Atlona AT-GAIN-120 User manual

1
Installation Guide
AT-GAIN-120
Stereo/Mono Audio Power Amplier - 120 Watts
AT-GAIN-120
The Atlona Gain™ 120 (AT-GAIN-120) is a compact power amplier designed for low or high
impedance applications. A mode selector switch allows it to deliver two channels of 60 watts
each into 4 or 8 ohms, or a single channel of 120 watts at 70 or 100 volts. This Class-D amplier
is energy ecient, ENERGY STAR® qualied, and is also convection-cooled to allow installation
in conference rooms and quiet installation environments without the need for fans. In addition to
the amplied speaker output, a line level audio output allows the incoming audio to be fed into an
additional amplier or audio system. The Gain 120 is controllable via TCP/IP or external trigger,
and can be integrated with Atlona AV switchers and HDBaseT™ receivers for a wide variety of
sound reinforcement applications.
IMPORTANT: Visit http://www.atlona.com/product/AT-GAIN-120 for the latest rmware
updates and User Manual.
1 x AT-GAIN-120
2 x Captive screw connector, 2-pin
1 x Captive screw connector, 4-pin
2 x Captive screw connector, 5-pin
1 x IEC power cord
1 x Installation Guide
Package Contents

2
Installation Guide
AT-GAIN-120
PWR
VOL LEVEL
AUDIO AMPLIFIER
FWSIGNAL ANALOG IN
NET AUDIODEVICE ID
GAINTM
LAN
RESET RESET
LINE OUT
CLASS 2 WIRING CLASS 2 WIRING
TRIGGER MODE
MODEL:
dB
-22
-2
-4
-20
-19
-14
-9
-22
-2
-4
-20
-19
-14
-9
dB
ANALOG IN
L
4 / 8 Ω OUT 70V / 100V OUT
AT-GAIN-120
PWR: 100-120VAC 60Hz 120W
220-240VAC 50Hz 120W
L R L R
IP
4Ω
8Ω 100V
70V
R
INPUT GAIN
L R
Front Panel Descriptions
45 6 7
1 2 3
PWR
VOL LEVEL
AUDIO AMPLIFIER
FWSIGNAL ANALOG IN
NET AUDIODEVICE ID
GAINTM
LAN
RESET RESET
LINE OUT
CLASS 2 WIRING CLASS 2 WIRING
TRIGGER MODE
MODEL:
dB
-22
-2
-4
-20
-19
-14
-9
-22
-2
-4
-20
-19
-14
-9
dB
ANALOG IN
L
4 / 8 Ω OUT 70V / 100V OUT
AT-GAIN-120
PWR: 100-120VAC 60Hz 120W
220-240VAC 50Hz 120W
L R L R
IP
4Ω
8Ω 100V
70V
R
INPUT GAIN
L R
1 PWR
This LED will indicate power status.
2 SIGNAL
Will illuminate when an audio source or
signal is detected.
3 ANALOG IN
The LED will illuminate green when the
ANALOG IN port is the active input port.
4 DEVICE ID
LED will blink when the command Blink on
is sent, to help identify the device when
multiple units are present.
5 NET AUDIO (Optional function)
LED will illuminate when the INPUT port,
available on the optional AT-GAIN-NET
card, is the active input port.
6 VOL LEVEL
Displays the output audio level.
7 FW
Connect a USB-to-mini USB cable to
this port from a computer for rmware
updates.
8 Removable Faceplate
Insert the optional AT-GAIN-NET into this
slot.
9 RESET
Press and hold button for 10 seconds to
factory reset the unit.
10 IP RESET
Press and hold button for 10 seconds
to switch between DHCP and static IP
mode. Also press and hold for 3 seconds
to bring the unit out of hibernation mode.
11 TRIGGER
Use this port to toggle the unit between
on and standby or awaken the unit from
hibernation mode.
12 INPUT GAIN
Use a screwdriver to adjust the input gain
level for left and right channel.
13 MODE
Slide the switch to select between 4Ω, 8Ω,
70V, or 100V speaker power modes.
14 PWR
Connect from a power source to the AT-
GAIN-120 using the included IEC power
cord.
15 LAN
Connect an Ethernet cable to this port
from the Local Area Network.
16 ANALOG IN
Connect an audio source to this port
using the included 5-pin captive screw
connector.
17 LINE OUT
Use the included 5-pin captive screw
connector to connect to another AT-
GAIN-120, audio DSP, or audio mixer.
18 4 / 8 Ω OUT
Connect a pair of 4 or 8 ohm speakers to
this port using the included 4 pin captive
screw connector.
19 70V / 100V OUT
Connect 70V or 100V speakers to this
port with the included 2-pin captive screw
connector.
1615 17 18 19
98 10 11 141312

3
Installation Guide
AT-GAIN-120
Analog In
Line Out
Speaker Out
Trigger
Connect to an audio DSP or other audio distribution or source devices. Either balanced or
unbalanced connections may be used.
Use a jumper between the
negative and ground pins
when using an unbalanced
connection.
Use a jumper between the
negative and ground pins
when using an unbalanced
connection.
Connect to another GAIN-120 amplier audio input, audio mixer, or DSP.
Only one speaker output mode can be used at one time. Use the mode switch
to select the correct power mode.
The GAIN-120 can be toggled between on and standby using a
control device and system, such as the Velocity Command Converter
and Velocity control software. Connect the GAIN-120 using the
included 2-pin captive screw connector.
The 4-pin captive screw connector will be used with
either 4 or 8 ohm speakers. Slide the mode switch
to 4 or 8 ohm depending on the speaker type.
The 2-pin captive screw connector will be used with
either 70V or 100V speakers. Slide the mode switch to
70V or 100V depending on the speaker type.
ANALOG IN
L R
LINE OUT
L R
MODE
4Ω
8Ω 100V
70V
CLASS 2 WIRING
4 / 8 Ω OUT
TRIGGER
CLASS 2 WIRING
70V / 100V OUT
Balanced
Balanced
Unbalanced
Unbalanced
ANALOG IN
L R
Negative
-
Negative
-
+Positive
+Positive
Ground
ANALOG IN
L R
Negative
-
Negative
-
+Positive
+Positive
Ground
ANALOG IN
L R
+Positive
+Positive
Ground
ANALOG IN
L R
+Positive
+Positive
Ground

4
Installation Guide
AT-GAIN-120
1. Connect an audio source into the ANALOG IN port using the included 5-pin captive screw
connector.
2. Connect speakers to either the 4 / 8 Ohm or 70V / 100V port.
3. Set the mode switch to the correct output mode.
4. *Optional* Connect the line out to another GAIN-120’s ANALOG IN port for additional
speaker zones or an audio DSP.
5. *Optional* Connect the included 2-pin captive screw connector to the Trigger port to toggle
the GAIN-120 between on and standby mode, or to awake from hibernation mode, see AT-
GAIN-120 user manual for information on hibernation mode.
6. *Optional* Install the AT-GAIN-NET audio network card (not included) to accept Dante/
AES67 audio.
7. Connect the LAN port to a network switch for set up and control of the unit.
8. Connect the IEC cable from the unit to a 120V-240V power source.
Installation
NOTE: Gain-120 only supports one powered speaker type (low or high
impedance) output port at a time.
Mounting Instructions
The AT-GAIN-120 can be mounted in dierent
ways, based on the number of units that are being
installed. When installed into a standard 19” rack,
the AT-RACK-1RU will need to be purchased from
atlona.com.
AT-RACK-1RU
When installing the AT-GAIN-120 into the AT-RACK-1RU, it can be installed as a single unit on
either side of the rack or paired with any of Atlona’s other 1/2 rack units. e.g. UHD-SW series
products or another AT-GAIN-120
1. Turn the rack and unit upside down.
2. Line up the AT-GAIN-120 mounting holes to the holes marked with blue on the rack image
on the next page.
3. Use the included 7 mm screws to ax the unit to the rack.

5
Installation Guide
AT-GAIN-120
PWR
VOL LEVEL
AUDIO AMPLIFIER
FWSIGNAL ANALOG IN
NET AUDIODEVICE ID
GAIN
TM
LAN
INPUT
NETWORK AUDIO
RESET RESET
LINE OUT
CLASS 2 WIRING CLASS 2 WIRING
TRIGGER MODE
MODEL:
dB
-22
-2
-4
-20
-19
-14
-9
-22
-2
-4
-20
-19
-14
-9
dB
ANALOG IN
L
4 / 8 Ω OUT 70V / 100V OUT
AT-GAIN-120
PWR: 100-120VAC 60Hz 120W
220-240VAC 50Hz 120W
L R
IP
4Ω
8Ω 100V
70V
R
INPUT GAIN
L R
NOTE: Do not over-tighten the rack screws
to avoid damaging the unit.
PWR
VOL LEVEL
AUDIO AMPLIFIER
FWSIGNAL ANALOG IN
NET AUDIODEVICE ID
GAIN
TM
LAN
INPUT
NETWORK AUDIO
RESET RESET
LINE OUT
CLASS 2 WIRING CLASS 2 WIRING
TRIGGER MODE
MODEL:
dB
-22
-2
-4
-20
-19
-14
-9
-22
-2
-4
-20
-19
-14
-9
dB
ANALOG IN
L
4 / 8 Ω OUT 70V / 100V OUT
AT-GAIN-120
PWR: 100-120VAC 60Hz 120W
220-240VAC 50Hz 120W
L R
IP
4Ω
8Ω 100V
70V
R
INPUT GAIN
L R
PWR
VOL LEVEL
AUDIO AMPLIFIER
FWSIGNAL ANALOG IN
NET AUDIODEVICE ID
GAIN
TM
LAN
INPUT
NETWORK AUDIO
RESET RESET
LINE OUT
CLASS 2 WIRING CLASS 2 WIRING
TRIGGER MODE
MODEL:
dB
-22
-2
-4
-20
-19
-14
-9
-22
-2
-4
-20
-19
-14
-9
dB
ANALOG IN
L
4 / 8 Ω OUT 70V / 100V OUT
AT
-GAIN-120
PWR: 100-120VAC 60Hz 120W
220-240VAC 50Hz 120W
L R
IP
4Ω
8Ω 100V
70V
R
INPUT GAIN
L R
4. Turn the rack and units right-side up and install into a rack using the screws included with
the rack.

6
Installation Guide
AT-GAIN-120
Static
If no DHCP server is available, or a static IP is required, the GAIN-120 can be set to static IP
mode using the IP reset button.
• Press and hold the IP RESET button for 10 seconds to switch to static IP mode. In this
mode, the AT-GAIN-120 will be set to the following:
IP address: 192.168.1.254
Subnet mask 255.255.0.0
Gateway: 192.168.1.1
• To switch back to DHCP, press and hold the IP reset button for 10 seconds.
IP Modes
DHCP
By default, the AT-GAIN-120 is set to DHCP mode. In this mode, when the AT-GAIN-120 is
connected to the Local Area Network (LAN), it will automatically be assigned an IP address by
the DHCP server (if available).
Accessing the webGUI
The AT-GAIN-120 includes a built-in webGUI, which allows easy remote management and control
of all features. Follow the instructions below to access the webGUI.
1. Make sure that an Ethernet cable is connected between the LAN port on the AT-GAIN-120
and the network.
2. Launch a web browser and enter the IP address of the unit.
3. The AT-GAIN-120 Login page will be displayed.
4. Enter the following information on the Login page.
Login: admin
Password: Atlona
5. Click the Login button.
6. Refer to User Manual for detailed operation of the webGUI.
AMS 2.0
For easy conguration of Atlona devices , AMS 2.0 is available from https://atlona.com/ams for
free. Two options can be used for installation: The free Linux based software download or the
easy to install server hardware (AT-AMS-HW).
Once AMS has been set up:
1. Open a browser on the same network as AMS 2.0 and go to the IP address of AMS 2.0.
View the AMS 2.0 installation instructions on how to nd the IP address of the software.
2. Enter the login information on the AMS 2.0 web page, then click the Login button.
3. View the AT-GAIN-120 manual for routing and conguration information.

7
Installation Guide
AT-GAIN-120
Connection Diagram
PWR
VOL LEVEL
AUDIO AMPLIFIER
FWSIGNAL ANALOG IN
NET AUDIO
DEVICE ID
GAIN
TM
PWR
VOL LEVEL
AUDIO AMPLIFIER
FWSIGNAL ANALOG IN
NET AUDIODEVICE ID
GAIN
TM
Analog Audio
Line Out
4 / 8 Ohm Out
70 / 100 Volt Out
Generic
SPEAKER SYSTEMSSPEAKER SYSTEMS
Generic
SPEAKER SYSTEMSSPEAKER SYSTEMS
AT-GAIN-120
AT-GAIN-120
Laptop
Speakers
Ceiling
Speakers

8
Installation Guide
AT-GAIN-120
© 2018 Atlona Inc. All rights reserved. “Atlona” and the Atlona logo are registered trademarks of Atlona Inc. All other brand names and trademarks or registered
trademarks are the property of their respective owners. Pricing, specications and availability subject to change without notice. Actual products, product images, and
online product images may vary from images shown here.
atlona.com •408.962.0515 •877.536.3976
Version 2