XL-150M

• AGC indicated by a LED
  
• 3 microphone inputs
  
• Prepared for wireless microphone receiver
  
• 3-band graphic equalizer
  
• 3 LED's for proper control of loop current
  
• Override function
  
• Voltage output to supply external signal device
  
• Trig Input for already existing doorbell, telephone etc
  
• Tone indication via loop
  
• Connector of PLUG-IN type
  
• Modern design
  

The XL-150M is a loop amplifier constructed for loop areas up to 150 sqm. It is equipped
with 3 microphone inputs designed for dynamic and electret/condenser microphones. One of the MIC
inputs can easily be modified for a wireless microphone receiver. This input is also fitted out with an
OVERRIDE function with adjustable sensitivity and decay.

The XL-150M can be connected to TV, radio and tape recorder which means that it is
very suitable for education purposes in schools, assembly halls, churches etc. The amplifier is also
supplied with voltage output for external signal systems. There is also a trig input and a tone indication
via the loop. All this together makes the XL-150M very useful in many different applications
both in private and public areas.

TECHNICAL DATA

Power supply:       230 V  50 Hz
Coverage:           150 sqm

AUDIO INPUTS
MIC 1:              0.5 mV-40 mV/600 ohm
Tuner:              15 mV-10 V/600 ohm
MIC 2:              0.5 mV-40 mV/600 ohm
MIC 3:              0.5 mV-40 mV/600 ohm
(LINE)              35 mV-3.5 V/600 ohm
IN 1-2:             35 mV-10 V/430 ohm/200 Kohm
All MIC inputs are electronically balanced
12V DC phantom voltage, switchable via internal switch

AUDIO OUTPUTS
LOOP OUT, current:  8.3 A RMS/1 ohm (125 ms)*
LOOP OUT, voltage:  14.6 RMS/18 ohm (125 ms)*
LINE OUT:           775 mV (0 dB)/600 ohm
Frequency response: 125 Hz-5 KHz (ñ 3 dB)
S/N ratio:          > 60 dB

Equalizer
LOW:                ± 9 dB/50 Hz
MID:                ± 9 dB/800 Hz
HIGH:               ± 9 dB/12 KHz

AGC
Range:              > 70 dB
Attack time:        5 ms
Decay time:         6 dB/s

OVERRIDE FUNCTION
Sensitivity:        0.4 mV*
Attack time:        45 ms
Decay time:         0.2-6 s
*Input on MIC 1, maximum sensitivity

IN- OUTPUTS FOR DOORBELL AND TELEPHONE
Voltage:            13 V/max 1.6 A
Trig input:         4-24 V AC/DC
Tone indication:    1100 Hz

Approved according to the SEMKO Nordic Test specifications. Also -approved

* Measurements carried out in accordance with Nordic Test Method. Due to active time dependent
signal processing, the loop amplififer cannot be measured during continuous operation.