Shure FP22


Shure FP22


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

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  • Frequency Response: Stereo line input 20 - 20,000 Hz, Mono XLR input  50 - 18,000 Hz 
  • Equivalent Input Noise: –125 dBV (maximum gain; source resistance 150 Ω; 20 Hz to 20 kHz)
  • Voltage Gain: Mic 74 - 80 dB, Line -10 - 29 dB
  • Total Harmonic Distortion: Less than 0.5% measured at –8 dBV into 8 Ω (20 Hz to 20 kHz stereo line input; 50 to 18 kHz mono XLR input)
  • Input Clipping Levels: Mic level 160 mV (–16 dBV), Line level 50 V (+34 dBV)
  • Input Impedance: XLR (mic level) 6.3 kΩ, XLR (line level) 66 kΩ, Stereo Line (pad at 0) 50 kΩ, Stereo Line (pad at 30 dB) 53 kΩ ±10% Headphone Output Impedance: 10.2 Ω
  • 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 Power: 12 to 24 Vdc Current drain (typical), 11 mAdc; 80 mAdc (clipping) at 9 Vdc
  • 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 outputs Two 3.5 mm stereo mini jacks
  • Power: 6.5 mm coaxial power connector (tip +, sleeve –)  
  • Overall Dimensions: 80.9 x 55.5 x 153 mm
  • Net Weight: 450 grams