Onkyo M-5000R User Manual

Power Amplifier

M-5000R

Instruction Manual

Introduction

WARNING:

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.

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.

Important Safety Instructions

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with dry cloth.

7. Do not block any ventilation openings. Install in

accordance with the manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.

11. Only use attachments/accessories specified by the manufacturer.

WARNING

RISK OF ELECTRIC SHOCK

DO NOT OPEN

The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s 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 the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

12. Use only with the cart, stand,

PORTABLE CART WARNING

tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.

S3125A

13. Unplug this apparatus during lightning storms or when unused for long periods of time.

14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

15. Damage Requiring Service Unplug the apparatus from the wall outlet and refer servicing to qualified service personnel under the following conditions:

A. When the power-supply cord or plug is damaged, B. If liquid has been spilled, or objects have fallen

into the apparatus,

C. If the apparatus has been exposed to rain or water, D. If the apparatus does not operate normally by

following the operating instructions. Adjust only those controls that are covered by the operating instructions as an improper adjustment of other controls may result in damage and will often

AVIS

RISQUE DE CHOC ELECTRIQUE

NE PAS

OUVRIR

require extensive work by a qualified technician to restore the apparatus to its normal operation,

E. If the apparatus has been dropped or damaged in

any way, and

F. When the apparatus exhibits a distinct change in

performance this indicates a need for service.

16. Object and Liquid Entry Never push objects of any kind into the apparatus through openings as they may touch dangerous voltage points or short-out parts that could result in a fire or electric shock. The apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such as vases shall be placed on the apparatus. Don’t put candles or other burning objects on top of this unit.

17. Batteries Always consider the environmental issues and follow local regulations when disposing of batteries.

18. If you install the apparatus in a built-in installation, such as a bookcase or rack, ensure that there is adequate ventilation. Leave 30 cm (12") of free space at the top and sides and 10 cm (4") at the rear. The rear edge of the shelf or board above the apparatus shall be set 10 cm (4") away from the rear panel or wall, creating a flue-like gap for warm air to escape.

Precautions

1. Recording Copyright—Unless it’s for personal use only, recording copyrighted material is illegal without the permission of the copyright holder.

2. AC Fuse—The AC fuse inside the unit is not userserviceable. If you cannot turn on the unit, contact your Onkyo dealer.

3. Care—Occasionally you should dust the unit all over with a soft cloth. For stubborn stains, use a soft cloth dampened with a weak solution of mild detergent and water. Dry the unit immediately afterwards with a clean cloth. Don’t use abrasive cloths, thinners, alcohol, or other chemical solvents, because they may damage the finish or remove the panel lettering.

4. Power WARNING

BEFORE PLUGGING IN THE UNIT FOR THE FIRST TIME, READ THE FOLLOWING SECTION CAREFULLY. AC outlet voltages vary from country to country. Make sure that the voltage in your area meets the voltage requirements printed on the unit’s rear panel (e.g., AC 230 V, 50 Hz or AC 120 V, 60 Hz).

The power cord plug is used to disconnect this unit from the AC power source. Make sure that the plug is readily operable (easily accessible) at all times.

Pressing the [POWER] button to select OFF mode does not fully disconnect from the mains. If you do not intend to use the unit for an extended period, remove the power cord from the AC outlet.

5. Preventing Hearing Loss Caution

Excessive sound pressure from earphones and headphones can cause hearing loss.

6. Batteries and Heat Exposure Warning

Batteries (battery pack or batteries installed) shall not be exposed to excessive heat as sunshine, fire or the like.

7. Never Touch this Unit with Wet Hands—Never handle this unit or its power cord while your hands are wet or damp. If water or any other liquid gets inside this unit, have it checked by your Onkyo dealer.

8. Handling Notes

• If you need to transport this unit, use the original packaging to pack it how it was when you originally bought it.

• Do not leave rubber or plastic items on this unit for a long time, because they may leave marks on the case.

• This unit’s top and rear panels may get warm after prolonged use. This is normal.

• If you do not use this unit for a long time, it may not work properly the next time you turn it on, so be sure to use it occasionally.

For U.S. models

FCC Information for User

CAUTION:

The user changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

NOTE:

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

For Canadian Models

NOTE:

THIS CLASS B DIGITAL APPARATUS COMPLIES WITH CANADIAN ICES-003. For models having a power cord with a polarized plug:

CAUTION:

TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT.

Modèle pour les Canadien

REMARQUE:

CET APPAREIL NUMÉRIQUE DE LA CLASSE B EST CONFORME À LA NORME NMB-003 DU CANADA.

Sur les modèles dont la fiche est polarisée:

ATTENTION:

POUR ÉVITER LES CHOCS ÉLECTRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU’AU FOND.

For British models

Replacement and mounting of an AC plug on the power supply cord of this unit should be performed only by qualified service personnel.

IMPORTANT

The wires in the mains lead are coloured in accordance with the following code:

Blue: Neutral

Brown: Live

As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows:

The wire which is coloured blue must be connected to the terminal which is marked with the letter N or coloured black.

The wire which is coloured brown must be connected to the terminal which is marked with the letter L or coloured red.

IMPORTANT

The plug is fitted with an appropriate fuse. If the fuse needs to be replaced, the replacement fuse must approved by ASTA or BSI to BS1362 and have the same ampere rating as that indicated on the plug. Check for the ASTA mark or the BSI mark on the body of the fuse.

If the power cord’s plug is not suitable for your socket outlets, cut it off and fit a suitable plug. Fit a suitable fuse in the plug.

For European Models

Declaration of Conformity

We,

ONKYO EUROPE ELECTRONICS GmbH LIEGNITZERSTRASSE 6, 82194 GROEBENZELL, GERMANY

declare in own responsibility, that the ONKYO product described in this instruction manual is in compliance with the corresponding technical standards such as EN60065, EN55013, EN55020 and EN61000-3-2, -3-3.

GROEBENZELL, GERMANY

K. MIYAGI

ONKYO EUROPE ELECTRONICS GmbH

Amplifier Precautions

Before using the power amplifier M-5000R, be sure to read the page above entitled Important Safety Instructions and this page of Amplifier Precautions.

Ventilation

While using the M-5000R, the internal temperature will fairly rise. Excessive temperature rise may affect the amplifier performance. To prevent damage from occurring due to high internal temperatures, it is vital to have proper ventilation and passage of air to carry out the heat and keep the internal temperature within acceptable ranges.

Caution

• Do not place the M-5000R inside cabinets or closets where there is poor passage of air and ventilation.

• Do not place the M-5000R near external heat sources such as heaters or hot air ducts.

• Do not place other components or object on top of or under the M-5000R.

• The cover of the M-5000R contains ventilation holes to allow the passage of air. Do not cover or block these holes in any way.

If you are planning to place it within a cabinet, either open holes in the rear panel of the cabinet to improve ventilation or use a fan to force air circulation.

As a general rule, if during idling the cover is too hot to touch, then ventilation needs to be improved.

Installation location and space

Make sure that the floor or cabinet or rack where it will be located is strong enough to support its weight. You will also need to leave enough space behind the M-5000R to allow room for the power cord and other cables for connecting system components. A minimum of 10 cm (4") is required behind the M-5000R to allow room for the cables and cords without excessively bending them. Do not place the M-5000R near TV or radio. This may cause noise or instable video on radio or TV respectively.

Power cord

Do not use a power cord other than the one supplied with the M-5000R. The power cord supplied is designed for use with the M-5000R and should not be used with any other device. Be sure to only use wall sockets that properly fit the plug of the power cord. If the socket does not match the plug of the power cord, you will need to prepare an adapter. Always use an adapter that is properly certified for this application.

Speakers

Connected speakers should have an impedance of 4 ohms or greater. If speakers with an impedance of less than 4 ohms are connected to RCA jacks, it may damage the M-5000R. If a speaker with an impedance of less than 6 ohms are connected to an XLR jack, it may damage the M-5000R. Read the instructions supplied with your speakers. Pay close attention to speaker wiring polarity. In other words, connect positive (+) terminals only to positive (+) terminals, and negative (–) terminals only to negative (–) terminals. If you get them the wrong way around, the sound will be out of phase and will sound unnatural. Unnecessarily long, or very thin speaker cables may affect the sound quality and should be avoided. Be careful not to short the positive and negative wires. Doing so may damage the amplifier. Make sure the metal core of the wire does not have contact with the power amplifier’s rear panel. Doing so may damage the power amplifier. Don’t connect more than one cable to each speaker terminal. Doing so may damage the power amplifier. Don’t connect one speaker to several terminals.

(North American models)

If you are using banana plugs, tighten the speaker terminal before inserting the banana plug.

Do not insert the speaker code directly into the center hole of the speaker terminal.

Care

Power

From time to time you should wipe the front and rear panels and the cabinet with a soft cloth. For heavier dirt, dampen a soft cloth in a weak solution of mild detergent and water, wring it out dry, and wipe off the dirt. Following this, dry immediately with a clean cloth. Do not use rough material, thinners, alcohol or other Chemical solvents or cloths since these could damage the finish or remove the panel lettering. Whenever performing maintenance on the M-5000R, any of its supplied accessories, or any device connected to it, do not use solvents or cleaners of any kind that are inflammable or combustible. When you clean the input/output terminals on the rear panel, do not use contact restorer. Doing so may cause resin deterioration. By factory default, the meters are treated with antistatic coating. Do not strongly wipe the surface with a cloth to avoid static electricity from building up, as this may cause an oscillation of the needle.

Other

Below is a list of actions that you should never perform.

• Do not use the M-5000R as a broadcast system or musical instrument amplifier.

• Never use a generator, DC/AC converter, AC/AC converter, or transformer to supply power for the M-5000R.

• Never perform a “thumb test” (checking whether current is reaching the lead wire on the hot end of the input by touching it with your fingers) on the ends of the input jacks or input cables. Doing so may damage the speakers.

• Do not short across the output terminals or across the output terminals and rear panel.

• Never remove the cover of the M-5000R.

• Do not install the M-5000R in a location within the reach of small children.

WARNING:

Lightning storms

During lightning storm, never touch the power cord, plug or cover of the M-5000R, and any devices connected to the M-5000R.

Features

• 150 W/Ch (4 ohm, 20 Hz - 20 kHz, 0.05%, 2 Channels Driven, IEC)

• A WRAT (Advanced Wide Range Amplifier Technology)

• DIDRC (Dynamic Intermodulation Distortion Reduction Circuitry)

• Quad Push-Pull Amplification Design with Three-Stage Inverted Darlington Circuitry

• Symmetrical Layout of L/R Channels

• Two Massive Toroidal Transformers with Sub Transformer

• Four Large 27,000 µF Capacitors

• Separate Anti-Vibration Aluminum Panels for Top, Front, and Sides

• Side-mounted Circuit Board Construction to Reduce Vibration

• Bi-Amping and BTL (MONO) Capability

• XLR Input for Monaural Amplification with BTL Mode

• Gold-Plated, Machined Solid Brass RCA Inputs

• Gold-Plated Large Speaker Posts

• 12 V Trigger Input and Output

• Extra-Large Fast-Response Peak Watt Meters

Technology

A WRAT (Advanced Wide Range Amplifier Tec hno lo gy )

The M-5000R employs a host of proprietary Onkyo technologies to ensure optimal audio performance.

1. DIDRC (Dynamic Intermodulation Distortion Reduction Circuitry)

Since the advent of digital audio, the values of S/N (signal-to-noise) ratio have risen significantly. However, it is also recognized that in terms of perceived S/N, analog audio sources are not inferior to digital sources. Generally, S/N measures the ratio when sound is and not produced, but takes no account of the noise generated during sound reproduction. For a long time, Onkyo has focused and made extensive research on the S/N when sound is produced (dynamic S/N). Using a mechanism that captures the noise beyond audible range, it has been possible to determine that both dynamic S/N and perceived S/N aggravate during music reproduction. Although frequencies above 20 kHz are beyond human hearing, it is well known that a beat can be perceived if different signals are overlapped at such frequencies.

During the analog audio era, no significant signals were entering beyond the audible range. However, the digital era has made recording beyond the audible range possible and the generated beat is now perceivable.

With Onkyo's DIDRC technology, a new approach is introduced which prevents such beat from penetrating the audible range.

2. Low Negative-Feedback Design

Conventional amplifiers make extensive use of negative feedback (NFB), whereby part of the output signal is re-input in order to improve the S/N ratio across a wide frequency range. However, too much NFB makes a system susceptible to counter-electromotive force from the speakers, resulting in a drop in perceived sound quality. To avoid this, Onkyo focuses on improving the frequency response and reducing distortion, without relying so much on NFB. We use a low negative-feedback design incorporating audiophile-grade, close-tolerance components, to achieve a frequency response, out to 100 kHz.

3. Closed Ground-Loop Circuits

If an amplifier’s ground potential (voltage) fluctuates during playback, noise is likely to result. In an open-loop circuit design, where all circuits (ire connected to the power supply via a single loop (as on many amplifiers), the noise is compounded. To avoid this, the M-5000R employs a sophisticated closed-circuit design in which each circuit has a separate link to the power supply. This helps to cancel individual circuit noise and keep the ground potential free of distortion.

4. HICC (High Instantaneous-Current Capability)

When an amplifier outputs an audio signal, the connected speakers accumulate energy, reflex, and send energy back to the amplifier. The amplifier must then immediately cancel the speakers’ reflex energy and instantaneously send out the next signal. The same high current required to achieve this is also necessary to

handle speaker impedance, fluctuations, which can force an amplifier to provide four to six times its usual current load. The M-5000R’s instantaneous current capability ensures that audio output is not affected by power limitations.

Quad Push-Pull Amplification Design with Three-Stage Inverted Darlington Circuitry

Three-Stage Inverted Darlington Circuitry brings greater efficiency to the M-5000R power amp by employing a low-NFB design to maintain voltage stability and enhance transient response. Extremely sensitive to oscillations, this circuitry requires very advanced control technology in order to be incorporated into the amplifier. Breaking further new ground, the M-5000R employs two extra transistors for each channel in a “quad push-pull” design that significantly enhances amplification power.

Symmetrical Twin-Monaural Construction

Power devices for the left and right channels of the M-5000R are aligned symmetrically. Each channel has the same electrical and structural design, and signal pathways are uniform in length. This helps to minimize errors in stereophonic playback.

Side-mounted Circuit Board Construction

Rather than being directly connected to the chassis base, the circuit boards inside the M-5000R are cushioned by internal struts and affixed to the front, side, and rear panels. This method of construction prevents vibrations from the chassis from adversely affecting the circuit boards.

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