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Gold Seal Series Amplifier

GS250D and GS150D Models

Installation and Use Manual

© 2015 Bogen Communications, Inc. All rights reserved.

Specifications subject to change without notice.

54-2229-01BA 1601

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Summary of Contents for Gold Seal Series

Page 1: ...Gold Seal Series Amplifier GS250D and GS150D Models Installation and Use Manual 2015 Bogen Communications Inc All rights reserved Specifications subject to change without notice 54 2229 01BA 1601 ...

Page 2: ...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 ...

Page 3: ...ns 5 Output Connections 6 Output Terminal Strip 6 WMT1A 6 To Power Amp 6 Pre Out Power In Jack 6 Tape Out 6 Operation 7 9 Power Switch 7 Individual Volume Controls 7 Lo Cut Filter 7 Contour Switch 7 Audio Enhancement 7 Dual Function Acoustic Equalizer 8 Acoustic Shaping Mode 8 Feedback Control Mode 8 Telephone Paging Controls Settings 8 ALC 9 VOX 9 Variable Mute 9 Troubleshooting 10 Technical Spec...

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Page 5: ... GSRVC From distances up to 1000 feet away from the amplifier this remote volume control adjusts the volume of the amplifier Model WMT1A Balanced Line Output Transformer Introduction 1 4 Dedicated microphone inputs XLR connectors 1 Selectable MIC TEL input 1 Selectable MIC AUX input 1 Dedicated AUX input 4 Ohm 8 ohm 25V 25VCT and 70V transformer coupled outputs 150W 250W and 500W models Rack mount...

Page 6: ...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 Enable...

Page 7: ...muting of individual inputs 12 POWER IN RCA unbalanced direct input to power amp stage for connection to external signal processing equipment used in conjunction with PRE OUT and LINK switch 13 PRE OUT RCA unbalanced output from preamp mixer stage for connection to external signal processing equipment used in conjunction with POWER IN and LINK switch 14 LINK Switch that makes or breaks the interna...

Page 8: ...ar Panel 6 7 20 The MIC 6 AUX 1 input is designed to accept input from a microphone using terminal strip connections or from a high level auxiliary source such as a tuner or CD player using the AUX 1 RCA jack A slide switch is used to select input type Connect a microphone to the screw terminals labeled MIC 6 works only when AUX 1 MIC 6 switch is in the MIC 6 position Use two conductor shielded ca...

Page 9: ...edence control for AUX inputs completely mutes the input signal The VAR MUTE control has no effect when muting inputs using precedence control Phantom Power for MIC 5 MIC 6 Inside Unit A single internal jumper is provided to supply phantom power to both MIC 5 and MIC 6 The amplifier is shipped with the jumper in the OFF position Place Jumper across ON Pins to apply Phantom Power to both MIC 5 and ...

Page 10: ... strip must be installed to use this feature To Power Amp Rear Panel 3 The Gold Seal Series amplifier may be used to drive an external power am plifier can only be used with unbalanced high impedance inputs Note Shorting clip between GND COM on the speaker output terminal strip must be installed to use this feature Pre Out Power In Jacks Rear Panel 12 13 14 These jacks permit the insertion of sign...

Page 11: ...ove richness of sound by restoring the high and low frequencies that the ear is insensitive to at low volume levels The effect diminishes as volume is increased Audio Enhancement Front Panel 9 Rear Panel 16 The front panel Audio Enhancement switch enables or bypasses the Audio Enhancement feature This feature effects all inputs when enabled By regenerating the upper harmonics this audio enhancemen...

Page 12: ... switch is placed in the FEEDBACK CONTROL position the equalizer can be used to reduce feedback and increase the effective gain of the system In feedback control mode the equalizer provides increased control of frequencies between 125 Hz and 8 kHz The 10 bands are located on 2 3 octave centers with 12 dB cut boost on each band Telephone Paging Controls Settings The MIC 5 TEL volume control on the ...

Page 13: ... Panel 18 The telephone page input features voice activated AUX muting This feature always mutes AUX 2 and only mutes AUX 1 when the AUX1 MIC 6 switch is set in that position The VOX control should be set so that only the desired signal is above the threshold level while unwanted noise is below it To adjust the sensitivity of the VOX circuit 1 Rotate the VOX control fully clockwise While making a ...

Page 14: ...connector using the 3 pin connectors but not Pin 1 is the shield connection Pins 2 and 3 connect when using screw terminals to the balanced signal leads on the mic cable Condenser MIC will not work Make sure that phantom power switch MIC 1 4 is on See page 4 MIC 5 and 6 use circuit board jumper See page 5 Telephone input cuts off the music Adjust the VOX control on the rear panel to eliminate any ...

Page 15: ...jack Tape Output 700 mV Rated Output via RCA jack Output Impedance All models balanced or unbalanced 4 ohm 8 ohm 25V 25VCT 70V Output Regulation Better than 2 dB from no load to full load AC Input Voltage 120V 60 Hz AC Current GS150D 2 0A GS250D 3 2A Thermal Emissions Full Power GS150D 256 1 BTU HR GS250D 341 BTU HR Variable Mute Range 60 21 10 0 dB AUX1 2 ALC Distortion less than 0 5 Compression ...

Page 16: ...bility arising out of the manufacture sale or supplying of products or their use or disposition whether based upon warranty contract tort or otherwise shall be limited to the price of the product IN NO EVENT SHALL BOGEN BE LIABLE FOR SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES INCLUDING BUT NOT LIMITED TO LOSS OF PROFITS LOSS OF DATA OR LOSS OF USE DAMAGES ARISING OUT OF THE MANUFACTURE SALE OR SU...

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