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Atlona AT-GAIN-120 Stereo/Mono Power Amplifier - 120 Watts

The Atlona Gain™ 120 (AT-GAIN-120) is a compact power amplifier designed for low or high impedance applications. A mode selector switch allows the Gain 120 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.
In stock (50 items available)
  • Brand
  • SKU
  • Weight
    20.00 lbs
  • Warranty
    10 Years
  • Condition
  • Status
Product availability status

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  • $780.00
  • Shipping info
    We offer free ground shipping on every purchase of $300 and more for US.
  • Payment Methods

  • Return Policy
    We Offer a 60-Day Money Back Guarantee
  • Weight
    20 lbs
  • SKU
  • Mnf#/Vendor#

The Atlona Gain™ 120 (AT-GAIN-120) is a compact power amplifier designed for low or high impedance applications. A mode selector switch allows the Gain 120 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 and ENERGY STAR qualified, and is also convection cooled to allow installation in conference rooms and quiet installation environments without the need for fans. In addition to the amplified speaker output, a line level audio output allows the incoming audio to be fed into an additional amplifier or audio system. The Gain 120 is controllable via TCP/IP or external trigger, and can be integrated with Atlona AV switchers and OmniStream™ AV systems for a wide variety of sound reinforcement applications.

NOTE: The AT-RACK-1RU rack shelf is a required accessory to ensure a proper, secure rack installation.


  • Meeting rooms, conference rooms, training rooms, and classrooms – The Gain 120 can receive audio from an AV switcher or DSP, and then feed the audio to program speakers on the front wall, or a distribution of ceiling speakers.
  • Facility audio systems – The Gain 120 can be integrated with a centralized audio distribution system for paging and background music, as well as audio content targeted to specific zones.


  • Selectable low or high impedance operation
  • 2 x 60 watts @ 4 or 8 ohms
  • 1 x 120 watts @ 70 or 100 volts
  • Class D efficient amplifier design
  • ENERGY STAR qualified
  • Convection cooled – no need for fans
  • Optional AES67 / Dante networked audio interface (AT-GAIN-NET) – receives two-channel audio from OmniStream AV encoders or compatible audio devices
  • Available AT-RACK-1RU rack shelf – required accessory for rack installation
  • Automatic standby, configurable from 5 to 25 minutes of inactivity, to minimize power consumption
  • Rear panel input level controls
  • Integrated protection circuitry automatically activates in the event of clipping, short circuit, thermal overload, and more
  • Low inrush current to prevent audible “thumps” when multiple amps are powered on simultaneously
  • Balanced line level output for pass-through to an additional amplifier or audio system
  • Integrated five-band equalizer
  • TCP/IP control of volume level, muting, and EQ
  • Ideal for IP-based control from Atlona Velocity™ Control System
  • Trigger port ideal for occupancy sensor or control system to remotely power down amplifier or wake from standby
  • Front panel signal status LEDs for power, signal presence, real-time volume level, device identification, and internal protection activation
  • Rack-mountable 1U, half rack width enclosure
  • Includes installation guide, power cable (US), and captive screw connectors
  • Award-winning 10 year limited product warranty
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, 3.5mm
FW 1 – mini-USB, type-B
INPUT GAIN 2 – Rotary pots, L/R channel
MODE 1 – Slider switch, 4-pole, 4 Ω / 8 Ω / 70 V / 100 V
RESET 1 – Push button, tact-type
IP RESET 1 – Push button, tact-type
Power 1 – IEC power receptacle
PWR 1 – LED indicator, green
SIGNAL 1 – LED indicator, green
DEVICE ID 1 – LED indicator, green
ANALOG IN 1 – LED indicator, green
NET AUDIO 1 – LED indicator, green
VOL LEVEL 1 – Multi-LED indicator


Input Signal
Analog Input Balanced: 20 kΩ, unblanced: 10 kΩ
CMRR 51 dB / 58 dB
Detection Threshold 0 dBV = 2.218 dBu


Output Signal
Distributed speakers (mono) 70 V / 100 V
Program speakers (stereo) 4 Ω / 8 Ω, line-level
Power 70 V = 120 Vrms (bridge mode)
100 V = 120 Vrms (bridge mode)
4 / 8 Ω = 60 W per channel


Audio Processing
D/A Conversion 24-bit, selectable sampling rate
Audio Formats 24-bit uncompressed, selectable at 44.1, 48, 88.2, and 96 kHz sampling rate
Latency 2 ms
Signal Processing Volume, Auto on/off signal sensing, 80 Hz HPF
Network Audio Transport Dante, AES67
Equalization 5-band, adjustable: 40 Hz, 150 Hz, 500 Hz, 2 kHz, and 10 kHz bands
Range: -10 dB to +10 dB


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 to 122 0 to 50
Storage -40 to 158 -40 to 70
Humidity (RH) 90%, non-condensing


Standby Mode Powers down after 5-25 minutes (adjustable) of no signal; complies with ENERGY STAR power
consumption limits of < 0.5 W in standby mode
Consumption 120 W (max.)
Standby Consumption normal standby < 0.5 W
network standby < 2 W
Supply 100 – 240 V AC, 50/60 Hz, 120 W


Dimensions Inches Millimeters
H x W x D 1.69 x 8.66 x 12.99 43 x 220 x 330


Weight Pounds Kilograms
Device 19.84 9


Free Ground Shipping
We offer free ground shipping on every purchase of $300 and more for US and US territory. Please choose "Free Ground Shipping (UPS/USPS)" option at checkout.

UPS Ground
UPS provides up-to-date tracking information. Ground service takes anywhere from 2-7 working days for delivery depending on destinations.UPS Ground does not deliver on Saturdays, Sundays or Holidays.

USPS Priority Mail/USPS Express Mail For all shipments shipped via USPS, we offer 'DELIVERY CONFIRMATION' number with each package. Difference between tracking number provided by UPS vs USPS Delivery Confirmation number is: Delivery Confirmation status is updated when the delivery has been made or when the package has made it through major USPS stations.

Air Shipment
Air shipments, Overnight, 2nd day and 3 day select methods offer guaranteed delivery time for your shipment. If you are in hurry or in need for the items on schedule, select one of these methods. Up-to-date tracking information is provided with each Air Shipment. BZB Express has the right to choose between Air shipments to meet or reduce delivery time. For guaranteed delivery of multiple items with expedited shipping, please contact our customer service representative for personalized assistance to get your items delivered to you when you need them.

International Customers
We offer shipping via USPS/UPS for our international customers. You can find different shipping options during checkout.

Most items ordered from BZB Express will be shipped out from our California Warehouse. Will-Calls are only allowed with Appointment Only - Please call Customer Service to set one up between the hours of 9am to 6pm PST.


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Money orders: and personal checks or company checks (may take up to 10 days to clear).
Wire Transfer: ( Bank Transfer ) only for the amount over $500. Contact us for the bank details.
Phone Orders: To place a phone order please call 1.888.660.2962 or 1.916.246.6263 and one of our Customer Service Representatives will take your order (8:00am - 6.00pm PST).

Purchase order: Fax purchase orders to 1.916.672.2557

We Offer A 60-Day Money Back Guarantee: 
Our main goal is to ensure your complete satisfaction with our service and products. If, for any reason, you are not 100% satisfied with your purchase, you can return it within 60 days of the purchase date for a full refund. Our 60-day money back guarantee applies to all of the products we sell, except for: TVs and monitors 20" and larger, Special Order merchandise, or any item indicated as non-returnable. Shipping is not refundable. Prior to returning your purchase, a Return Merchandise Authorization (RMA) number will be provided to you.

Refunds on returned items will be issued in the same payment form as received from the customer at the time of purchase. Once we receive the product and it passes inspection, we will credit your account. Please allow 3 - 6 business days for a credit to appear on your account.

If the item was sent back to us for an exchange, please allow 3 - 5 business days for the replacement to be processed.

No Returns/Exchanges on the following:

TVs and monitors 20" and larger
Special Order merchandise
Any item indicated on the website as non-returnable

For more information see our official Return Policy