Opus Technologies LD2.0

The Opus Technologies LD2.0 is the next-generation perimeter magnetic loop amplifier. Continuous 7Arms output current capable and all necessary functionalities (AGC, MLC, etc) ensure rooms installation of 450m².

The amplifier incorporates a fault synthesis that controls continuously the loop and the amplifier. The information is displayed on the front panel and can be deported thanks to a dry contact.

The LD2.0 can also be used in a low diaphonic phased loop system or an ultra high coverage system with a built-in 90° or 0° phase shift module (2 amplifiers). Solution used for the equipment of large rooms or adjoining rooms (hairpin systems).

The LD2.0 proven technology and quality of manufacturing allow us to offer a 5 years warranty.

Last modified: April 14th, 2019
Coverage450m² (15x30m)


Audio input3 differencial inputs: 2x line/microphone and 1X 100V
Connector typePhoenix and/or Combo Neutrik
Phantom supply12V 2mA
Sensitivity-50dB micro, +40dB 100V, -10dB line
Priority100V, input 1


Voltage115/230Vac (automatic) 50/60Hz
Idle consumption6W


THD<0,5% at 1Ω /1KHz / full current
Automatic Gain ControlAGC optimized for speech, dynamic > 36dB
Bandwidth80Hz to 9,5KHz


Loop impedance0,5Ω to 3Ω
Output voltage34Vrms (48Vpk)
Peak current11A
Peak current (at 1KHz)7Arms
Slave output0° or 90° phase shift


LED displaysPower, Protect, Clip and Correct Loop
Metal loss correctionAdjustable from 0 to 3dB/octave
RelayNO/NC fault relay


HxLxD42 x 200 x 215mm
Weight1,2 kg