Mobile Loop System with Case

The Opus Portable Induction Loop Kit with Wireless Microphone LDP1.0M brings together an LD1.0 amplifier, OP-LRM loop receiver, OP-8TH portable microphone, OP-10SRX fixed wireless receiver and 100 metres of connection cable in a storage suitcase. It provides a transportable assisted listening solution for meetings, presentations, training sessions and events where a permanent loop installation is not available.

The LD1.0 amplifier drives a single induction loop, delivering audio to compatible telecoil-equipped hearing aids. Opus specifies indicative coverage of up to 250 m², subject to room geometry, listening height and surrounding metal. The loop layout should be planned for each venue and its performance checked before use.

The supplied OP-8TH microphone and OP-10SRX receiver provide a UHF wireless audio connection, allowing a presenter to speak without a microphone cable running back to the amplifier. Both devices operate in the 863–865MHz range with 16 selectable channels. The microphone offers on/off, channel selection and mute controls, while the receiver provides channel selection and volume adjustment.

The amplifier also offers two switchable line or microphone inputs and a priority 100V input for connection to suitable external sound equipment. It delivers 5A RMS output current at 1kHz, with automatic gain control to help manage variations in source level.

Adjustable metal loss correction supports setup where nearby metal affects loop performance. Front-panel indicators show power, protection, clipping and loop status, while an NO/NC fault relay provides an output for external fault monitoring.

The storage suitcase keeps the main components together between locations. Although the kit is portable, the amplifier requires a 115/230V AC mains supply. Installers should allow time to lay out the cable, connect the audio equipment and check the listening area at each setup.