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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Bogen HTA250A alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Bogen HTA250A, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Bogen service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Bogen HTA250A.
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Table of contents for the manual
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Page 1
Specifications subject to change without notice. © 2010 Bogen Communications, Inc. All rights reserved. 54-5832-04B 101 1 HT A125A / 250A Power Amplifiers Installation & Use Manual[...]
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Page 2
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. W ARNING: T o reduce the risk of Fire or Electric Shock, Do Not Expose this apparatus to rain or moisture. Apparatus shall not be exposed[...]
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Page 3
Panel Diagrams HT A125A HT A125A /250A HT A250A 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 T ransformer 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 [...]
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Page 4
The Bogen HT A125A and HT A250A Series Power Amplifiers are high performance units. MOSFET technology delivers distor- tion-free power into reactive loads, such as high-performance loudspeakers or transformers. The HT A125A supplies 125 watts (HT A250A supplies 250 watts) continuous RMS output at less than 0.5% total harmonic distor- tion, with a f[...]
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Page 5
High-Impedance Input A high-impedance input is provided by two RCA type jacks. An input signal of 500mV is required for full rated output. Low-Impedance Balanced Input Caution: T o avoid electric shock, be sure to disconnect AC Power Cord before removing the cover of the amplifier unit. DO NOT perform any function requiring the removal of the cover[...]
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Page 6
Operation Power The power switch applies power to the amplifier; it does not con- trol any associated equipment which may be connected to the auxiliary power receptacle on the rear panel. The POWER SWITCH illuminates when power has been applied to the unit. Low-Cut Filter Switch Caution: T o avoid electric shock, be sure to disconnect AC Power Cord[...]
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Page 7
T echnical Specifications Rated Output Power: HT A125A: 125W; HT A250A: 250W T otal Harmonic Distortion: Less than 0.5%, 20 to 20,000 Hz at full rated output Frequency Response: ±1 dB, 20 to 20,000 Hz at full rated output Input Sensitivity: Hi-Z, 500mV ; Lo-Z balanced, with optional transformer , 150mV Hum and Noise: 90 dB below rated output Outpu[...]
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Page 8
50 Spring Street, Ramsey , NJ 07446, U.S.A. T el. 201-934-8500 • Fax: 201-934-9832 www .bogen.com The Bogen HT A125A & HT A250A Power Amplifiers are warranted to be free from defects in material and workmanship for two (2) years from the date of sale to the original purchaser . Any part of the product covered by this warranty that, with norma[...]