Inductive loop amplifiers are a must for modern PA installations to give equal access to information and announcements to people with hearing disability by transmitting audio signals to hearing aids fitted with a "T" switch. Designed to compliment the Adastra 900 series mixer amplifiers and are ideal for use in churches, theatres, conference rooms, museums and waiting rooms etc. Features: Each channel accepts input via XLR, 6.3mm Jack or RCA phono; Inputs switchable between mic and line with optional phantom power +40Vdc; Built-in siren for evacuation alert; Tamper proof channel volume, bass & treble and loop current level controls; Peak current LED indication; AGC (automatic gain control); 19" rack mountable. Spec: Frequency response: 50Hz - 5kHz±3dB.; Input sensitivity : Line: -6dBu/6k ohms; Input sensitivity : Mic: -56dBu/2k ohms; Power: 230Vac, 50Hz, (150W); Signal to noise ratio: 75dB (line), 60dB (mic); THD: <1%; Dimensions: 430 x 280 x 88mm (2U); Weight: 7.2kg.