Touchscreen Control Panel
It’s Under Control
®
TOP PANEL DESCRIPTION
Installation & Operation
MIC
LINE
BASS
TREBLE
MUTE
INPUT SEL
1
2
AMR-220
AUDIO AMPLIFIER
1
2
3
No.
Name
Function
1
Audio Input Selection
Press button to select the input audio source. Once selected, the corresponding LED will be lit.
•
1 is for dual mono audio input (2 RCA connectors for L&R)
•
2 is for stereo audio input (3.5mm mini jack).
2
Audio Control
Press this button to select the MIC or Line volume level or the Bass and Treble level. Once selected,
use the Up/Down arrow buttons to adjust level.
3
Audio Adjustment
To adjust levels up/down or mute the corresponding audio.
: Adjust level down (Ex. Turn down the volume)
: Adjust level up (Ex. Turn up the volume)
MUTE: Mute the output.
FRONT AND REAR PANEL DESCRIPTION
1
3
4
5
2
RS232
Tx Rx
STEREO
BRIDGE
MONO
L
R
MIC
LINE
48V
MIC
1
2
INPUTS
24V
OUTPUTS
LOOP
1x40Watt 8
@
Ω
2x20Watt 4
@
Ω
A B
C
D
No.
Name
Function
1
Output Mode Selector
3-pole switch for output mode.
STEREO – Stereo audio signals will maintain stereo audio on the outputs; 20 watts per output.
MONO – Stereo audio signals will be summed to dual mono signals on the outputs; 20 watts per
output.
BRIDGE – Stereo audio signals will be summed to a single, high output audio output; 40 watts total
output.
2
RS-232
3-pole captive screw connector for serial control, it can be connected with control system (Use a
3-pole captive to 9 pin female D connector) to control AMR-220.
3
Microphone Input
3-pole captive screw connector for microphone input. Use the switch to the right to select the input
type: 48V (for condenser microphone), MIC (for dynamic microphone) and LINE (for line audio).
4
Audio Input 1
2 x RCA L&R stereo audio inputs.
5
Audio Input 2
3.5mm mini jack for stereo audio input for connection to an audio source or to the LOOP output of 2nd
AMR-220.
A
Power Indicator
LED lights red when powered on.
B
Power Port
To connect with the power adapter (24V DC).
C
LOOP
If a second AMR-220 is required, plug a 3.5mm TRS to 3.5mm TRS cable between the LOOP output
and Audio Input 2 of the second AMR-220.
D
Outputs
To connect with audio output devices, such as speakers (The connection type of speakers depends on
the audio output mode:STEREO, MONO or BRIDGE).
CONNECTION DIAGRAM
24V
OUTPUTS
LOOP
1x40Watt 8
@
Ω
2x20Watt 4
@
Ω
RS232
Tx Rx
STEREO
BRIDGE
MONO
L
R
MIC
LINE
48V
MIC
1
2
INPUTS
MIC
Control
System
Audio Player
Speaker
Speaker
MIC
Control
System
Audio Player
Front Panel
Rear Panel
Audio:
RS232:
Audio Player
BUTTON CONTROL
Audio Switching
The INPUT SELECT button will switch between:
•
Input 1: RCA analog audio input.
•
Input 2: 3.5 mm TRS input.
Volume and EQ Control
•
The LEVEL SELECT button will switch between MIC, LINE, BASS, and TREBLE levels.
•
When MIC or LINE are selected, the Down, Up, and Mute buttons will adjust the volume or mute the selected input.
•
When BASS or TREBLE are selected, the Down and Up buttons will adjust the bass or treble levels of the analog audio input signal.
MIC
LINE
BASS
TREBLE
MUTE
INPUT SEL
1
2
RS-232 CONTROL
To control the AMR-220 using serial communication from a control system, wire the RS-232 output of the control system to the AMR-220
RS-232 3-pole screw connector (pinout: Tx-Gnd-Rx).
•
Baud rate: 9600
•
Data bit: 8
•
Stop bit: 1
•
Parity bit: none
INSTALLATION
Visit the RTI dealer portal (www.rticorp.com/dealer) for additional instructions and specifications.
NOTE: Features and specifications subject to change without notice.