The Opus Technologies LD2.2 is next-generation, low-loss magnetic loop amplifiers. This device incorporates two independent amplifiers out of phase.
They provide an output current of 2x7Arms, as well as a AGC to ensure optimum audio quality. The amplifier incorporate 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.
It can equip adjoining rooms (amphitheater, courtroom, etc) with two magnetic loops installed hairpin. This type of installation makes it possible to limit the external radiation of the magnetic field, to guarantee uniformity of coverage and to provide a power wich makes it possible to limit the distortions due to the presence of metal.
The LD2.2 proven technology and quality of manufacturing allow us to offer a 5 years warranty.
- Class D amplifier
- Ultra compact design
- Total efficiency up to 92%
- Fanless convection
- Hight output voltage up to 48Vpk
- Automatic gain control
- Metal loss correction
- Wall rounting attachment
- Continuous loop monitoring with NO-NC relay
- 5 years warranty
|Coverage max: single loop||1200m² (20x60m²)|
|Coverage max: multiloop||525m² (15x35m²)|
|Audio input||3 differencial inputs: 2x line/microphone and 1X 100V|
|Connector type||Phoenix and/or Combo Neutrik|
|Phantom supply||12V 2mA|
|Sensitivity||-50dB micro, +40dB 100V, -10dB line|
|Slave input||6,35 mm jack plug, second LD2.2|
|Priority||100V, input 1|
|Voltage||115/230Vac (automatic) 50/60Hz|
|THD||<0,5% at 1ohm /1KHz / full current|
|Automatic Gain Control||AGC optimized for speech, dynamic > 36dB|
|Bandwidth||80Hz to 9,5KHz|
|Loop impedance||0,5Ω to 3Ω|
|Output voltage||34Vrms (48Vpk)|
|Peak current (at 1KHz)||2X7Arms|
|LED displays||Power, Protect, Clip and Correct Loop|
|Metal loss correction||Adjustable from 0 to 3dB/octave|
|Relay||NO/NC fault relay|
|HxLxD||42 x 200 x 215mm|