Stereo / Mono Audio Power Amplifier 120 Watts AT-GAIN-120 Atlona Manuals Audio
Version Information Version Release Date Notes 1 4/18 Initial release AT-GAIN-120 2
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Atlona, Inc. (“Atlona”) Limited Product Warranty Coverage Atlona warrants its products will substantially perform to their published specifications and will be free from defects in materials and workmanship under normal use, conditions and service.
Atlona, Inc. (“Atlona”) Limited Product Warranty • Damage, deterioration or malfunction resulting from the installation or removal of this product from any installation, any unauthorized tampering with this product, any repairs attempted by anyone unauthorized by Atlona to make such repairs, or any other cause which does not relate directly to a defect in materials and/or workmanship of this product.
Important Safety Information The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. Das Symbol des Blitzzeichens innerhalb eines gleichseitigen Dreiecks soll den Benutzer davor warnen, dass innerhalb des Gehäuses gefährlich hohe Spannung an berührbaren Teilen anliegt.
Important Safety Information CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCT THE RISK OF ELECTRIC SHOCK DO NOT OPEN ENCLOSURE OR EXPOSE TO RAIN OR MOISTURE. NO USER-SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance instructions in the literature accompanying the product.
Table of Contents Introduction 9 Features 9 Package Contents 9 Panel Description 10 Installation Audio Connectors ANALOG IN / LINE OUT 4 / 8 Ω OUT 70V / 100V OUT Trigger Connection Instructions Connection Diagram 11 11 11 11 12 12 13 14 Basic Operation IP Configuration Using the Rear Panel Using Commands Using the Web GUI LED Indicators Power Modes Powering On or Off Auto Power Down mode Hibernation mode Input Switching Manual Switching Auto Switching Network Audio Dante Software Configuration Ena
Introduction The Atlona Gain™ 120 (AT-GAIN-120) is a compact power amplifier 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 amplifier is energy efficient, ENERGY STAR® qualified, and is also convection-cooled to allow installation in conference rooms and quiet installation environments without the need for fans.
Panel Description 1 2 3 AUDIO AMPLIFIER SIGNAL ANALOG IN DEVICE ID NET AUDIO SIGNAL ANALOG IN DEVICE ID NET AUDIO PWR PWR AUDIO AMPLIFIER FW FW GAINTM VOL LEVEL GAINTM VOL LEVEL Front 4 5 7 9 10 -14 L -9 -19 L R L R -20 -9 -14 -22 IP RESET RESET TRIGGER IP R L RESET RESET TRIGGER L R -2 -20 -9 R -4 -2 -14 -22 -19 INPUT GAIN dB 8Ω 4Ω 8Ω 4Ω -20 -22 INPUT GAIN dB MODE 100V 70V MODEL: AT-GAIN-120 100V 70V MODEL: AT-GAIN-120 MODE R PWR: 100-120VAC 60Hz 120W 2
Installation Audio Connectors The AT-GAIN-120 provides two audio ports which provide analog audio input and output. The ANALOG IN port can be used to connect an audio digital signal processor (DSP) or other audio source device. Balanced or unbalanced wiring is supported. The LINE OUT port can be used to connect an audio output device or daisy-chain to another amplifier. NOTE: The LINE OUT port only outputs analog audio. This port cannot be used to output digital audio from the optional AT-GAIN-NET card.
Installation 70V / 100V OUT Connect a distributed speaker system to the included 2-pin captive screw connector, then connect the terminal block to the 70V / 100V OUT port. When connecting program / stereo speakers, set the MODE switch to either 70V or 100V, depending upon the speakers. Trigger The AT-GAIN-120 provides a TRIGGER port allowing the AT-GAIN-120 to be connected to an occupancy sensor.
Installation Connection Instructions The AT-GAIN-120 can be used with an optional network audio card, which supports Dante and AES76 audio streams. If this card will be installed, refer to Network Audio Card Installation (page 40) for more information before continuing with the following instructions. This network card is sold separately and is available from Atlona. 1. Connect an analog audio source, using the included 5-pin captive screw connector, to the AUDIO IN port.
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Basic Operation IP Configuration The AT-GAIN-120 is shipped with DHCP enabled. Once connected to a network, the DHCP server (if available), will automatically assign an IP address to the unit. Execute the arp -a command at the Windows command line or use an IP scanner to locate the AT-GAIN-120 on the network. If the AT-GAIN-120 is unable to detect a DHCP server, within 15 seconds, then the unit will be assigned the following IP configuration: • • • IP address Subnet mask Gateway 192.168.1.254 255.255.
Basic Operation Using Commands Use the IPStatic and IPDHCP commands to switch between DHCP and static IP mode using Telnet. Refer to the Application Programmers Interface documentation for more information. All commands and their arguments are case-sensitive. • Setting static IP mode 1. Connect to the AT-GAIN-120 using Telnet. 2. At the command line, execute the IPDHCP command using the off argument, as shown. IPDHCP off 3. Execute the IPStatic command.
Basic Operation Using the Web GUI The Network page (page 32) in the web GUI allows the option for the AT-GAIN-120 to use either DHCP or static IP mode. In order to access the web GUI, the IP address of the AT-GAIN-120 must be known. 1. Open the desired web browser and enter the IP address of the AT-GAIN-120. 2. Log in, using the required credentials. The factory-default username and password are listed below: Username: admin Password: Atlona 3. Click the Network tab, located on the side menu bar.
Basic Operation 5. The following message box will be displayed: 6. Click OK to accept the changes or click Cancel to abort changes and return to the Network page.
Basic Operation LED Indicators The LED indicators on the front panel, provide information on the current state of the AT-GAIN-120. Refer to the table below for more information. AUDIO AMPLIFIER SIGNAL ANALOG IN DEVICE ID NET AUDIO PWR FW GAINTM VOL LEVEL LED Indicator State L Description PWR Solid green Unit is powered.
Basic Operation Power Modes The following section discusses the power mode features which have been integrated into the AT-GAIN-120. Power modes are located under the Control tab within the web GUI. 1. Open the desired web browser and enter the IP address of the AT-GAIN-120. 2. Log in, using the required credentials. The factory-default username and password are listed below: Username: admin Password: Atlona 3. Click the Control tab, located on the side menu bar.
Basic Operation 1. Click the ENABLE option, if it is not selected. 2. Set the time interval, which must elapse, before the AT-GAIN-120 powers-down. The default setting is 15 minutes. 3. Click the Save button. Hibernation mode Enabling this mode will place the AT-GAIN-120 into a very-low power mode where power consumption is limited to 0.5 W. When in hibernation mode, there will be no audio output or network communication.
Basic Operation Input Switching When the optional AT-GAIN-NET card is installed, switching between the ANALOG IN and the audio input on the ATGAIN-NET card can be performed either manually or automatically. The following section covers both methods. The AT-GAIN-NET card is available from Atlona. Manual Switching 1. Open the desired web browser and enter the IP address of the AT-GAIN-120. 2. Log in, using the required credentials.
Basic Operation Auto Switching When auto-switching is enabled, the AT-GAIN-120 will automatically switch audio inputs, based on the presence of an input signal. Auto-switching is enabled, by default. If the AT-GAIN-NET card is not installed, this feature will not have any effect. NOTE: In order to Telnet to the AT-GAIN-120, the IP settings must be set correctly. Refer to IP Configuration (page 15) for more information. 1. Establish the IP address of the AT-GAIN-120. 2.
Basic Operation Network Audio The AT-GAIN-120 supports Dante and AES67 audio streams with the addition of the optional AT-GAIN-NET audio card, which can be purchased from Atlona. Refer to Network Audio Card Installation (page 40) for information on card installation. For setup and control of Dante / AES67 audio routing and configuration, refer to the Audinate Dante Controller software. AMS 2.0 and the web graphical interface of the AT-GAIN-120 supports basic network, control, and audio level adjustments.
Basic Operation 4. Click the icon, next to the NetAudio-xxxxx card, under Dante Receivers, to view the channels. The ATGAIN-NET audio card has a maximum of two channels of audio. Refer to the Dante Controller User Guide for details on operation. Click to expand Enabling AES67 Support In order to route AES67 audio over IP, both the transmitter and receiver must support AES67 and have this option enabled. 1.
Basic Operation 2. A separate window will open. Click the AES67 tab. 3. Click the New drop-down list and select Enabled. 4. A message box will be displayed prompting to confirm AES67 is to be enabled. Click Yes. 5. Another message box will be displayed. In order for AES67 to be enabled, the card must be rebooted. Click Yes to reboot the network card. 6. AES67 is now enabled.
Basic Operation Volume Control Output audio level is controlled hrough the built-in web GUI. Volume control only affects the 4 / 8 Ω OUT and 70V / 100V OUT ports. Adjusting the audio output volume does not affect the LINE OUT port, as this port is a fixed-level output. The LINE OUT port is designed to be connected to a pre-amp device. 1. Log in to the web GUI. Refer to Introduction to the Web GUI (page 28) for more information. 2. Click the Audio menu. 3.
The Web GUI Introduction to the Web GUI The AT-GAIN-120 includes a built-in web GUI. Atlona recommends that the web GUI be used to set up the AT-GAIN-120, as it provides intuitive management of all features. The AT-GAIN-120 is shipped with DHCP enabled. Once connected to a network, the DHCP server will automatically assign an IP address to the unit. Use an IP scanner to determine the IP address of the AT-GAIN-120. If a static IP address is desired, refer to IP Configuration (page 15).
The Web GUI 7. The Status page will be displayed. 8. To logout of the web GUI at any time, click Logout on the side menu bar. Once logged out, the AT-GAIN-120 will display the login screen. Menu Bar The window on the left side of the screen is the menu bar. The menu system is divided into three sections: Home, Settings, and Configuration. When the mouse is moved over each menu item, it will be highlighted in black. Click the menu item to go that page.
The Web GUI Status page Download Log Click this button to download a log of command events to the computer’s hard disk. Status (progress bar) Displays the status of saving and loading system settings files. Model The SKU of this product. Browse Click this button to select the desired system settings file. Click the Load button to upload the settings file to the AT-GAIN-120. Firmware The current firmware version installed. MAC Address The MAC address of the AT-GAIN-120.
The Web GUI Firmware page Current Firmware The current firmware version installed. Status (progress bar) Displays the status of loading new firmware during a firmware update procedure. Browse Click this button to select the firmware file. Click the Load button to begin the update procedure. Refer to Updating the Firmware (page 36) for more information. Load Click this button to upload the selected firmware file to the AT-GAIN-120.
The Web GUI Network page After pressing the Save button, a reboot message will appear at the top of the web GUI. The AT-GAIN-120 must be rebooted when any of the network settings have changed. DHCP Click the ON button to enable DHCP. Click the OFF button to enable static IP mode. In static IP mode, the IP Address, Subnet, and Gateway fields can be modified. Hostname Enter the desired hostname in this field. By default, the hostname is the product (SKU) plus the last five digits of the unit serial number.
The Web GUI Control page Power Click the ON button to power-on the AT-GAIN-120. Click the OFF button to power-off the unit. Auto Power Down Enables or disables auto power down mode. Refer to Auto Power Down mode (page 20) for more information. Auto Power Down Time (min) Specify the time interval before the AT-GAIN-120 goes into auto power down mode. Refer to Auto Power Down mode (page 20) for more information. Hibernation Enables or disables hibernation mode.
The Web GUI Users page Current Username The administrator username. This field cannot be changed. Password Enter the password for the administrator in this field. Special characters (e.g. #, %, @, &, etc.) are not permitted. Change Admin Password • Old password Enter the current password in this field. The default password is Atlona. • New Password Enter the new password in this field. • Confirm Password Verify the new password by entering it in this field.
The Web GUI Audio page Input Selection Click this drop-down list to select the audio input: Analog or Net Audio. The Net Audio selection will only be available if the optional AT-GAIN-NET card is installed. This card is available from Atlona. Output Status Displays the current output impedance setting. Equalization (Graphic, 5-band) Click and drag each of these sliders to adjust the output frequency range. Each band has a range from -10 dB to +10 dB.
Appendix Updating the Firmware The AT-GAIN-120 can only be updated either through the web GUI or using the mini-USB port on the front panel. IMPORTANT: As of this writing, Google Chrome is the only browser that is supported for firmware updates. Other browsers will be supported in future versions of firmware. Web GUI Required items: • • • • Firmware IP address of the AT-GAIN-120 Computer on the same network as the AT-GAIN-120 Username and password to access the web GUI 1.
Appendix 4. Click Status in the menu bar on left side of the screen. 5. Click the Save button. 6. The Save As dialog box will be displayed. Select the folder where the file will be saved. Click the Save button to save the file. The file is saved in .bin format and uses the default name of systemsettings.bin. 7. Click Firmware on the left side of the screen. 8. Click the Browse button to select the firmware file. 9.
Appendix USB Required items: • • • Firmware USB Type A to Mini-USB Type B cable Computer with USB port 1. Download the latest firmware from the Atlona web site. 2. Disconnect the power from the AT-GAIN-120. 3. Connect the USB cable from the FW port on the front panel to the computer with the firmware. 4. Reconnect the power to the AT-GAIN-120. After a few seconds, a drive folder will be displayed. 5. Delete all existing files on this drive. 6.
Appendix Rack Mount Installation The AT-GAIN-120 can be mounted in different 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. The AT-RACK-1RU can be used to either mount a single AT-GAIN-120 unit or it can be used to mount multiple halfrack Atlona products, such as a AT-GAIN-120 and a AT-UHD-SW-510W.
Appendix Network Audio Card Installation The AT-GAIN-NET is an optional audio card which allows Dante and AES67 audio streams to be used with the ATGAIN-120. Follow the instructions below to install the AT-GAIN-NET audio card. WARNING: To prevent the risk of electrocution or electric shock, always disconnect the power cord from the AT-GAIN-120 before installing or removing the AT-GAIN-NET network card. 1. Disconnect the power cord from AT-GAIN-120. 2.
Appendix 4. Locate the plastic guides on either side of the expansion slot. Plastic Guides Upper Rail Lower Rail 5. Carefully position the card between the upper and lower rail of each guide, and gently push the AT-GAIN-NET network card forward, until it locks in place. The card will make a small snapping sound, once the card is in place. IMPORTANT: When handling the card, avoid touching the components. Always hold the card by the edges. Electrostatic discharge can damage components and the card.
Insert direction Appendix 6. Locate the included AT-GAIN-NET faceplate with the INPUT port and install the faceplate using the screws from Step 2, as shown below. Do not over-tighten the screws using high-torque devices, as this may cause damage to the screws or the faceplate assembly. Included AT-GAIN-NET Faceplate 7. Card installation is complete. 8. Connect the power cable to the AT-GAIN-120. 9. Connect an Ethernet cable, with an encoded digital audio stream, to the INPUT port.
Appendix Default Settings The following table lists the factory-default settings for the AT-GAIN-120. Feature Settings Network DHCP Static IP address Subnet Gateway Telnet Port HTTP Port IP Timeout Hostname Telnet Login Mode ON 192.168.1.254 255.255.0.0 192.168.1.
Appendix Specifications Connectors, Controls, and Indicators INPUT 1 - RJ45 (AT-GAIN-NET network audio card, only), 100 Mbps LAN 1 - RJ45 ANALOG IN 1 - 5-pin captive screw, balanced: 20 k Ω, unbalanced: 10 kΩ LINE OUT 1 - 5-pin, 3.5mm TRIGGER 1 - 2-pin captive screw 4 / 8 Ω OUT 1 - 4-pin, 5.08 mm lock-down screw connector 70V / 100V OUT 1 - 5-pin, 3.
Appendix Audio Performance Frequency Response 20 Hz - 20 kHz, ±2 dB @ 4 Ω load THD + N < 0.1% @ 1kHZ, 3 db below clipping SNR > 90 dBA WTD Damping Factor < 90 @ 8 Ω Amplifier Type Class D Temperature Fahrenheit Celsius Operating 32 °F to 122 °F 0 °C to 50 °C Storage -40 °F to 158 °F -40 °C to 70 °C Humidity (RH) 90% RH, non-condensing Power Standby Mode Powers down after 5 - 25 minutes (adjustable) of no signal; complies with ENERGY STAR power consumption limits of < 0.
Index A Appendix 36 Audio connectors 11 distributed speakers 11 impedance 11 Auto power-down. See Power modes: auto powerdown Auto-switching 23 C Configuration IP. See IP configuration Connection diagram 14 instructions 13 Contents package 9 Customer support 3 D Default setttings 43 Description front / rear panel 10 E Equalizer adjusting 27, 35 frequency spectrum 35 F FCC statement 7 Features 9 Firmware displaying 30, 31 updating using the web GUI 36 updating using USB 38 H Hibernation mode.
Index T Trigger voltage levels 12 U Users primary user name 28 V Volume adjusting 27, 35 W Warranty 4 Web GUI 28 AT-GAIN-120 47
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