LD2.0

The Opus Technologies LD2.0 is the next-generation perimeter magnetic loop amplifier. The 7-side continuous output and all necessary functions (AGC, MLC, etc.) provide for installation in spaces of up to 450 m².

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Additional description

The amplifier incorporates an error synthesis that continuously controls the loop and amplifier. The information is displayed on the front panel and can be deported with 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). The solution is used for equiping large rooms or adjoining spaces (hairpin systems).

The proven LD2.0 technology and manufacturing quality provide 5 years of warranty.

Advantages

Class D amplifier
Ultra compact design
Total efficiency up to 92%
Fanless convection
Hight output voltage up to 48 Vpk
Automatic gain control
Metal loss correction
Wall-rounding attachment
Continuous loop monitoring with NO-NC relay
5 years warranty

Technical specifications

Coverage	450 m² (15*30 m²)
Operating temperature	0 to +45°C
Storage temperature	-30 to +70°C
INPUT
Audio inputs	3 inputs: x2 line/microphone, x1 100 V
Connector type	Phoenix and/or Combo Neutrik
Phantom supply	12 V 2 mA
Sensitivity	-50 dB microphone, +40 dB 100 V, -10 dB line
Priority	100 V input, INPUT 1
POWER SUPPLY
Type	Integrated
Voltage	115/230 V (automatic) 50/60 Hz
Nominal power consumption at 1 Ohm	50 W
Maximum input power	<300 VA
Consumption at rest on connected loop	9W at 230 V AC, 1 loop of 1 Ohm connected, at ambient temperature after 30 minutes of stabilisation
AUDIO CHARACTERISTICS
THD	<0.5% @1 ohm / 1 KHz / nominal currentk
Automatic gain control	AGC optimized for speech Dynamic> 36 dB
Bandwidth	80 Hz to 9.5 kHz at -3 dB
OUTPUT
Loop impedance	0.5 Ω à 3 Ω
Output voltage	34 V rms(48 V pK)
Peak current	11 A pK
RMS current	7 A rms
0°or 90°phase shift
ADDITIONAL FUNCTIONS
LED display	“Power”, “Protect”, “Clip”, “Loop”
Metal loss correction	0 to 3 dB per octave
Relay	NO/NC fault relay 0.5 A / 125 VAC, 1 A / 24 VDC
DIMENSIONS (MM)
HxLxD	42 x 200 x 215 mm
Weight	1.48 kg