Specifications; Troubleshooting - Adastra A2 User Manual

Specifications

Power supply
Power consumption max.
Fuse
Output power rms @ 4 Ohms
Output power rms @ 8 Ohms
Amplifier: construction
Frequency response
Microphone inputs
Line inputs
Input sensitivity: line
Input sensitivity: aux
Input impedance
Audio source
Input controls
Line output
Speaker outputs
Antenna connection
Output controls
Dynamic range
THD +N
Protection
Dimensions
Weight

Troubleshooting

No power LED on control panel
Power light and output LEDs lighting
but no output
Bluetooth cannot connect
No audio from Bluetooth device
Output too loud or distorted
Output too quiet or inaudible
Feedback from microphone
Amplifier overheating
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.
230Vac, 50Hz (IEC)
280W
F5A, 250V
2 x 200W
2 x 100W
Class D
20Hz - 20kHz ±0.5dB
2 x 6.3mm jack (mono)
Line 1: L+R (6.3mm jack/RCA), Line 2: L+R (RCA), Aux (3.5mm stereo)
0.775Vrms
0.480Vrms
20k Ohms (balanced), 10k Ohms (unbalanced)
USB/SD mp3 playback, FM tuner, BT receiver
Aux, Media, Line1, Line2, Mic1, Mic2, Talkover
2 x RCA
4mm binding posts (2 channels)
F type (FM tuner)
Source select, Bass, Treble, Ch1, Ch2
92dB
<0.1%
Thermal, over-current, over-voltage, short-circuit
482 x 240 x 88mm
5.21kg
Ensure IEC lead is in good condition and connected properly
Ensure POWER switch is on and check mains inlet fuse
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
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"
Ensure that volume controls are not turned down on sending device
Check volume and Play/Pause buttons on media player
Reduce MIC, LINE IN, USB/SD and/or MASTER level
Ensure Hi-Z line level input(s) not connected to a Mic input
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
Face microphone away from speakers and monitors and reduce level
Ensure cooling vents are clear from debris and dust
Ensure that the load impedance on any output channel is no less than 4Ω
Errors and omissions excepted.
Copyright© 2018. AVSL Group Ltd.
953.402UK User Manual