SoundFields products - VL1 12V Vehicle Induction Loop Amplifier
View details on the VL1 12V Vehicle Induction Loop Amplifier below or download the specification sheet.
Specification Sheet
Download the VL1 12V Vehicle Induction Loop Amplifier specification sheet
SigNET's new VL1 induction loop amplifier is specifically designed to help hearing aid users communicate more effectively in cars, taxis, buses and other motor vehicles.
Timed to coincide with the Disability Discrimination Act's new 'Provision and use of transport vehicles supplement' (published December 2006), the amplifier includes two 3.5mm jack inputs (microphone and line), both with their own level controls, and a metal compensation feature which can be used to offset the frequency problems associated with running an induction loop close to metal.
Two kitted versions are available. The VL1/B1 12V kit includes a VL1 amplifier, fused cigarette lighter adaptor, a pre-formed loop capable of generating a loop listening field of 1.2m2 (typically positioned in a vehicle's roof lining or under a seat) and a microphone. A 24V version of the kit (the VL1/B2) is also available.
Measuring just 120mm wide, 31mm high and 60mm deep, the VL1 is ideal for dashboard mounting. It includes three indicators - Peak, Limit and Power On – and meets or exceeds the requirements of BS7594 and EN60118-4 when correctly installed.
Features
- Ideal for cars, taxis, buses and other private/commercial vehicles
- Generates a loop listening field of approximately 1.2m2
- Available in two kit formats
- VL1/B1 12V kit includes:-
1 x VL1 amplifier
1 x TX2 pre-formed loop
1 x AMT microphone
1 x AL8 fused cigarette lighter power adaptor
1 x 'AFILS' fitted sticker - The VL1/B2 24V kit includes:-
1 x VL1 amplifier
1 x TX2 pre-formed loop
1 x AMT microphone
1 x 24V to 12V convertor
1 x AL7 2.5mm DC power plug to bare ended lead
1 x 'AFILS' fitted sticker - Compact amplifier ideal for dashboard mounting
- Optional VL9 lead available for connecting the amplifier's line input to a vehicle's audio system
- Includes one 3.5m microphone input and one 3.5mm line input
- Metal compensation control helps offset the frequency response problems associated with vehicle loops
- User-adjustable drive, mic level and line level controls
- Includes Power On, Peak and Limit indicators
- Fully compliant with BS7594 and EN60118-4 when correctly installed
Specifications
| Specification | Value |
|---|---|
| Input voltage | |
| Rated supply voltage and current | 12V DC |
| Rated power consumption | 500mA |
| Inputs | |
| Microphone | |
| Input connector | 3.5mm stereo jack |
| Input Impedance | 1kΩ |
| Input voltage | -60dB |
| Line | |
| Input connector | 3.5mm mono jack |
| Input impedance | 100kΩ |
| Input voltage | -27dB stereo unbalanced |
| Output | |
| Type | Current mode |
| Loop connector | 2-way push terminal |
| Cable | Use the TX2 pre-formed loop supplied in our VL1/B1 and VL1/B2 kits |
| Loop coverage | 1.2m2 (using the TX2 pre-formed loop) |
| Maximum RMS output current | 1A |
| Maximum peak output current | 2A |
| Maximum RMS load voltage | 4V |
| Performance | |
| Total harmonic distortion | 40Hz to 8kHz |
| Frequency response –1dB | 36dB |
| Frequency response –3dB | <0.5% THD |
| Signal to noise ratio | 60dB A weighted (reference maximum RMS current, maximum gain) |
| AGC range | 3dB change in output current, reference rated input voltage: 10dB |
| Indicators & Controls | |
| LED indicators | Power LED, Limit LED, Peak LED |
| Controls | Mic Level control, Line Level Control, Metal Compensation Control, Drive current control |
| Dimensions & Weight | |
| W x H x D (VL1 amplifier only) |
120mm x 31 mm x 60 mm |
| Weight | 220g (amplifier only) |
