»PROLOOP LOSplus« for low-overspill applications in large rooms and halls

As a ready-for use system for operating low-overspill systems in large rooms of up to 1,000 m², the induction loop amplifier PROLOOP LOSplus has all the required electronic equipment in one single casing.

The high-performance amplifier has an Automatic Gain Control (AGC) that also guarantees steady sound with excellent speech reproduction even in challenging acoustic conditions. For sound quality control on the induction loop outputs A and B, the PROLOOP LOSplus has a monitoring output for headphones.

  • Homogeneous signal supply to rooms up 1,000 m²
  • No signal fluctuation when the hearing aid wearer moves the head
  • Reduced sensitivity towards architecture-related steel reinforcements
  • High efficiency, low power consumption
  • 19” model

Technical data

Main connection 230 V AC, 45-60 Hz, 150 Watt
Passive protection Fuse 1,5 A
Surface coverage 1,000 sqm acc. to IEC 60118-4
###Induction loops output  
Max. current 2x 12 A RMS / 2x 33,9 A from peak to peak, 1-5 ms, 1 kHz
Max. voltage 2x 31,1 V RMS / 2x 88 V peak to peak
Output AGC Sets the voltage and current for continuous signals such as oscillation and sinus curves to -10 dB after 0.6-1 seconds. Short pulses and normal program signals are not limited.
Frequency range 100 – 5.000 Hz (±3 dB)
Distortion < 1 %
Cable connection 2 screw terminals on the reverse of the device
Slave LINE OUT 6.3 mm jack plug
Induction loop monitoring 1 headphone output (left audio channel for induction loop output A and right audio channel for induction loop output B)
IN 1 XLR(F) socket, Microphone input MIC sensitivity 2.5 mV – 10 V RMS
IN 2 XLR(F) socket, can be switched as a microphone or line input
IN 3 6.3 mm jack plug
$$$100-V priority input for connection to PA systems  
Dynamics > 36dB
###Control and display  
Loop setting Rotary knob for channel A and B
Input level IN 1, IN 2 und IN3 can be set separately
Display Main connection: 1 green LED***Input level: 6 different coloured LEDs***Current: 6 red LEDs per loop channel
Dimensions 90 x 430 x 270 mm (H x W x D), 19-inch rack (2 height units)
Attachment 4 attachment points on the front plate for installation in 19-inch rack
Colour black
Weight 9,3 kg

A-4254-0, a42540, 4254