ProLoop LOS (300m2)

The PROLOOP LOS is a complete system for the operation of low-overspill systems. It includes the complete range of electronics required in a single enclosure. Thus, there is a flexibly sized, reliable low-overspill solution available to serve neighbouring event rooms and assembly halls up to 300 square metres in size.

The system is equipped with Automatic Gain Control (AGC) to produce stable sound with outstanding speech reproduction, even under difficult acoustic conditions. The integrated monitor output for the corresponding measurement technology makes it possible to easily and conveniently test the sound quality of the induction loop system.

• Uniform coverage throughout the room (no dead spots in the middle of the room)
• No signal fluctuations when hearing-aid user moves his/her head
• Reduced sensitivity in respect to architecture-related steel reinforcements
• High efficiency, low power consumption
• 19“ design
• Well suited for retrofitted installation in theatres, cinemas, concert halls, schools, conference rooms, housing, etc. (Possible for floor reconstructions only)

Mains connection: 230-240 V AC 50 Hz, 25-700 W

Coverage: 300 m² acc. to IEC 60118-4

Induction loop output

Max. power: 2 x 4 A RMS, short-circuit-proof

Max. voltage: 47 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 range: 100 - 5000 Hz ( ± 3 dB)

Distortion: < 1%

Cable connection: 2 screw connections on rear panel of the amplifier

Outputs

Master OUT: 0 dBm, RCA (with AGC function)

Slave OUT: 0 dBm, RCA (with AGC function)

Inputs

IN 1: 

Combined XLR / 6.35 mm connector

MIC sensitivity 2.5 mV – 10V RMS / 10 kOhm,

LINE sensitivity 37 mV – 10V RMS / 10 kOhm

or phantom voltage 9 – 20 V

IN 2:

Dual RCA connections, 45 mV – 10V RMS / 10kOhm

IN 3:

Dual RCA connections, 45 mV – 10V RMS / 10kOhm

AGC

Dynamics: > 70 dB

Rise time: 2 - 500 ms

Fall time: 0.5 – 20 dB/s Rise and fall times depend on the currently active channel

Controls and displays

Loop setting: 0 – 300m² (with one potentiometer each for master and slave outputs)

Input level: IN 1 and IN 2 can be adjusted separately

Displays

Mains connection: 1 green LED

Input level: 1 green LED

Induction loop power: 2 green LED

Induction loop monitoring

Two 6.3 mm jacks for headphone connection

Enclosure

Dimensions (H x W x D): 88 x 438 x 280 mm

Colour: black

Weight: 9,3 kg

• Mains connection: 230-240 V AC 50 Hz, 25-700 W
• Coverage: 300 m² acc. to IEC 60118

• Induction loop output
• Max. power: 2 x 4 A RMS, short-circuit-proof
• Max. voltage: 47 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 range: 100 - 5000 Hz ( ± 3 dB)
• Distortion: < 1%
• Cable connection: 2 screw connections on rear panel of the amplifier

• Outputs
• Master OUT: 0 dBm, RCA (with AGC function)
• Slave OUT: 0 dBm, RCA (with AGC function)

• Inputs
• IN 1: 
• Combined XLR / 6.35 mm connector
• MIC sensitivity 2.5 mV – 10V RMS / 10 kOhm,
• LINE sensitivity 37 mV – 10V RMS / 10 kOhm
• or phantom voltage 9 – 20 V
• IN 2:
• Dual RCA connections, 45 mV – 10V RMS / 10kOhm
• IN 3:
• Dual RCA connections, 45 mV – 10V RMS / 10kOhm
• AGC
• Dynamics: > 70 dB
• Rise time: 2 - 500 ms
• Fall time: 0.5 – 20 dB/s Rise and fall times depend on the currently active channel

• Controls and displays
• Loop setting: 0 – 300m² (with one potentiometer each for master and slave outputs)
• Input level: IN 1 and IN 2 can be adjusted separately

• Displays
• Mains connection: 1 green LED
• Input level: 1 green LED
• Induction loop power: 2 green LED
• Induction loop monitoring
• Two 6.3 mm jacks for headphone connection

• Enclosure
• Dimensions (H x W x D): 88 x 438 x 280 mm
• Colour: black
• Weight: 9,3 kg

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