CSA 240Z/280Z/2120Z

2 x 40/80/120W Audio Amplifiers

CSA 240Z/280Z/2120Z
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By combining years of innovation, invention and insight from HARMAN brands, JBL® Commercial Series Amplifiers (CSA) go well beyond the expected in generating powerful sound.

From the switch-mode universal power supply to the efficient performance of Crown’s DriveCore™ Technology, we continue to set new standards in commercial power amplifier technology.

Simple to configure, the Commercial Series amp provides a DriveCore-based sound solution. This replaces up to 500 parts with one small chip, significantly reducing the part count and increasing reliability while maintaining superb performance.

Supporting 70V and 100V installations out of the box, Commercial Series amps include RJ45 connectors for use with JBL CSR-V in-wall volume controls. Its universal power supply allows every Commercial Series amp to accept AC voltages from 100 to 240 VAC, 50/60 Hz.

And with HARMAN’s GreenEdge™ environmental initiative, Commercial Series amps quickly pay for themselves in energy savings.

Energy Star Certified


  • 1 or 2 output channels with 40W, 80W, 120W per channel
  • Built-in 70V and 100V
  • Fanless, space-saving 1U design
  • Sleep mode disable function
  • Energy-efficient amplifier
  • Sleek industrial look with illuminated rings making knobs easy to see and use
  • Supports JBL CSR-V wall controller via CAT5 cable with RJ45 connectors
  • Universal power supply
  • Energy Star® Certified


  Version Language Size Uploaded
file type icon CSA 240Z/280Z/2120Z Owner's Manual-English
en updated: Sep 2023
  en  1,64 MB Sep 2023
file type icon CSA 240Z/280Z/2120Z Owner's Manual-Chinese
zh updated: Sep 2023
  zh  2,08 MB Sep 2023
file type icon JBL Commercial Series Gatefold
updated: Apr 2020
    1,31 MB Apr 2020
file type icon JBL Commercial Brochure
updated: Apr 2020
    1,64 MB Apr 2020
Application Guides
file type icon CSA Application Guide - Home
updated: Apr 2020
    808 KB Apr 2020
file type icon CSA Application Guide - Retail Store
updated: Apr 2020
    784 KB Apr 2020
Quick Reference Guides
file type icon GreenEdge QRG
updated: Aug 2015
    1,1 MB Aug 2015
Power Draw & Thermal Dissipation Specs
file type icon CSA Series Power Draw & Thermal
updated: Aug 2015
    51,2 KB Aug 2015

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Parts & Service


Power Output 40W/80W/120W
Output Channels 2
Input Sensitivity 1.4Vrms for 8-ohms
Phantom Power 27VDC
AC Line Voltage 100 - 240V, 50/60 Hz
Input Impedance 20K ohms/50K ohms
Dimensions 1.75” x 8.5” x 12” (44.45mm x 215.9mm x 304.8mm)
Included Accessories Rack mounting kit


HARMAN Professional Solutions:

CSA 240Z/280Z/2120Z

2 x 40/80/120W Audio Amplifiers