One microphone / line input, one priority input (100 V) u,

 optional frequency range and tone control, u limiter and automatic gain control (AGC) u can be integrated with systems conforming to en 54 ￣ 16 and en 60849. The pin-1la10 loop amplifier is an economical amplifier designed to drive wire loops installed in floors or ceilings. Each amplifier can cover up to 600 square meters. This solution enables hearing aid users located in the enclosed area of the wire loop to hear all radio or music. Hearing aid users can set their device to mode t to receive signals from the loop. They can listen to radio with excellent sound quality, and there is no background noise or echo that normally prevents hearing-impaired people from hearing clearly. The basic function loop amplifier can be connected to the line level output of the hybrid amplifier, or it can directly receive up to two microphone / line input signals. The 100 V priority input can be used for uplink connection to the plena voice alarm system. By monitoring this input, the presence of pilot tones can be determined. The built-in monitoring equipment monitors all the main functions of the loop amplifier, while the fault protection relay can provide fault status. This allows users to use loop amplifiers in systems that comply with IEC 60849 and include inductive loops in the monitoring transmission path. In order to improve the comfort, the loop amplifier is equipped with a radiation limiter, which can keep the output field strength below the preset 100 mA / m. In addition, the circuit can be set to automatic gain control (AGC) mode, so as to weaken the strong signal and enhance the weak signal to improve the clarity. This ensures that all information is broadcast at a comfortable volume level. The device is equipped with tone control and metal loss compensation circuit, which can adjust the sound according to the sound transmission material and environment. These controls can be locked to prevent unauthorized changes after adjustment. Loop amplifiers can be stacked (primary / secondary configuration) to cover large areas and support low overflow schemes. Its unique square configuration can even provide uniform field strength through multiple loops. Front of controller and indicator light · LED power meter · ammeter · 4 LED indicator lights for fault, limiter, AGC and loop integrity · headphone socket · 2 tone controls · 3 input volume controls (main channel and two channels) · back of switch · metal loss compensation control · monitoring switch · voltage selector · frequency range switch · AGC / limiter switch · AGC range control · VOx / hybrid switch · front / rear amplifier switch · two phantom power switches · two microphone / line switches interconnect back side · main input · two auxiliary outputs

Sales telephone (same number of wechat): 13428785305 QQ: 2461903042