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952.864UK, 952.867UK User Manual
Specifications
Model
LA-300 mkII (952.864UK)
LA-600 mkII (952.867UK)
Power supply
110/240Vac, 50/60Hz (IEC)
Fuse
T1A 250V
T2A 250V
Area coverage
300m² max.
600m² max.
Frequency response
50Hz - 5kHz (±3dB)
Input sensitivity : line
-6dBu/6k Ohms
Input sensitivity : mic
-56dBu/2k Ohms
Signal to noise ratio
75dB (line), 60dB (mic)
THD
<1%
Rack height
1U
2U
Dimensions
483 x 235 x 44mm
483 x 235 x 88mm
Weight
3.80kg
4.22kg
Troubleshooting
No power indicator when
switched on
Check mains is connected and switched on at the socket
Check that the mains fuse is not blown – refer to qualified service personnel
If the fuse is blown, check that the loop contacts were not shorted out
Peak current indicators are
not showing any signal
Check input connections are OK and that a signal is present on the input
Check that the loop is intact and connected to the amplifier properly
Increase channel level controls and Loop current if necessary
Dead spots within
induction loop field
Check for large metal structures within the architecture close to the loop
Avoid changes in height of the loop cable (running over door frames etc.)
Loop field interfering with
other audio equipment
Ensure that the loop cable is twisted between the loop and the loop amplifier
If necessary, form a cancellation loop to avoid affecting other equipment
Siren activated
Ensure that the alarm contacts are not accidentally shorted out.
Peak indicators mainly
showing overload (red)
Loop current or input levels may be too high, decrease the relevant controls
Check that the loop is not shorted or grounded at any point
Loop current is very low
Increase input signal, channel levels and loop current controls as needed
Poor quality audio from
the loop
If there are metal structures nearby, increase metal loss correction level
Use Bass and Treble controls to help improve intelligibility
Disposal: The “Crossed Wheelie Bin” symbol on the product means that the product is classed as Electrical or
Electronic equipment and should not be disposed with other household or commercial waste
at the end of its useful life. The goods must be disposed of according to your local council guidelines.
Errors and omissions excepted. Copyright© 2021.
AVSL Group Ltd. Unit 2-4 Bridgewater Park, Taylor Rd. Manchester. M41 7JQ
AVSL (EUROPE) Ltd, Unit 3D North Point House, North Point Business Park, New Mallow Road, Cork, Ireland