Bogen GS-250, GS-60, GS-35, GS-100, GS-150 User Manual

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Gold Seal Series Amplifiers
Models GS-35, GS-60, GS-100, GS-150, GS-250
4 dedicated microphone inputs (XLR connectors)
1 selectable Mic/Tel input
1 selectable Mic/Aux input
1 dedicated Aux input
4-ohm direct coupled output
8-ohm, 25V, 25VCT, and 70V transformer-
35W, 60W, 100W, 150W and 250W versions
Rack mountable — 2RU package for all models
Dual function 10-band graphic equalizer (Acoustic
EQ/Feedback Control)
True loudness contour function
Aphex® Aural Exciter for improved intelligibility
Switchable phantom power supply
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 (GS-250 only)
Available tamper resistant front cover
Available rack mounting kit
Available remote volume control
Features
The Bogen Gold Seal Series amplifiers are an extraordinary addition to Bogen's line of quality audio amplifiers.Designed
with the sound contractor in mind,they provide unparalleled flexibility and versatility, without the need for expensive 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 amplifiers — 250W, 150W, 100W, 60W and 35 W
models — incorporate the exact same set of features.
In addition to its extensive input flexibility, the Gold Seal Series amplifiers offer a combination of features not found in any
other commercial amplifier.
Downloaded from: http://www.guardianalarms.net
© 1997 Bogen Communications, Inc.
50 Spring St., Ramsey, NJ 07446
Publication No. 54-5941-04
9903
Printed in Korea
All rights are reserved. No part of this document may be
photocopied, reproduced, or translated to another language
without the prior written consent of Bogen Communications
Inc.
Notice: The information contained in this document is sub-
ject to change without notice and should not be construed
as a commitment by Bogen Communications, Inc.
Bogen Communications, Inc. assumes no responsibility
for any errors that may appear in this document nor
does it make an expressed or implied warranty of any
kind with regard to this material, including, but not lim-
ited to, the implied warranties of merchantability and
fitness for a particular purpose.
Bogen Communications Inc. shall not be liable for incidental
or consequential damages in connection with, or arising out
of the furnishing, performance, or use of this document and
the equipment which it describes.
Complete product warranty information is provided on a
separate product registration card.
WARNING
The Warning label calls attention to a procedure, practice,
or the like, which, if not correctly performed or adhered to,
could result in damage to the unit or personal injury. Do
not proceed beyond a warning label until the indicated con-
ditions are fully understood and met.
Warning: Changes or modifications to this unit not
expressly approved by the party responsible for compliance
could void the user’s authority to operate the equipment.
Bogen® is a registered trademark of Bogen Communications, Inc.
APHEX® is a registered trademark of Aphex Inc.
Contents
Important Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Packing List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Front panel (All Models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Rear panel (Models GS-35, GS-60, GS-100, GS-150) . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Rear Panel (GS-250) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Input Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Mic 1-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Mic 5/Tel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Mic 6/Aux1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Aux 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Phantom Power for Mic 5 & Mic 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Remote Volume Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Precedence Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Output Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Output Terminal Strip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
WMT-1A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
To Power Amp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Pre-Out/Power In Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Tape Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Power Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Individual Volume Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Lo-Cut Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Contour Pushbutton Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Aphex Aural Exciter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Dual Function Acoustic Equalizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Telephone Paging Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Variable Mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Bogen Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
1
Important Safety Instructions
1. Read and understand all instructions.
2. Follow all warnings and instructions marked on the product.
3. Unplug the product from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp
cloth for cleaning.
4. Do not use this product near water.
5. Do not place this product on an unstable cart, stand or table , where the product may fall, causing serious damage to the
product.
6. Slots and openings in the cabinet and the back or bottom are provided for ventilation, to protect it from overheating.
These openings must not be blocked or covered. This product should not be placed in a built-in installation unless prop-
er ventilation is provided.
7. This product should be operated only from the type of power source indicated on the marking label.
8. The power supply included with this product has a 2-prong plug for connection with a standard electrical outlet. Do not
allow anything to rest on the power cord. Do not locate this product where the cord will be abused by persons walking
on it.
9. Do not overload wall outlets and extension cords as this can result in the risk of fire or electrical shock.
10.Never push objects of any kind into this product through cabinet slots as they may touch dangerous voltage points or
short out points that could result in a risk of fire or electric shock. Never spill liquid of any kind on the product.
11.To reduce the risk of electric shock, do not disassemble this product, but return it to the factory service center when
some service or repair work is required. Opening or removing covers may expose you to dangerous voltages or other
risks. Incorrect assembly can cause electric shock when the product is subsequently used.
12.Unplug this product from the wall and refer servicing to the factory service center personnel under the following condi-
tions:
a. When the power supply cord or plug is damaged or frayed.
b.If liquid has been spilled into the product.
c. If the product has been exposed to rain or water.
d. If the product does not operate normally by following the operating instructions. Adjust only those controls that are
covered by the operating instructions because improper adjustment of other controls may result in damage.
e. If the product has been dropped or the cabinet has been damaged
f.If the product exhibits a distinct change in performance.
NOTE: SAVE THESE INSTRUCTIONS
Unpacking
Packing List
The unit was carefully checked before leaving the factory.
The Gold Seal Series carton contains the following components:
1 - Gold Seal Series unit
1 - User Manual
1 - Product Registration Card
Accessories
The following accessories are available for your Gold Seal Amplifier at additional cost:
Model GSTRC — A plexiglass cover to protect control settings
Model GSRPK — Rack mounting installation kit.
Model GSRVC — A remote volume control to control volume of the amplifier from distances up to 1000 feet.
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Features
Front Panel (All Models)
1 2
5
6 9
10
8
7
43
1. MIC 1 to 4 - Individual level controls for dedicated microphone inputs.
2. MIC 5/TEL - Individual level control for Mic or Tel input depending on input mode selected.
3. MIC 6/AUX 1 - Individual level control for Mic 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. Band 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. APHEX AURAL EXCITER - Enables or disables the Aphex Aural Exciter effect. Affects all input signals.
10. POWER - AC Power switch.
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