953.404UK User Manual
Specifications
Power supply
230Vac, 50Hz (IEC)
Power consumption max.
360W
Fuse
F5A, 250V
Output power rms @ 4 Ohms
4 x 200W
Output power rms @ 8 Ohms
4 x 100W
Amplifier: construction
Class D
Frequency response
20Hz - 20kHz ±0.5dB
Microphone inputs
2 x 6.3mm jack (mono)
Line inputs
Line 1: L+R (6.3mm jack/RCA), Line 2: L+R (RCA), Aux (3.5mm stereo)
Input sensitivity: line
0.775Vrms
Input sensitivity: aux
0.480Vrms
Input impedance
20k Ohms (balanced), 10k Ohms (unbalanced)
Audio source
USB/SD mp3 playback, FM tuner, BT receiver
Input controls
Aux, Media, Line1, Line2, Mic1, Mic2, Talkover
Line output
4x RCA
Speaker outputs
4mm binding posts (4 channels)
Antenna connection
F type (FM tuner)
Output controls
Source select (x2), Bass (x2), Treble (x2), Ch1, Ch2, Ch3, Ch4
Dynamic range
92dB
THD +N
<0.1%
Protection
Thermal, over-current, over-voltage, short-circuit
Dimensions
482 x 240 x 88mm
Weight
5.98kg
Troubleshooting
No power LED on control panel
Ensure IEC lead is in good condition and connected properly
Ensure POWER switch is on and check mains inlet fuse
Power light and output LEDs lighting
but no output
Check speaker output terminals are connected correctly
Check speakers are working (test on another amp if available)
Check memory device is connected properly (remove and re-insert)
Check file types
–
standard mp3 digital audio files required
Check memory device works on a PC or Mac for standard playback
Bluetooth cannot connect
Ensure that Bluetooth is enabled on sending device
Ensure that the sending device is within Bluetooth range (5-10m)
Check that the device is connecting to “
A series
”
No audio from Bluetooth device
Ensure that volume controls are not turned down on sending device
Check volume and Play/Pause buttons on media player
Output too loud or distorted
Reduce MIC, LINE IN, USB/SD and/or MASTER level
Ensure Hi-Z line level input(s) not connected to a Mic input
Output too quiet or inaudible
Increase MIC, LINE IN, USB/SD and/or MASTER level
Check for quiet recording of media files on USB
Check VOX override is not unintentionally suppressing audio playback
Feedback from microphone
Face microphone away from speakers and monitors and reduce level
Amplifier overheating
Ensure cooling vents are clear from debris and dust
Ensure that the load impedance on any o
utput channel is no less than 4Ω
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© 2018. AVSL Group Ltd.
