Extended News :: Induction Loops
There are two types of system for people who have hearing difficulties. The induction loop system and the infrared system.
An induction loop system consists of a sound source (microphone and/or PA system), a special loop amplifier and a wire that goes around a room - in a loop. A magnetic field is created within the loop and the signal is picked up by the coil inside a hearing aid when it's switched to the 'T' setting. More information about induction loops and hearing aids can be found on the RNID (Royal National Institute for the Deaf) website.
Induction loop systems are installed by Crystal Clear Audio either as part of a PA system installation or as a separate project. The installation is made as discrete as possible by running cable under carpet or by using a colour of cable that best suits the decoration. There are a few items included in our quotes as standard options :
- Loop receiver - a small listening device with walkman-style headphones, useful to ensure the system is functioning. It works in a similar way to a hearing aid with a 'T' switch. The ILR3 is manufactured by Ampetronic.
- Boundary microphone - a discrete
microphone (see picture) especially for the loop system to pick up
background sound. This would include congregational singing and
non-mic'ed instruments (eg. church organ). A system without
an ambient microphone can be quiet and lifeless when normal
microphones are turned off.
Induction loop systems (amplifiers, cabling and associated labour) supplied to a charitable institution qualify for zero-rated VAT. All that is needed is a signature from a senior person in the organisation (eg. vicar, minister) on a Customs and Excise form (ref. annex E - VAT Notice 701/7). Download our exemption form (PDF format).
For more information please refer to the Customs and Revenue website.
Alternatively, you can have a look at the scanned documents below. These have been received from Customs and Excise over the years either directly to us or via our customers (personal names and addresses have been removed).
- General ruling and definition (PDF format) - "designed solely"
- A second ruling (PDF format) - "charitable institution"
If you would like further information, please contact us.
Boundary microphone