Bogen GS150 User Manual

Gold Seal Series Amplifier

GS35, GS60, GS100, GS150, & GS250 Models

Installation and Use Manual

Specifications subject to change without notice.

54-5941-04D 1101

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

NOTICE: Every effort was made to ensure that the information in this guide was complete

and accurate at the time of printing. However, information is subject to change.

WARNING: To reduce the risk of Fire or Electric Shock, Do Not Expose this apparatus

to rain or moisture.

Apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such as vases shall be placed on the apparatus.

WARNING: Only connect unit to AC mains outlet providing protective earthing connection.

NOTE: Mains plug is used as disconnect device from the mains and shall remain readily

accessible and operable.

CAUTION: These servicing instructions are for use by qualified service personnel only. To reduce the

risk of electric shock, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so.

CAUTION: DO NOT INSTALL OR PLACE THIS UNIT IN A BOOKCASE, BUILT-IN CABINET, OR IN ANOTHER CONFINED SPACE. ENSURE THE UNIT IS WELL VENTILATED. TO PREVENT THE RISK OF SHOCK OR FIRE HAZARD DUE TO OVERHEATING, ENSURE THAT CURTAINS AND ANY OTHER MATERIALS DO NOT OBSTRUCT THE VENTILATION VENTS.

Always follow these basic safety precautions when installing and using the unit:

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 unit 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. Unplug this apparatus during lightning storms or when not used for long periods of time.

13. 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.

CAUTION: TO PREVENT THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE ANY FRONT/BACK COVERS OR PANELS. NO USER-SERVICEABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED PERSONNEL.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions.

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.

Contents

Important Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Packing Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Panel Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-8

Front Panel (All Models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Rear Panel (Models GS35, GS60, GS100, GS150) . . . . . . . . . . . . . . . . . . . .7

Rear Panel (GS250) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Input Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-10

MIC 1-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

MIC 5/TEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

MIC 6/AUX 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

AUX 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Phantom Power for MIC 5 & MIC 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Remote Volume Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Precedence Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Output Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Output Terminal Strip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

WMT1A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

To Power Amp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Pre-Out/Power In Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Tape Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-14

Power Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Individual Volume Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Lo-Cut Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Contour Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Audio Enhancement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Dual-Function Acoustic Equalizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Telephone Paging Controls & Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Variable Mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Limited Warranty; Exclusion of Certain Damages . . . . . . . . . . . . . . . . . . . . .17

Introduction

The Bogen Gold Seal Series amplifiers were designed with the sound contractor in mind. They provide unparalleled flexibility and versatility, without the need for add-on modules.

Unlike other typical amplifier lines, the professional sound contractor need not purchase a higher-powered amplifier just to get more extensive features or flexibility. Each of the Gold Seal Series amplifier models incorporate the exact same set of features – from 35 watts up to 250 watt models.

In addition to its extensive input flexibility, the Gold Seal Series amplifiers offer a combination of features not found in any other commercial amplifier.

Features

Packing Contents

1 - Gold Seal Series Amplifier

1 - User Manual

Accessories

The following accessories are available for your Gold Seal Series Amplifier at additional cost:

• Model GSTRC — A plexiglass cover to protect control settings

• Model GSRPK — Rack mounting installation kit

• Model GSRVC — From distances up to 1000 feet away from the amplifier, this remote volume control adjusts

the volume of the amplifier

• 4 Dedicated microphone inputs (XLR connectors)

• 1 Selectable MIC/TEL input

• 1 Selectable MIC/AUX input

• 1 Dedicated AUX input

• 4-Ohm direct output

• 8-Ohm, 25V, 25VCT, and 70V transformer-

coupled outputs

• 35W, 60W, 100W, 150W and 250W models

• Rack mountable – 2RU package for all models

• Dual-function 10-band graphic equalizer (Acoustic

EQ/Feedback Control)

• True loudness contour function

• Audio Enhancement feature for improved intelligibility

• Switchable phantom power (15V DC)

• Variable AUX input muting

• Remote master volume control capability

• Input muting via contact on all inputs

• Voice-activated AUX muting on TEL input

• Automatic level control on TEL input

• AUX fade back after TEL page

• Preamp out/Power amp in connections

• Booster amp output connection

• Tape output connection

• Balanced line driver output (using WMT1A accessory)

• Lo-cut filter for MIC channels

• 3-speed fan cooling (GS250 only)

• Available tamper-resistant front cover (GSTRC)

• Available rack mounting kit (GSRPK)

• Available remote volume control (GSRVC)

Panel Descriptions

Front Panel (All Models)

2 5

9 10

743

1. MIC 1 to 4 - Individual level controls for dedicated microphone inputs.

2. MIC 5/TEL - Individual level control for MIC 5 or TEL input depending on input mode selected.

3. MIC 6/AUX 1 - Individual level control for MIC 6 or AUX 1 input depending on input mode selected.

4. AUX 2 - Individual level control for dedicated AUX 2 input.

5. Contour - Enables or disables loudness equalization. Affects only AUX 2 and MIC 6/AUX 1 if set in AUX mode.

6. Dual Mode Equalizer - 10 band graphic EQ with dual center frequency ability.

7. Dual Mode Equalizer Selector Switch - Selects EQ frequency bands or EQ defeat (OUT).

8. MASTER - Master output level control.

9. AUDIO ENHANCEMENT - Enables or disables the Audio Enhancement effect. Affects all input signals.

10. POWER - AC Power switch.

+ 14 hidden pages