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Bidding has ended on this item. Item:Shure FP 22 Professional Headphone Amplifier  |
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The FP22 is a battery-powered stereo headphone amplifier that provides headphone feeds from any audio input source. It has the unique capability of monitoring mono, stereo and mixed mono and stereo inputs. The FP22 monitors and combines these signals in the headphones without affecting the original signal. Stereo or mono headphone outputs appear on 1/4-inch phone or mini 3.5 mm stereo jacks. The FP22 can drive headphones to very loud levels. It is ideal for anyone in the broadcasting, sound reinforcement or audio recording fields who needs a flexible, high–quality headphone monitor.FP22 uses:
Providing multiple headphone feeds On stage in-ear monitoring Boosting headphone circuits Headphone foldback in recording studios Practicing musical instruments or mixed vocals through Features:
Capable of mixing mono and stereo inputs in headphone outputs Complete user control of headphone volume Loopthrough 1/4-inch stereo phone jacks (can be internally switched to become separate left and right inputs) 30 dB pad for stereo line input to accommodate a wide range of line level sources Balanced loopthrough XLR connectors switchable from mic to line level Separate XLR volume control on pull-out control knob Overall headphone balance control Overall stereo/mono switch for headphones LED power indicator Powered by easily obtainable 9–volt alkaline battery or by external 12 to 24 Vdc power supply (such as Shure Model PS20 or PS20E) 1/4-inch and 3.5 mm stereo headphone jacks Effectively shielded for low susceptibility to radio-frequency interference (RFI) SPECIFICATIONS Frequency Response (ref 1 kHz)20 Hz to 20 kHz, +1, –3 dB (stereo line input) 50 Hz to 18 kHz, +1,–3 dB (mono XLR input) Equivalent Input Noise –125 dBV (maximum gain; source resistance 150 W; 20Hz to 20 kHz) Total Harmonic Distortion Less than 0.5% measured at –8 dBV into 8 W (20 Hz to20 kHz stereo line input; 50 to 18 kHz mono XLR input) Input Clipping Levels (at 1 kHz)Mic level . . . . . . . . . . . . . . . . . . . . . . . . 160 mV (–16 dBV) Line level . . . . . . . . . . . . . . . . . . . . . . . . . 50 V (+34 dBV) Input Impedance XLR (mic level) . . . . . . . . . . . . . . . . . . . . . . . 6.3 k W ±10%XLR (line level) . . . . . . . . . . . . . . . . . . . . . . . 66 k W ±10%Stereo Line (pad at 0) . . . . . . . . . . . . . . . . . 50 k W ±10%Stereo Line (pad at 30 dB) . . . . . . . . . . . . . 53 k W ±10%Headphone Output Impedance (at 1 kHz)10.2 W ± 10%Phase Input in phase with output. Pin 2 of XLR input in phase with tip and ring of all Headphones jacks. Power Internal . . . . . . . . . . . . . . . . . . . . One 9 V alkaline battery Battery Life . . . . . . . Approximately 15 hours under normal operating conditions External . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 to 24 Vdc Current drain (typical) . . . . . . . . . . . . 11 mAdc; 80 mAdc (clipping) at 9 Vdc Temperature Range Operating . . . . . . . . . . . . . . . . . 0 o to 49oC (32o to 120oF)Storage . . . . . . . . . . . . . . –29 o to 70oC (–20o to 165oF)Connectors Loopthrough: Two 3-pin balanced XLR-type connectors (one male, one female) Two 1/4-inch stereo phone jack (tip-left; ring-right; sleeveground)Headphones: Two 1/4-inch stereo phone jack headphone outputsTwo 3.5 mm stereo mini jacks Power: 6.5 mm coaxial power connector (tip +, sleeve –) Case Die-cast zinc; matte black enamel finish Overall Dimensions 80.9 mm H x 55.5 mm W x 153 mm D (3- 3/16 x 2-3/16 x 6-1/16 in.)Net Weight 450 grams (1 lb) |
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