http://www.audioropa.com/en/products/induction-loop-systems/pro-loop-nx7/

Loop amplifier Pro Loop NX7

Like all AUDIOropa loop amplifiers of the Pro Loop NX series, the Pro Loop NX7 is primarily designed for continuous use. The integrated switching power supply and the Class-D amplifier design enable high efficiency and low waste heat. Among other things, this results in the high reliability and operational safety of the systems.

The function of the heainduction loop and the amplifier is continuously monitored. A functional error is signalled via displays on the unit and at the error output.

  • Automatic Gain Control (AGC) ensures a consistent level on the listening loop.
  • Metal Loss Correction (MLC) can be used to correct the frequency response due to metal structures.
  • Link connections allow several amplifiers to be combined into one unit.
  • The output signal can be monitored via a headphone output.
  • A fixable cover prevents the settings from being altered by accident.

Essential features

  • 7 A RMS
  • 34 V RMS
  • 3 mixable inputs
  • 48 V Phantom power
  • 100 V Priority input
  • Link Connections for setting up larger systems
  • Cover plate to protect the settings

Technical details

Power supply: 110 - 265 V AC 50/60 Hz
###Amplifier output  
Loop current max.: 7 A RMS
Loop voltage max.: 34 V RMS
Frequency range: 80 - 6000 Hz (± 1,5 dB)
Loop resistance DC: 0,5 - 3,0 Ω
###Outputs  
Headphones: 3,5 mm Stereo jack socket
Link connections: 6,3 mm Jack socket, symmetrical
Status connection: 3 pol. Euroblock plug
Connection: NL4 Speaker Twist, assignment 1+ parallel to 2+/1- parallel to 2-
###Inputs  
Input 1: 5-100 mV / 2 kΩ / 48 V switchable (MIC)***100 mV - 6 V / 10 kΩ (LINE)***Switchable between mic and line level, combo jack
Input 2: 5-100 mV / 2 kΩ / 48 V switchable (MIC)***100 mV - 6 V / 10 kΩ (LINE)***Mic and line level, switchable, 3-pin Euroblock plug
Input 3: 100 V priority input, 2 pole Euroblock plug
Link in: 6,3 mm Jack socket, symmetrical
###Automatic Gain Control (AGC): voice-optimised  
Dynamic range: >40 dB
###Metal Loss Correction (MLC)  
MLC: 0 - 4 dB/Octave
###Cooling  
Type: fanless
###Mechanical specifications  
Dimensions (H x W x D): 43 x 430 x 290 mm, 19“ 1HE
Weight: 3.72 kg
Pro Loop NX7