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953.422UK User Manual

 

Introduction 
 

Thank you for choosing the A22 to power your sound system. This compact digital amplifier 
has been designed to provide a flexible background music and public address solution in a 
discreet and easy-to-use format. Please read and keep this user manual to achieve the best 
results from your equipment and avoid damage through misuse. 

 
Front panel 
 

 

 

Power on/off switch 

Music TREBLE EQ control 

Media player  

Music BASS EQ control 

Microphone input 6.3mm mono jack 

AUX 1 input 3.5mm stereo jack 

MIC VOLUME control 

Music VOLUME control 

 
Rear Panel 
 

 

 

LINE OUT output L+R RCA 

13 

CH 1 speaker out +/- screw terminals 

10 

AUX 2 input L+R RCA 

14 

CH 2 speaker out +/- screw terminals 

11 

AUX 3 input L+R RCA 

15 

IEC mains power inlet and fuse holder 

12 

FM antenna connection F-type 

 

 

 

 
 

Summary of Contents for A22

Page 1: ...A22 Class D Compact Music Amplifier Item ref 953 422UK User Manual Version 1 0 Caution Please read this manual carefully before operating Damage caused by misuse is not covered by the warranty ...

Page 2: ...est results from your equipment and avoid damage through misuse Front panel 1 Power on off switch 5 Music TREBLE EQ control 2 Media player 6 Music BASS EQ control 3 Microphone input 6 3mm mono jack 7 AUX 1 input 3 5mm stereo jack 4 MIC VOLUME control 8 Music VOLUME control Rear Panel 9 LINE OUT output L R RCA 13 CH 1 speaker out screw terminals 10 AUX 2 input L R RCA 14 CH 2 speaker out screw term...

Page 3: ...ned impedance no lower than 4Ω for each output channel If each speaker being connected is 4Ω then connect only 1 speaker to each channel If each speaker is 8Ω you can connect 1 speaker or 2 speakers in parallel per channel Do not connect more speakers to either channel as this may cause damage to the A22 An example of wiring 8Ω speakers to the A22 is shown opposite A single 8Ω speaker may be conne...

Page 4: ...from USB or microSD FM tuner and Bluetooth which are all handled by the built in media player For good reception of FM radio stations if needed in the media player the A22 has an F connector 12 on the rear panel which can be connected to an external FM antenna aerial This is recommended if the FM tuner is to be used For mp3 playback it is necessary to insert a USB flash drive into the USB port and...

Page 5: ...s the higher frequencies whilst turning it anticlockwise reduces the higher frequency content Reduce the TREBLE level if there is screeching feedback from the microphone or if playback is too thin or tinny sounding Increase the TREBLE level if the sound is muffled and not clear Turning the BASS control clockwise boosts the lower frequencies whilst turning it anticlockwise reduces the lower frequen...

Page 6: ...anel AUX1 input 3 5mm stereo jack Select rear panel AUX2 input L R RCA connectors Select rear panel AUX3 input L R RCA connectors MP3 Mp3 playback only if USB microSD inserted MHz FM radio station shows channel then frequency Bluetooth mode REPEAT Repeat single track Repeat all tracks in the current folder Play all tracks in random order Repeat all tracks on media REC Hold REPEAT for 5 seconds in ...

Page 7: ...o enable this function it will be necessary to pair the sending device to the receiver as follows 1 Press the media player MODE button until the display shows 2 Open the Bluetooth settings menu on the smart phone or tablet 3 Scan for Bluetooth devices and look for A22 in the list of available devices ensure that the A22 is powered on with Bluetooth selected and within reception range 4 Select A22 ...

Page 8: ...posal 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 422UK is in compliance with Directive 20...

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