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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 equi-
lateral 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.

Summary of Contents for C10

Page 1: ...Classic Series Public Address Amplifiers C10 C20 Models Installation and Use Manual 2009 Bogen Communications Inc All rights reserved Specifications subject to change without notice 54 5978 01C 1106 ...

Page 2: ...o 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 I...

Page 3: ...t Connections 5 Microphone Connections 5 Microphone Precedence 5 AUX 5 TEL 5 Output Connections 6 Speakers General 6 OPERATION 6 POWER 6 MIC1 MIC2 6 AUX 6 TEL 6 VOX SENS 6 Microphone Precedence 6 TREBLE 6 Overload Protection 6 ACCESSORIES 7 TECHNICAL SPECIFICATIONS 7 LIMITED WARRANTY Back Cover ...

Page 4: ...m speakers and for 25 and 70 volt constant voltage systems An accessory transformer Bogen Model WMT1A can be installed to provide input and output matching to a telephone line The amplifiers operate from a 120 60Hz source A thermostat enclosed in the power transformer protects the unit against overloads The amplifier also accommodates a transformer balanced TEL page input with VOX detector for mut...

Page 5: ... any signal source having a line level greater than 85mV output TEL A balanced isolating transformer input for a telephone line is provided A 600 ohm telephone line may be connected to the TEL terminals Rear Panel 1 Amplifier Output Screw terminal strip containing all available speaker outputs 2 Mute Input Screw terminal input for microphone precedence 3 MIC1 MIC2 Screw terminal input for Lo Z bal...

Page 6: ...if the input is not used VOX SENS The VOX SENSitivity control should be set so that only the desired TEL signal is above the threshold level while noise and unwanted signal is below it When an input signal such as a voice is detected the AUX channel will be muted To adjust the sensitivity of the circuit 1 Rotate the control fully clockwise While making a page announcement and talking at a low leve...

Page 7: ... Power Requirements 120V 60Hz C10 38W C20 50W Dimensions 11 3 8 W x 2 7 8 H x 7 3 8 D both models Shipping Weight C10 6 lb C20 6 lb Technical Specifications Accessories WMT1A Line Matching Transformer Hi Z 10k ohm primary impedance Lo Z 600 ohm secondary impedance balanced with center tap Matches high impedance unbalanced or low impedance balanced signals Jumper selection allows line level signal ...

Page 8: ...ed THE FOREGOING LIMITED WARRANTY IS BOGEN S SOLE AND EXCLUSIVE WARRANTY AND THE PURCHASER S SOLE AND EXCLUSIVE REMEDY BOGEN MAKES NO OTHER WARRANTIES OF ANY KIND EITHER EXPRESS OR IMPLIED AND ALL IMPLIED WARRANTIES OF MER CHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED AND EXCLUDED TO THE MAXIMUM EXTENT ALLOWABLE BY LAW Bogen s liability arising out of the manu facture sale...

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