERS A jacks of the corresponding channel, and from the speaker’s low range terminals to the amplifier’s SPEAKERS B jacks of the corresponding channel respectively.
Bi-amp connections Preamplifier R channel R channel R channel signal L channel L channel signal M-5000 R channel High Low B B B Remove the shorting bar. MODE selector SPEAKERS selector (front panel) SPEAKERS OFF A B A+ B BI WIRING MODE: DUAL MONO/BRIDGE To configure a bi-amp stereo system, you need two M-5000 units. The M-5000 features two built-in amplifiers.
L channel M-5000 M-5000 L channel High B Low B B Remove the shorting bar. MODE selector S SPEAKERS selector (front panel) SPEAKERS OFF B A B A+ B BI WIRING A+ B BI WIRING MODE: DUAL MONO/BRIDGE 3 Set the MODE selector on the rear panel to DUAL MONO/BRIDGE. 4 Set the SPEAKERS selector on the front panel to A, B, or A+B BI-WIRING. The diagram shows the selector set to A. 5 Connect the power amplifier (this unit) to the speakers.
Bridge connections R channel Preamplifier R channel R channel signal L channel L channel signal M-5000 R channel High Low B B B Shorting bar MODE selector SPEAKERS selector (front panel) SPEAKERS OFF A B A+ B BI WIRING MODE: DUAL MONO/BRIDGE In a bridge connection configuration, the M-5000 is used as a monaural amplifier. To create a stereo system, you need two M-5000 units. On each amplifier, connect the “+” terminal of the SPEAKERS L CH to the “−” terminal of the SPEAKERS R CH.
L channel M-5000 M-5000 L channel High B Low B B Shorting bar MODE selector S SPEAKERS selector (front panel) SPEAKERS OFF B A B A+ B BI WIRING A+ B BI WIRING MODE: DUAL MONO/BRIDGE 3 Set the SPEAKERS selector on the front panel to A, B, or A+B BI-WIRING. The diagram shows the selector set to A. 4 5 CAUTION Be sure to use speakers that feature the impedance shown in the table below.
Connecting the power cord After all connections are complete, make sure that the STANDBY/ON/OFF (Power) switch is turned off, then plug the power cord into the AC IN connector of the unit, and then plug the power cord into the AC outlet. AC IN Supplied power cord M-5000 Rear panel CAUTION • Do not use an AC outlet that is so loose that the plug does not stay firmly in place. Otherwise, fire, electric shock, or burning might be caused.
Reference Materials 25
General specifications Rated output power (20 Hz to 20 kHz, 0.07% THD) 2-channel driven, 8Ω. . . . . . . . . . . . . 100 W + 100 W 2-channel driven, 4Ω. . . . . . . . . . . . . 200 W + 200 W Driven in monaural, 8Ω. . . . . . . . . . . . . . . . . . . 400 W Dynamic power 8Ω. . . . . . . . . . . . . . . . . . . . . . . . . . . 6Ω. . . . . . . . . . . . . . . . . . . . . . . . . . . 4Ω. . . . . . . . . . . .
CPU/LOGIC STANDBY POWER LINE R BAL R LINE L (DUAL MONO) (BRIDGE) BAL L (DUAL MONO) (BRIDGE) INPUT BAL LINE SUB TRANSFORMER PHASE NORMAL INVERTED POWER SUPPLY FOR CONTROL CONSTANT CURRENT POWER SUPPLY FOR AUDIO UNBAL BALANCE CONVERTER TOROIDAL TRANSFORMER MODE NORMAL DUAL MONO/BRIDGE R CH - L CH - METER − R CH + SPEAKERS − L CH + SPEAKERS FLOATING BALANCE AMPLIFIER UNBALANCE DRIVER R +/- PEAK/VU BALANCE LOG AMP METER CIRCUIT L +/- POWER AMP PRE STAGE R CH + L CH + FLOATING IN
Audio characteristics Total harmonic distortion (8Ω) 1 0.5 0.3 0.2 THD + N Ratio (%) 0.1 0.05 20 kHz 0.03 0.02 1 kHz 0.01 0.005 20 Hz 0.003 0.002 0.001 1 2 3 4 5 6 8 10 20 30 40 50 60 80 100 200 Output (W) Total harmonic distortion (4Ω) 1 0.5 0.3 0.2 THD + N Ratio (%) 0.1 20 kHz 0.05 0.03 0.02 1 kHz 0.01 20 Hz 0.005 0.003 0.002 0.
Total harmonic distortion (monaural 8Ω) 1 0.5 0.3 0.2 THD + N Ratio (%) 0.1 20 kHz 0.05 0.03 20 Hz 0.02 0.01 1 kHz 0.005 0.003 0.002 0.
Troubleshooting Refer to the table below if this unit does not function properly. If the instructions below do not help, or if the problem you are experiencing is not listed below, turn off the unit, disconnect the power cord, and contact the nearest authorized Yamaha dealer or service center. Problem Power does not turn on. The STANDBY/ON indicator on the front panel flashes. The unit is turned on but no sound is heard.
Remedy See page The protection circuitry has been activated because of a short circuit, etc. Make sure that the speaker wires are not touching each other or shorting out against the rear panel of the unit, and then turn on the power to the unit. 16 The speakers are not connected properly. Make sure that the speakers are connected properly. If the problem persists, the cables might be defective. 16 There is a lack of bass and no ambience.
Index A U AUTO POWER STANDBY switch . . . . . . . . . . . . . 9 B Unbalanced connection . . . . . . . . . . . . . . . . . . . . . 10 Y Balanced connection . . . . . . . . . . . . . . . . . . . . . . . . Balanced input jack . . . . . . . . . . . . . . . . . . . . . . . . BAL input jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . Banana plug cable . . . . . . . . . . . . . . . . . . . . . . . . . . Bi-amp connection . . . . . . . . . . . . . . . . . . . . . . . . .
Yamaha Global Site https://www.yamaha.com/ Yamaha Downloads https://download.yamaha.
