Et300 Induction Loop Drivers For Mac
- Et 300 Induction Loop Drivers For Mac
- Et300 Induction Loop Drivers For Macbook Pro
- Induction Loop Assistive Listening System
- Induction Loop Amplifier
- 3: Loop Connector. The loop connects to the amplifier using this 2-part screw connector- allowing the loop to be terminated without the amplifier being present. The Ideal DC resistance of the loop should be around 1Ω (the impedance of the loop at 1.5KHz should always be below 2Ω for correct operation to IEC118-4).
- Induction loop drivers are selected for their current output which varies according to the size of the room or area that needs to be covered. The smaller the area the greater likelihood that a small desk microphone to pickup audio will be provided as part of a kit.
- The ET300 is designed to cover areas up to 450m 2 and be connected to professional microphones and line sources. ET 300 Front View. All the controls on the ET300 are screwdriver adjustable to prevent tampering.
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The CLD1 Compact Loop Driver is designed for counter systems and small area perimeter loop systems. Ampetronic ILD20 Induction Loop The ILD20 is a high performance, local area loop driver backed by a 5 year warranty and free technical support.
Details
The Current Thinking ET450 professional audio frequency induction loop amplifier (AFILS) provides assistive hearing coverage up to 800m² (for a rectangular room) or 450m² (for a square shaped room).
This induction loop amp has 3 XLR inputs; 2 dedicated microphones and one microphone / line input, selectable using a rear panel switch.
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User selectable Phantom Power is also available for the microphone inputs, enabled via a rear panel switch.
The inputs are individually mixed before passing to the compressor limiter preventing loop overload and compensating for varying microphone use / technique.
Recessed tamper resistant controls are on the front of the amp along with status indicator LEDs for compression level, output current, loop status and power supply.
Headphones can be used to monitor the actual loop current. An audio output (post compressor) is provided for recording, with a slave audio in to allow cascading.
A 'loop OK' output voltage is provided for an external illuminated sign to show correct loop operation.
The ET450 is 1u (44.5mm) high and a 19' rack mounting kit is available separately.
Choosing the right unit
All In order to remove the 'magic' from loop amplifier specification, Current Thinking recommends loop amplifiers are specified thus; by maximum square area and by length of the shortest side. These areas relate to loops fitted at skirting board or ceiling (2.4m) height and provide even loop coverage. For example, the ET150 will cover a square room 12.25m per side (150m2), however the same amplifier will also cover a rectangular room 10m by 20m (200m2). In this example the ET150 is rated at 150m2 square area and 10m for the shortest side. The shortest side rating is valid for distances up to twice the shortest side, for example the ET450 is rated at 20m shortest side, so the other side of the rectangle can be a maximum of 40m (giving a coverage of 800m2). If the loop is above 2.4m in height, then 20% should be subtracted from the shortest length for every additional metre in height the loop is (to a maximum of 4m). These values do not take into account additional losses present in some building constructions, if you are in any doubt always lay a temporary loop. It is always wise to allow 20% spare capacity when specifying a loop amplifier, just to cover the unknown element.
Disability Discrimination
Where interaction with the general public is required, many British standards and 'Acts' lay down requirements surrounding access to services by people with any kind of disability. Failure to provide 'help with hearing' is discrimination against the deaf or those with a hearing impairment and is therefore an infrigement of those Standards. Correct installation of an audio frequency induction loop amplifier (sometimes referred to as a 'deaf loop') will ensure compliance with all necessary legislation.
In addition to BS7594 (The Code of Practice for Audio Frequency Induction Loop Systems) and EN60118-4 (Magnetic field strength in audio frequency induction loop systems for hearing aid purposes), such standards include: Building Regulations Part M1 : Access to and use of buildings (2004), BS 8300 (2009), The Equality Act (2010), The Human Rights Act (1998), Care Standards Act (2000) and The English Tourism Council’s National Accessible Scheme.
Additional Information
1u free standing, 3 XLR inputs (2 mic, 1 mic /line) AFILS amplifier, with loop monitor, loop current indication, compressor limiter, mixer and output drive recessed controls. Covers a square room 21.2m per side (450m²) up to a rectangular room 20m by 40m (800m²). Output current >9.5A |
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Et 300 Induction Loop Drivers For Mac
| Current Thinking ET150, ET300, ET450 Induction Loop Amps Size: (1.14 MB) |
Current Thinking ETRM Rack Mounts for ET150 / ET300 / ET450 | Signet FPROK1 Loop Listener / Induction Loop Tester Kit |
Et300 Induction Loop Drivers For Macbook Pro
Induction Loop Assistive Listening System
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