SIGNET AFILS LOOP AMPLIFIER SYSTEMS - Phase shifting, desktop
Signet’s PRO series of phase-shifting, Class D induction loop amplifiers have been designed and manufactured in the UK to suit areas up to 1000 square metres such as meeting rooms, offices, churches, classrooms, or theatres.
Available as desktop amplifiers, or wallmount amplifiers, see SIGNET AFILS LOOP AMPLIFIER SYSTEMS - Phase shifting, wallmount; PRO5, PRO7, and PRO11 constant current amplifiers feature phase-shifting technology to give consistent coverage with low chance of dead spots, and minimal overspill. An OLED display along with four membrane control buttons aids navigation and easy setup, whilst also giving clear indication of operation and fault status.
All models have the same front panel functionality, and rear panel connectivity including 2x selectable mic/line inputs on 3-pin XLR, 1x outreach input via 4-way Phoenix connector for connection to up to ten compatible outreach plates, see SIGNET AFILS LOOP AMPLIFIER SYSTEMS - Accessories - Outreach Plates; loop output on 4-way binding posts, and line output on 3-way Phoenix connector. There is also a 3-way Phoenix connector for fault relay, and a ‘Toslink’ optical input for connection to devices such as TV or sound bar. A single mains IEC connector is also positioned on the rear panel.
Input sensitivity: -20dBU typical, line; -42dBU typical, mic. Outreach input sensitivity: 0dBU. Outreach input impedance: >10k. Outreach power: 24V DC, 100mA max. Optical: TOS link up to 24-bit, 96kHz sampling. Loop output voltage: 14V. Drive current at 1ohm: 2x 3.25A, PDA5; 2x 5A, PDA7; 2x 7.5A, PDA11. Line output: 775mV. Metal compensation: up to 10dB. Frequency response: 100Hz – 5kHz, -3dB. Distortion: Less than 1%. Signal to noise: Better than -65dB. AGC range: 10dB, 3dB change in output voltage current. AGC ratio: 20:1. IP rating: IP40. Dimensions (HxWxD): 67 x 218 x 280mm. Weight: 2.38kg.