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953.163UK User Manual
Specifications
Power supply
110-230Vac, 50/60Hz (IEC)
Output power
2 x 120Wrms
Audio source
USB/SD/FM/BT audio player
Bluetooth version
2.0
Inputs
1 x mic (XLR), 2 x mic/line (6.3mm jack), 2 x line (twin RCA)
Input impedance
1kΩ (mic/line)
Input sensitivity
-11dB (line), -46dB (mic)
Zone outputs: line
2 x RCA
Zone outputs: speaker
2 x terminal outputs 100V/8 ohms/4 ohms/com
Zone controls
Bass, Treble, Master volume
Phantom power
+20V switchable to Mic.1 XLR
Frequency response
100Hz - 20kHz
THD
<0.76% @ 1kHz
SNR
84dB (line), 82dB (mic)
Dimensions
433 x 88 x 320mm
Weight
11.24kg
Troubleshooting
No power LED on control panel
Ensure IEC lead is in good condition and connected properly
Ensure that the voltage selector is switched to the correct value for the supply
Ensure POWER switch is on and check mains inlet fuse
Power LED is on but no other LEDs and no
output
Check input signals and condition of input connection leads
Check that the selected zone output is assigned on the active input channel
Ensure that Zone Master, Mic, Line or media player volume controls are turned up
Power light and zone indicator LEDs
lighting but no output
Check speaker output terminals are connected correctly
Check speakers are working (test on another amp if available)
LCD display on audio player is not lit
If main power is on, press and hold the Mute button until the display is lit
No output from audio player
Ensure that Mute function is off and volume is not set too low (press and hold “˄”)
Check that Mic.1 priority is not overriding playback
No playback via Bluetooth
Ensure that the sending device is paired and connected as audio to the correct device
Check the playback status and volume setting of sending device
USB/SD player will not play audio from
media
Press Play/Pause button to ensure track is not paused
Press the Source button to ensure that the required device is selected
Check memory device is connected properly (remove and re-insert)
Check file types – standard compressed digital audio files are required
Check memory device works on a PC or Mac for standard playback
Output is very loud or distorted
Check level of input signal is not too high
Reduce level control for Mic, Line or media player input
Reduce any boost to Bass or Treble and reduce Master volume control if needed
Output is working but at very low level
Check input audio source level is not too low
Increase Master volume and input channel controls and remove any Bass or Treble cut
Check for quiet recording of media files on USB/SD/BT devices
Check Mic.1 priority is not unintentionally suppressing other channels
No microphone output
Check phantom power is enabled if using condenser microphones
Amplifier overheating
Ensure cooling vents are clear from debris and dust
Check that 4Ω or 8Ω speakers are not connected to 100V terminals
Ensure total 100V speaker wattage is lower than the max rating for any zone
Ensure that 100V and 8Ω speakers are not connected simultaneously
Ensure that total load connected to 4Ω or 8Ω output is not less than stated
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.
Hereby, AVSL Group Ltd. declares that the radio equipment type 953.163UK is in compliance with Directive 2014/53/EU
The full text of the EU declaration of conformity is available at the following internet address: http://www.avsl.com/assets/exportdoc/9/5/953163UK%20CE.pdf
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
.