JBL CSA 2120Z Audio Amplifier (2 x 120W)

The JBL CSA2120Z is an amplifier designed for installed sound systems, providing 120 watts on each of its two channels and supporting 70 volt or 100 volt speaker lines. It offers contractors a straightforward way to power background music, paging, or more dynamic playback without adding extra transformer hardware.

The 1U chassis is fanless, so it slides into a crowded equipment rack without introducing mechanical noise. That makes it a natural fit for restaurants, offices, boutiques, classrooms, and other places where quiet operation between tracks is as important as reliable volume. Because the amplifier meets Energy Star standards and runs cool, it can stay powered all day with minimal impact on the electric bill.

Built in digital signal processing lets you fine tune the system without outboard gear. Adjust the equalizer to match the room, engage the limiter to protect speakers from sudden peaks, and store those settings so the system sounds consistent shift after shift.

Front panel knobs are illuminated, making it easy to see levels and make quick tweaks even in dim racks or control booths. When the amplifier is mounted remotely, staff can still control volume by adding a JBL CSR V wall controller through a simple RJ45 cable.

The universal power supply accepts 100 to 240 volts at 50 or 60 hertz. Euroblock connectors and the included rack ears shorten installation time, whether you are wiring a new build or updating an existing venue.

From background music in a coffee shop to paging on a retail floor, and from announcements in a school hallway to stereo playback in a training room, the CSA2120Z offers reliable power, flexible control, and audio that stays clear every day.

• 120 watts per channel for audio that stays clear and powerful
• Supports 70 volt and 100 volt distributed speaker lines for flexible installation
• Chassis that is fanless and only 1U tall, operating quietly while saving rack space
• Onboard DSP with EQ and limiting for precise tuning and speaker protection
• Illuminated front panel knobs for easy adjustments in low light
• Compatible with JBL CSR V wall controllers through a standard RJ45 connection
• Universal 100 to 240 volt power supply works with 50 or 60 hertz mains
• Energy Star certification keeps power consumption low
• Comes with rack ears and Euroblock connectors for quick installation