The loop amplifier ISV1090 is a newly developed product made by axxent. This type of amplifier powers induction loops inside rooms – either in the floor or in ceilings. This induces an induction into the air between the outer borders of the cable loops. Reception loops are built into most hearing aids. The audio signal from the induction loops is drastically better for the hearing impaired than the purely acoustic signal. This is because of the broad frequency spectrum fed into the loop, without room reflections, plus the compression used in the amplifier that enables the hearing impaired to hear low level music or speech.
The ISV1090 not only is a universal loop amplifier for almost all room sizes (jumpers inside to adjust to four different power outputs), but has three possible operation modes: Single unit use, coupled with another unit to feed multiple loops and mixing all inputs and the use with another unit in Master/Slave mode to feed socalled low spill-over loops. The latter needs to plug in a 90° phase shifter module into the master unit.
Features
- For induction loops of widely varying sizes
- Two balanced XLR microphone inputs
- Phantom power switchable
- Line input with Eurobloc connector and 24 VDC for external mic/line amplifiers
- Built-in compressor
- Metal correction potentiometer
- Drive potentiometer
- 3.5 mm connector for headphone monitoring
- IEC power connector with 2 A fuse, slow blow
- All potentiometer knobs may be removed and covered by blinds to avoid mis-adjustment by unqualified users
- IEC power connector with 2 A fuse, slow blow
- Amplifiers may be used in parallel mode also. This also allows to mix the inputs of all amplifiers
- Master – induction loop amplifier with another unit as SLAVE and inserted 90° phase shifter module into the master unit (C, D or E)
- Phase shifter module PSM90 may be obtained from axxent
