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Very satisfied! I was searching for several days, but nope; till I discovered your webside and there it was at a very reasonable price. Keep up the good work!
Paul
Flanders
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Generally speaking good copy; a few pages too hard contrast...
Good service and communication.
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I purchased the unit from a private party and the original owners manual was not available. Having the ability to download it was extremely helpful and clarified operating the equipment immensely. This is a complicated unit and without the manual I would not have been able to maximize it's potential. Thank you.
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Being a user of older radios of many kinds, preferring them over more modern rigs, this manual was invaluable in the programming of my two. I now know for certain what the assorted buttons functions are, and am very grateful to have found this excellent site. Many thanks for your assistance, Tony.
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Clear and easy to read. All details as expected. Price acceptable , and quick delivery.
222 HARTREY AVE., EVANSTON, IL 60202-3696 U.S.A. AREA CODE 312/866-2200· CABLE: SHUREMICRO
THE SOUND OF THE PROFESSIONALS®
PROFESSIONAL PRODUCTS
Voltage Gain (ref 1 kHz)
Input Mic Line Mic Line Hi-Z Headphone Impedance Lo-Z Impedance 4 ohms total (8 ohms per earphone, parallel) 1 k total (2k per earphone driver, parallel) Gain 70 dB 20 dB 96dB 46 dB
GENERAL The FP12 is an in-line, battery-powered amplifier designed to accept a microphone- or line-level signal, bridge it, and produce a signal sufficient to drive headphones at very loud levels. The FP12 is ideal for anyone in the broadcasting, sound reinforcement or audio recording fields who has a need for headphone monitoring or checking microphone- or line-level cable runs. In addition, the FP12 can be used to provide multiple headphone feeds, a two-station intercom, extra power for existing headphone circuits, or a means of practicing electronic instruments through headphones. FEATURES
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Total Harmonic Distortion Less than 1% (40 Hz to 15 kHz; measured at 10 dB below clipping point) Input Clipping Levels (at 1 kHz) Mic Input: 200 mV (-14 dBV) Line Input: 60V ( +35 dBV) Output Clipping Levels Lo-Z: 750 mV ( -2.5 dBV) (load resistance 4 ohms total; 8 ohms per earphone driver, parallel) Hi-Z: 15V ( + 23 dBV) (load resistance 1 k total; 2k per earphone driver, parallel) Input Impedance (ref 1 kHz) Mic: 7.5 kilohms ±10% Line: 66 kilohms ±10% Output Impedance (ref 1 kHz) Lo-Z: 16 ohms ±10% Hi-Z: 440 ohms ±10% Phase Input in phase with output. Pin 2 of Mic Input in phase with Phones (both phone jacks and mini jacks) tip and ring Protection Protected against damage from shorted outputs, (up to 5V [ + 14 dBV] input signals) Power Type: 9V alkaline battery Battery Life: Approximately 10 hours under normal operating conditions Current Drain (typical): 6 mAdc (idle); 72 mAdc (clipping) Temperature Range Operating: 0 ° to 49°C (3 2 ° to 1 2 0 ° F ) Storage: - 2 9 ° to 74°C ( -20° to 165° F) Connectors Input/Output Locking 3-socket XLR, Locking 3-pin XLR, 3-circuit phone jacks (2)
Wide-range frequency response Low input noise and harmonic distortion High-impedance bridging input does not load signal source Switchable microphone- and line-level inputs Switchable low- and high-impedance headphone outputs Parallel 3-circuit phone and miniature (3.5 mm) headphone jacks Balanced loop-through locking XLR connectors and phone jacks Powered by easily obtainable 9V alkaline battery Low current drain for extended battery life Rugged construction, with durable belt clip for field use Low susceptibility to radio-frequency interference
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SPECIFICATIONS
Frequency Response (ref 1 kHz) 40 Hz to 15 kHz, + 1, - 3 dB Equivalent Input Noise -118 dBV (maximum gain; source resistance 150 ohms; 300 Hz to 20 kHz)
Copyright 1985, Shure Brothers Inc. 27A8072 (EH)
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