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Summary of Contents for Bogen A12
- Page 1 O W N E R ’ S G U I D E MODEL A12 A-SERIES ENVIRONMENT-PROOF HIGH-OUTPUT/LONG-THROW LOUDSPEAKER © 2014 Bogen Communications, Inc. Specifications subject to change without notice. 54-2172-01F 1503...
- Page 2 WRONG CORRECT The A12 is a ported speaker, designed to shed water, and includes a unique water- repellent scrim. This scrim covers the ports and horn throat to slow the ingress of water, but a small amount of water may still enter the cabinet. Weep holes are pro- vided at the bottom of the speaker baffle to drain any water that enters the cabinet.
- Page 3 (included). MOUNTING THE SPEAKER ON THE YOKE The A12 yoke allows the speaker to be TOP-DOWN VIEW slipped onto it with the locking knobs attached.
- Page 4 UNDERPOWERING VS. OVERPOWERING Surprisingly, speaker damage can be caused by amplifiers with too little power. An underpowered, overdriven amp sends heavily distorted, clipped audio to the speakers. This can damage the high-frequency drivers. Clipping is usually audible; it may vary from a harsh sound to a fuzzy or blurry sound. If you hear clipping at loud volume levels, turn down the volume until the distortion is no longer present.
- Page 5 The A12 has a 16-ohm input impedance which allows for easy paralleling of multiple speakers. In the example on the next page, four speakers are paralleled on each amplifier output, so that each run has a total impedance of 4 ohms.
- Page 6 = Total Load Impedance (1/Rs + 1/Rs ... 1/Rs) Rs is the impedance of the speaker, for the A12 it is equal to 16 ohms. Note: If all speakers are the same Rs , it is simply: = Total Load Impedance...
- Page 7 LIMITED WARRANTY; EXCLUSION OF CERTAIN DAMAGES The Bogen Model A12 is warranted to be free from defects in material and workmanship for five (5) years from the date of sale to the original purchaser. Any part of the product covered by this warranty that, with normal...
- Page 8 www.bogen.com...
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