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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[...]