Bogen HTA125A Users Manual
Specifications subject to change without notice.
© 2010 Bogen Communications, Inc.
All rights reserved. 54-5832-04B 1011
HTA125A/250A
Power Amplifiers
Installation & Use Manual
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.
Panel Diagrams
HTA125A
HTA125A/250A
HTA250A
1. Power Cord:
Ground Pin Connected to Chassis
2. 120V AC Outlet
(Not Switched)
3. AC Line Fuses
4. Output Connections
5. Balanced Input
(Accessory Transformer Required)
6. Unbalanced Input
7. Input Level Adjustment
1. Overload Shut Down Indicator
2. ON/OFF Power Switch
1
2
4
5
6
7
1
2
2
3
4
5
6
7
3
FRONT PANEL
REAR PANELS
1
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