Opus Technologies LD1.0 Rackable Loop Amplifier

The Opus Technologies LD1.0 is a superb Rackable Loop Amplifier, in addition to the smallest model of the single output magnetic Loop Amplifier range. A continuous output current, and all the necessary functionalities (AGC, MLC, etc.) ensure the seamless installation of rooms measuring up to 250m².

The LD1.0 incorporates a highly efficient class-D Amplifier that guarantees maximum power for small to medium-sized rooms. The device itself contains 3 inputs: 2 switchable line or microphone and a priority 100V. A fault synthesis is also included, allowing control of the Loop & Amplifier. It’s important to note, that the information displayed on the front panel can be deported thanks to a simple contact.

Product Features

• Class-D amplifier
• Fanless convection
• Metal loss correction
• Automatic gain control
• Continuous loop monitoring with NO-NC relay

Product Specifications

Additional:

• Coverage: 250m² (10*25m²)
• Operating Temperature: 0 to +45°C
• Storage Temperature: -30° to +70°C

Input:

• Phantom Supply: 12V 2mA
• Priority: 100V input, INPUT 1
• Connector Type: Phoenix and/or Combo Neutrik
• Audio Inputs: 3 inputs: x2 line/microphone, x1 100V
• Sensitivity: -50dB microphone, +40dB 100V, -10dB line

Power Supply:

• Type: Integrated
• Nominal Power: 25W
• Maximum Input Power: <250VA
• Voltage: 115/230V (automatic); 50/60 Hz
• Consumption At Rest: 9W at 230V AC, 1 loop of 1Ω connected; ambient temperature after 30 minutes of stabilization

Audio Characteristics:

• THD: <0.5% @ 1Ω / 1KHz
• Bandwidth: 80 Hz to 9.5 kHz @ -3 dB
• Automatic Gain Control: AGC optimized for speech (dynamic > 36dB)

Outputs:

• Peak Current: 8A pK
• RMS Current: 5A rms
• Loop Impedance: 0.5Ω
• Output Voltage: 34V rms (48V pK)
• Slave Output: 0° or 90° phase shift

Functions:

• Metal Loss Correction: 0 to 3 dB per octave
• LED Display: «Power», «Protect», «Clip», «Loop»
• Relay: NO/NC fault relay; 0.5A/125Vac, 1A/24VDC

Dimensions:

• Weight: 1.48 kg
• Dims: 42 mm H x 200 mm L x 215 mm D