LD1.0

The Opus Technologies LD1.0 is a small model of the single output magnetic loop amplifier line. The 5-side continuous output current and all necessary functionalities (AGC, MLC, etc.) ensure installation in spaces of up to 250 m².

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Additional description

The LD1.0 incorporates a high-efficient Class D amplifier that guarantees maximum power for small and mid-size areas. The device has 3 inputs: 2 switchable lines or microphone and a priority 100 V.

The amplifier includes error synthesis that continuously controls the loop and the amplifier. The information is visible on the front panel and can be deported with a simple touch.

The proven LD1.0 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 year warranty

Technical specifications

Coverage	250 m² (10*25 m²)
Operating temperature	0 to +45 °C
Storage temperature	-30 to +70 °C
INPUT
Audio inputs	3 inputs: x2 line/microphone, x1 100V
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	25 W
Maximum input power	<250 VA
Consumption at rest on connected loop	9 W 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 current
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	8 A pK
RMS current	5 A rms
Slave output	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