PROFESSIONAL CLASS-D LOOP AMPLIFIERS

The Opus Technologies LD1.2 is next-generation low-loss magnetic loop amplifiers witch incorporates two independent amplifiers out of phase.
It provide an output current of 2x5Arms as well as a AGC to ensure optimum audio quality. The amplifier incorporate a fault synthesis that controls contiuously 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 tow 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 which makes it possible to limit the distortions due to the presence of metal.


TECHNICAL DATAS:


Coverage max: single loop 600m² (15x40m²)
Coverage max: multiloop 400m² (10x30m²)

INPUT
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
Priority 100V, input 1

POWER SUPPLY
Type Integrated
Voltage 115/230Vac (automatic) 50/60Hz
Power 400VA
Idle consumption 9W

AUDIO CHARACTESRITICS
THD <0,5% at 1ohm /1KHz / full current
Automatic Gain Control AGC optimized for speech, dynamic > 36dB
Bandwidth 80Hz to 9,5KHz
Phase change Included

OUTPUT
Loop impedance 0,5O to 3O
Output voltage 34Vrms (48Vpk)
Peak current (at 1KHz) 2x5Arms
Peak current 2x8A

FUNCTIONS
LED displays Power, Protect, Clip and Correct Loop
Metal loss correction Adjustable from 0 to 3dB/octave
Relay NO/NC fault relay

DIMENSIONS
HxLxD 42 x 200 x 215mm
Weight 1,2 kg