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Rear Panel

1.  AC Power Socket
2.  AC Fuse
3.  FM Antenna 
4.  24V DC Battery Input
5.  Speaker output (COM)
6.  Speakeroutput4Ω
7.  Speakeroutput8Ω

8.  Speakeroutput16Ω
9.  70V Output
10.  100V output
11.   Alert Message USB connector 
12.  Alert Input Contacts
13.  Mic 2/Line 1 Input
14.  Mic 3/Line 2 Input

15.  Dipswitch selector
16.  Mic 1 XLR combo jack
17.  Line 3 Input
18.  Line 4 Input
19.  Line Output for slave amplifier

Dipswitch Settings 

1.  Mic2/Line 1

ON – Line 1

OFF – Mic 2

2.  Mic3/Line 2

ON – Line 2

OFF – Mic 3

3.  Phantom Power to Mic1

ON – Power 48V

OFF – Phantom Power off

4.  Alert Priority

ON – Alert Message

OFF – Mic 1

4

5

7

9

13

15

16

17

19

12

11

6

8 10

14

18

1

3

2

Summary of Contents for Alert 120

Page 1: ...Alert Amplifier Manual www magna av com...

Page 2: ...s we strongly recommend you retain this manual and the original packaging In the unlikely event the product must be returned for servicing the original packaging or reasonable equivalent is required C...

Page 3: ...ified service personnel Servicing is required when the amplifier or mains cable has been damaged in any way 13 Never switch on if liquid or objects have fallen into the amplifier or if the amplifier h...

Page 4: ...Protection LED 4 Clip LED 5 DB Output level LED 6 Power Switch 7 Mic 1 Volume 8 Mic 2 Line 1 Volume 9 Mic 3 Line 2 Volume 10 Line 3 Volume 11 Line 4 Volume 12 Alert Message Volume 13 Bass 14 Treble 1...

Page 5: ...Alert Input Contacts 13 Mic 2 Line 1 Input 14 Mic 3 Line 2 Input 15 Dipswitch selector 16 Mic 1 XLR combo jack 17 Line 3 Input 18 Line 4 Input 19 Line Output for slave amplifier Dipswitch Settings 1 M...

Page 6: ...Rackmount Version...

Page 7: ......

Page 8: ...put contacts for example door contact timer unit or push button The amplifier is designed with automatic overload protection short circuit and high temperature shut off to avoid any damage to the inte...

Page 9: ...s transformer may be tapped for different power ratings These tapping s can be used to adjust the wattage and output volume of each speaker in the system to help achieve A 100V line speaker system can...

Page 10: ...ng Diagram COM 4 8 16 70V 100V 100V 100V COM 4 8 16 70V 100V 8 8 COM 4 8 16 70V 100V 16 16 COM 4 8 16 70V 100V 32 32 Total impedance of 100V Total impedance of 4 Total impedance of 8 Total impedance o...

Page 11: ...ypical 100V Public Address Diagram Connected to mains 240VAC Battery Alarm Trigger Audio source player DAB radio Extension amplifier Speakers Omni directional aerial Tabletop mic Wireless mic Wired mi...

Page 12: ...g noise If VOX is enabled by setting the priority DIP switch to Mic 1 audio playback will be reduced in volume automatically when speaking into Mic1 Use the volume to control primary sound level In ad...

Page 13: ...guration to the amplifiers internal memory To record a message please make sure your file is in an MP3 format Connect the amplifier to the USB port of your computer with the amplifier switched off You...

Page 14: ...Line output by RCA Volume Control Microphone 1 3 Line 1 4 MP3 FM Via Remote Bass Treble and Master Line Out 0 775V 0dbV Frequency Response 60Hz 15Khz 3dB S N Ratio Line 85dB Mic 72dB THD Less Than 0 5...

Page 15: ...equipment to an outlet on a different circuit to the amplifier The European Union has enacted a Directive 2012 19 EU on Waste Electrical and Electronic Equipment WEEE Directive This directive is appli...

Page 16: ...www magna av com...

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