Integra ADM-20.4 Owner's Manual

Instruction Manual

Power Amplifier

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.

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.

WARNING

RISK OF ELECTRIC SHOCK

DO NOT OPEN

RISQUE DE CHOC ELECTRIQUE

NE PAS OUVRIR

AVIS

PORTABLE CART WARNING

S3125A

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.

12. Use only with the cart, stand, 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.

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 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 20 cm (8") of free space at the top and sides and 10 cm (4") at the rear. When a shelf is located above the unit, the rear edge of the shelf shall be set 10 cm (4") away from the backboard to improve ventilation.)

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 the dealer from whom you purchased this unit.

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.

For models with [POWER] button, or with both [POWER] and [8ON/STANDBY] buttons:

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.

For models with [8ON/STANDBY] button only: Pressing the [8ON/STANDBY] button to select

Standby 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 the dealer from whom you purchased this unit.

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 NMB003 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.

Supplied Accessories

Approx. 8 in.

(20 cm)

Ensure proper ventilation.

Approx. 8 in.

(20 cm)

Approx.8in.(20cm)

Approx. 4 in.

(10 cm)

Power cord

Power cord (5.9 ft/1.8 m) . . . . . . . . . . . . . . . . . . . . . . . (1)

(Plug type varies from country to country.)

In catalogs and on packaging, the letter at the end of the product name indicates the color. Specifications and operations are the same regardless of color.

Features

ADM-20.4 Power Amplifier

• 75 W/ch (1kHz, 8 ohms, 0.08% THD, 2ch Driven FTC)

• WRAT (Wide Range Amplifier Technology)

• High Current Low Impedance Drive

• 10,000 µF Capacitor x 2

• Three Stage Inverted Darlington Circuitry

• Copper Bus Plate for Low Impedance Drive

• 1/16"(16mm) Full-flat Chassis

• Aluminum Front Panels

• 12V Trigger in/out

• Impedance Switch (4 ~ 8 ohms and 8 ~ 16 ohms)

• Auto Power-on Function by Receiving Audio Signal

• Auto Standby Function

• OUTPUT (RCA, Through Out)

• Compatible with IRK-120-3A

Installing the Power Amplifier

Install the power amplifier on a sturdy rack or shelf. Position it so that its weight is evenly dispersed on its four legs. Do not install the power amplifier in a place with vibration or an unstable location.

The power amplifier is designed to have high conversion efficiency, however, its temperature will become much higher than other audio equipment. Therefore, make sure not to hamper heat dissipation by ensuring proper ventilation.

Contents

Introduction

Important Safety Instructions ......................................... 2

Precautions ...................................................................... 3

Supplied Accessories...................................................... 4

Features ............................................................................ 4

Installing the Power Amplifier......................................... 4

Getting to Know the Power Amplifier............................. 5

Front Panel..................................................................... 5

Rear Panel ..................................................................... 6

Connections

Connections ..................................................................... 7

Cable and Jacks............................................................. 7

Connecting the AV Receiver .......................................... 7

Connecting Your Speakers ............................................ 8

Connecting the Power Cord ........................................... 8

Advanced Operations

Custom Setup................................................................... 9

Setting the TRIGGER..................................................... 9

Setting the Auto Standby Function................................. 9

Setting the Speaker Impedance..................................... 9

Others

Operations ...................................................................... 10

Troubleshooting............................................................. 10

Specifications................................................................. 11

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