The Opus Technologies LD2.0 is the next-generation perimeter magnetic loop amplifier. The 7-arms continuous output and all necessary functions (AGC, MLC, etc.) provide installation in spaces of up to 450m².
The amplifier incorporates a fault synthesis that continuously controls the loop and amplifier. The information is displayed on the front panel and can be deported with a dry touch.
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 the equipment in large rooms or adjoining spaces (hairpin systems).
The LD1.0 proven 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 do +45°C |
| Storage temperature | -30 do +70°C |
| INPUT | |
| Audio inputs | 3 inputs: x2 line/microphone, x1 100 V |
| Connector type | Phoenix and/or Combo Neutrik |
| Phantom supply | 12V 2mA |
| Sensitivity | -50 dB microphone, +40 dB 100 V, -10 dB line |
| Priority | 100V 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 | <300VA |
| Consumption at rest on connected loop | 9W at 230V AC, 1 loop of 1 Ohm connected, at ambient temperature after 30 minutes of stabilization |
| AUDIO CHARACTERISTICS | |
| THD | <0.5% @1 ohm / 1 KHz / nominal currentk |
| Automatic gain control | AGC optimized for speech Dynamic> 36dB |
| Bandwidth | 80 Hz to 9.5 kHz at -3 dB |
| OUTPUT | |
| Loop impedance | 0,5Ω à 3Ω |
| Output voltage | 34V rms(48V pK) |
| Peak current | 11A pK |
| RMS current | 7A 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 0,5A/125Vac, 1A/24VDC |
| DIMENSIONS (MM) | |
| HxLxD | 42 x 200 x 215 mm |
| Weight | 1,48 kg |
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