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ProLoop C (170m2)

Order Code: 230-200

£279.90 ex. VAT

£335.88 inc. VAT

Subtotal: To go here

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This product carried a warranty for 2 years

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2 Year Warranty

If you have a pacemaker or ICD fitted you should read your user manual along with the FAQ's on our website before using this product. If in doubt consult your cardiologist. Click for more information.

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The PROLOOP amplifier family is designed for professional use in medium-sized rooms (up to 170 m²) in private buildings and public facilities, in which particularly high dependability and extremely reliable operation are required.

Thanks to a 100-percent short-circuit-proof amplifier, switchable, symmetrical XLR input jacks and extremely stable output performance, the PROLOOP C is able to meet these demands.

Automatic Gain Control (AGC) guarantees consistent field strength and reproduces stable sound with a special emphasis on clear speech, even under acoustically demanding conditions.

Corresponding test equipment can be used to evaluate the sound quality via the integrated monitor out jack.


  • High output current: 4 A RMS
  • Short-circuit-proof
  • Automatic fuse reset
  • Two symmetrical XLR input jacks
  • One RCA input jack
  • One line output jack
  • Extra-sturdy jacks
  • Dual action AGC for excellent speech recognition
  • High availability, operating reliability and quality assurance
  • Convenient monitoring of the magnetic field: Can be done using headphones or speakers
  • Treble control to compensate for treble losses due to reinforcement

Technical Information

Mains connection:

  • 230-240 V AC 50 Hz, 7-200 W, 10 A fuse
  • Coverage: 170 m² acc. to IEC 60118-4, single-loop, free field

Induction loop output

  • Max. current: 4 A RMS, short-circuit-proof
  • Max. voltage: 31 V from peak to peak
  • Output AGC:  Sets voltage and power for steady signals like oscillation and sine curves after 0.6-1 seconds to -10 dB. Short pulses and normal program signals are not limited.
  • Frequency response: 100 - 5000 Hz ( ± 3 dB)
  • Distortion: < 1%
  • Cable connection: Screw connection on rear panel of the amplifier


  • 1. LINE OUT: 0 dBm-RCA out (with AGC function)


  • IN 1 and 2: 0.5 mV-100 mV / 10 kOhm (mic.) alt. 25 mV - 4 V/ 10 kOhm (line) AGC, switchable phantom voltage, XLR connections
  • IN 3: 50 mV-10 V / 10 kOhm, RCA connection
  • AGC: Dynamics: > 70 dB
  • Rise time: 2 - 500 ms
  • Fall time: 0,5 - 20 dB/s

Controls and displays

  • Treble control: 0 - +9 dB, potentiometer
  • Induction loop adjustment: 0 - 170 m², potentiometer
  • Displays: Mains connection: 1 green LED 
  • Input level: 1 green LED 
  • Induction loop power: 1 green LED

Induction loop monitoring

  • 6.3 mm jack for headphone connection


  • Dimensions: (H x W x D) 64 x 295 x 205 mm
  • Weight: 3,6 kg
  • Color: black

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