PA FSHIFTER

Antilarsen / Frequency Shifter

This equipment has been specifically designed for the elimination of possible audio feedback that can be generated in an audio system in environments such as churches and conference rooms. Feedback can occurs when a signal comes back to the microphone, after being picked up by a microphone and then played amplified (through the speakers). The signal, due the loop that has been generated, is continually amplified causing a very annoying hiss. The FSHIFTER thanks to the internal DSP shifts in frequency the output signal from the input so that the loop noise does not close ever, going to greatly reduce the possibility of having the annoying hissing.

Main features:

  • Balanced line input on XLR connector
  • Unbalanced line input on RCA connector
  • Balanced line output on XLR connector
  • Unbalanced line Output RCA connector
  • LED indication of operating mode
  • Switch power supply 230/117V~ 50/60Hz

Technical specifications

ModelFSHIFTER
INPUT
BAL INBalanced Line Input (Sensitivity: 15KOhm775mV)
LINE INPUnbalanced Line Input
Max input Level19dBm
OUTPUT
BAL OUTBalanced Line Output: 600Ohm -1V
LINE OUT

Unbalanced Line Output: 600Ohm – 2.5V


S/N 


≥85 dB

Frequency Response20Hz-20KHz +/-3dB (shift function in OFF)
150Hz-15KHz +/-3dB (shift function in ON)
T.H.D.≤1% @ 1KHz
Frequency shift7Hz +/- 1Hz
Power supply230/117V~ 50/60Hz
Power Consumption12VA
Input ConnectorsBAL: XLRF
UNBAL: RCA
Output ConnectorsBAL: XLRM
UNBAL: RCA
Dimensions (WxHxD)483x44x195 mm – 1U Rack standard 19”
Weight3.2Kg (7.055lb)

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    User's manual
    PROEL-COMMERCIAL-AUDIO-300x300-1
    PA FSHIFTER
    Antilarsen / Frequency Shifter

    This equipment has been specifically designed for the elimination of possible audio feedback that can be generated in an audio system in environments such as churches and conference rooms. Feedback can occurs when a signal comes back to the microphone, after being picked up by a microphone and then played amplified (through the speakers). The signal, due the loop that has been generated, is continually amplified causing a very annoying hiss. The FSHIFTER thanks to the internal DSP shifts in frequency the output signal from the input so that the loop noise does not close ever, going to greatly reduce the possibility of having the annoying hissing.

    Main features:

    • Balanced line input on XLR connector
    • Unbalanced line input on RCA connector
    • Balanced line output on XLR connector
    • Unbalanced line Output RCA connector
    • LED indication of operating mode
    • Switch power supply 230/117V~ 50/60Hz
    ModelFSHIFTER
    INPUT
    BAL INBalanced Line Input (Sensitivity: 15KOhm775mV)
    LINE INPUnbalanced Line Input
    Max input Level19dBm
    OUTPUT
    BAL OUTBalanced Line Output: 600Ohm -1V
    LINE OUT

    Unbalanced Line Output: 600Ohm – 2.5V


    S/N 


    ≥85 dB

    Frequency Response20Hz-20KHz +/-3dB (shift function in OFF)
    150Hz-15KHz +/-3dB (shift function in ON)
    T.H.D.≤1% @ 1KHz
    Frequency shift7Hz +/- 1Hz
    Power supply230/117V~ 50/60Hz
    Power Consumption12VA
    Input ConnectorsBAL: XLRF
    UNBAL: RCA
    Output ConnectorsBAL: XLRM
    UNBAL: RCA
    Dimensions (WxHxD)483x44x195 mm – 1U Rack standard 19”
    Weight3.2Kg (7.055lb)

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      Proel S.p.A.
      Via alla Ruenia 37/43, CAP 64027 Sant’Omero (TE) ITALY
      P.Iva 00778590679 Cap.soc.: € 8.000.000 i.v. – C.C.I.A.A. Te R.E.A. n. 95381