Atlona Technologies AT-GAIN-120 Installation Guide

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.

Package Contents

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

IMPORTANT: Visit http://www.atlona.com/product/AT-GAIN-120 for the latest rmware
updates and User Manual.

1

Installation Guide

PWR

VOL LEVEL

AUDIO AMPLIFIER

FWSIGNAL ANALOG IN

NET AUDIODEVICE ID

GAIN

TM

AT-GAIN-120

Front Panel Descriptions

1 2 3

PWR

TM

GAIN

L

LAN

ANALOG IN

NET AUDIODEVICE ID

4 5 6 7

98 10 11 141312

IP

RESET RESET

R

L R L R

LINE OUT

L R

-9

-9

-4

-4

8Ω 100V

-2

-14

-19

TRIGGER MODE

4 / 8 Ω OUT 70V / 100V OUT

CLASS 2 WIRING CLASS 2 WIRING

-2

-14

4Ω

-19

-20

-20

-22

-22

dB

dB

INPUT GAIN

1615 17 18 19

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 AT­GAIN-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.

VOL LEVEL

70V

PWR: 100-120VAC 60Hz 120W

AUDIO AMPLIFIER

FWSIGNAL ANALOG IN

MODEL:

AT-GAIN-120

220-240VAC 50Hz 120W

2

Installation Guide

L R

L R

L R

L R

Analog In

Connect to an audio DSP or other audio distribution or source devices. Either balanced or
unbalanced connections may be used.

L R

ANALOG IN

+

-

Negative

Positive

Ground

+

-

Negative

Positive

+

Positive

Ground

Use a jumper between the
negative and ground pins
when using an unbalanced
connection.

+

Positive

AT-GAIN-120

Line Out

Balanced

Unbalanced

Connect to another GAIN-120 amplier audio input, audio mixer, or DSP.

L R

+

LINE OUT

Speaker Out

8Ω 100V
4Ω

70V

MODE

+

-

Negative

Positive

Positive

Ground

-

Negative

Balanced

Only one speaker output mode can be used at one time. Use the mode switch
to select the correct power mode.

+

+

Positive

Positive

Ground

Unbalanced

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.

4 / 8 Ω OUT

CLASS 2 WIRING

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.

70V / 100V OUT

CLASS 2 WIRING

Use a jumper between the
negative and ground pins
when using an unbalanced
connection.

Trigger

TRIGGER

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.

3

Installation Guide

AT-GAIN-120

Installation

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.

NOTE: Gain-120 only supports one powered speaker type (low or high

impedance) output port at a time.

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 AT­GAIN-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.

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.

4

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

-GAIN-120

to avoid damaging the unit.

Installation Guide

AT-GAIN-120

ANALOG IN

VOL LEVEL

LINE OUT

L

R

CLASS 2 WIRING CLASS 2 WIRING

4 / 8 Ω OUT 70V / 100V OUT

L R

RESET RESET

NETWORK AUDIO

IP

TRIGGER MODE

NET AUDIODEVICE ID

PWR: 100-120VAC 60Hz 120W

220-240VAC 50Hz 120W

INPUT GAIN

dB

-22

-20

-19

dB

-14

-22

-20

-9

-19

-2

L R

-4

-14

TM

GAIN

-9

4Ω

PWR

-2

-4

8Ω 100V

LAN

ANALOG IN

VOL LEVEL

INPUT

FWSIGNAL ANALOG IN

LINE OUT

L

AUDIO AMPLIFIER

R
CLASS 2 WIRING CLASS 2 WIRING

4 / 8 Ω OUT 70V / 100V OUT

L R

RESET RESET

NETWORK AUDIO

IP

TRIGGER MODE

NET AUDIODEVICE ID

PWR: 100-120VAC 60Hz 120W

220-240VAC 50Hz 120W

INPUT GAIN

dB

-22

-20

-19

dB

-14

-22

-20

-9

-19

-2

L R

-4

-14

TM

GAIN

PWR

MODEL:

AT

4. Turn the rack and units right-side up and install into a rack using the screws included with
the rack.

5

-9

4Ω

-2

-4

8Ω 100V

70V

70V

MODEL:

AT-GAIN-120

LAN

INPUT

FWSIGNAL ANALOG IN

AUDIO AMPLIFIER

Installation Guide

AT-GAIN-120

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).

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.

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.

6

Connection Diagram

Installation Guide

AT-GAIN-120

Laptop

4 / 8 Ohm Out

Line Out

Analog Audio

Speakers

70 / 100 Volt Out

Generic

SPEAKER SYSTEMSSPEAKER SYSTEMS

Generic

SPEAKER SYSTEMSSPEAKER SYSTEMS

Ceiling

AUDIO AMPLIFIER

FWSIGNAL

VOL LEVEL

ANALOG IN

NET AUDIO

DEVICE ID

PWR

AT-GAIN-120

TM

GAIN

AUDIO AMPLIFIER

FWSIGNAL ANALOG IN

VOL LEVEL

NET AUDIODEVICE ID

PWR

AT-GAIN-120

TM

GAIN

Speakers

7

Installation Guide

AT-GAIN-120

Version 2

atlona.com • 408.962.0515 • 877.536.3976

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