Inter-M R500PLUS User Manual

R150 PLUS/300 PLUS/500 PLUS Reference Amplifier

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PROTCLIPSIG

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REFERENCE AMPLIFIER

PROTCLIPSIG

POWER

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POWER

ON

OFF

* Rack mount products in the Western Hemisphere(North America, South America,

and the Caribbean) do not have handles installed due to customer preference.

Contents

Contents

Welcome

Warning.........................................................................................................................................1

Unpacking......................................................................................................................................2

Short Form Instructions.....................................................................................................................2

Installation

Environment....................................................................................................................................3

Important Safety Instructions.............................................................................................................3

Description.......................................................................................................................................4

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

Accessories.....................................................................................................................................4

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

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

Mounting in a Rack........................................................................................................................7

Applications

Stereo Installation............................................................................................................................8

Bridge Mono Installation ..................................................................................................................9

Linked Installation..........................................................................................................................10

Connections...................................................................................................................................11

Block Diagram ..............................................................................................................................13

Specifications ................................................................................................................................14

Service

Procedures....................................................................................................................................15

Schematic.....................................................................................................................................15

Parts List .......................................................................................................................................15

Variations and Options ...............................................................................................................15

Warranty .......................................................................................................................................15

REFERENCE AMPLIFIER

Welcome

Welcome

A personal welcome to you from the management and employees of Inter-M

All of the co-workers here at Inter-M are dedicated to providing excellent products with inherently good value,
and we are delighted you have purchased one of our products.

We sincerely trust this product will provide years of satisfactory service, but if anything is not to your
complete satisfaction, we will endeavor to make things right.

Welcome to Inter-M, and thank you for becoming part of our worldwide extended family!

This symbol is intended to alert the user to the

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

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.

Caution: To prevent electric shock do not use this (polarized) plug with

Attentions: Pour prévenir les chocs électriques ne pas utiliser cette

WARNING

To prevent fire or shock hazard, do not
expose the unit to rain or moisture.

*Do not install this equipment in a confined space such as a book case or similar unit.
*The apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such vases, shall be placed on the apparatus.
*Worded: “WARNING FOR YOUR PROTECTION PLEASE READ THE FOLLOWING-WATER AND MOISTURE: Unit should not be used

near water(e.g. near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc). Care should be taken
so than objects do not fall and liquids are not spilled into the enclosure through openings.”

presence of uninsulated “dangerous voltage” within
the product’s enclosure that may be of suf-ficient
magnitude to constitute a risk of electric shock to
persons.

This symbol is intended to alert the user to the
presence of important operation and mainte-nance
(servicing) instructions in the literature accompanying
the appliance.

an extension cord, receptacle or other outlet unless the blades
can be fully inserted to prevent blade expo-sure.

fiche polarisée avec un prolongateur, une prise de courant
on une autre sortie de courant, sauf si les lames peuvent
étre insérées à fond sans en laisser aucune partie à
découvert.

R150 PLUS/300 PLUS/500 PLUS

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REFERENCE AMPLIFIER

Unpacking

Please take a few minutes to read this manual to familiarize yourself with important information regarding
installation, product features, and operation.

As with most electronic devices, ORIGINAL PACKAGING (OR EQUAL) IS REQUIRED in the unlikely event that
the product needs to be returned for servicing.

Short Form Instructions

1. Do not connect the AC power until step 6. The POWER switch should be in the OFF position.

2. Adjust both of the LEVEL controls to the fully attenuated position (turn counter-clockwise).

3. Connect an appropriate line level input signal to either the balanced XLR or the balanced 1/4" TRS (Tip-Ring­Sleeve) connector marked INPUTS.

4. Move the MODE selector to the desired position. The Stereo position is the most common.

5. Connect the OUTPUTS to the speaker load according to the mode of operation determined in the previous step.

6. With the power switch in the OFF position, plug in the supplied Universal AC power cord to the product and
an appropriate AC source.

7. Depress the power switch to the ON position. The power switch will illuminate.

8. The product is ready for operation. Slowly increase the LEVEL control to the desired operating level. Avoid
illuminating the PEAK indicator and do not apply too much power to the speakers.

9. Operate the product and the system in a manner which DOES NOT illuminate the PEAK warning indicator.

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R150 PLUS/300 PLUS/500 PLUS

REFERENCE AMPLIFIER

S3125A

Installation

Installation

Environment

Never place this product in an environment which could alter its performance or reduce its service life. Such
environments usually include high levels of heat, dust, moisture, and vibration.

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.

S3125A

R150 PLUS/300 PLUS/500 PLUS

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REFERENCE AMPLIFIER

Description

Description

- R150 PLUS

A 2U rack space, 2 channel amplifier capable of 150W into 8Ω load (bridged mono).

- R300 PLUS
A 2U rack space, 2 channel amplifier capable of 300W into 8Ω load (bridged mono).

- R500 PLUS
A 2U rack space, 2 channel amplifier capable of 500W into 8Ω load (bridged mono).

Features

Features

- 4Ω stable per channel (stereo), 8Ω stable (bridge mono)

- 2U rack space

- Front panel indicators for signal strength, clip, protect, and power

- Rack Ears for permanent installation in a standard 19” (rack mount width) enclosure.

- Detachable AC power cord

Accessories

One detachable AC power cord is provided for use with this product.

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R150 PLUS/300 PLUS/500 PLUS