CST-2120
Discontinued

70V/100V Transformer Kit

CST-2120
Larger Images

The rack-mountable JBL CST-2120 transformer module provides impedance and voltage matching for the CSA-2120 amplifier to drive 70V and 100V distributed speaker systems.

Features

  • Providing two channels for constant voltage operation
  • 70V/100V Outputs
  • Rack-mountable with CSA2120
  • Detachable block input and output connectors

Downloads

Documents
  Language Size Uploaded
file type icon CST-2120 Cut Sheet-English
en updated: Apr 2026
en  322 KB Apr 2026
file type icon CST-2120 Cut Sheet-Chinese
zh updated: Apr 2026
zh  915 KB Apr 2026
file type icon CST-2120 Owner's Manual-Chinese
zh updated: Apr 2026
zh  4.34 MB Apr 2026
Brochures
  Size Uploaded
file type icon JBL Commercial Brochure
updated: Apr 2020
1.64 MB Apr 2020
Application Guides
  Version Size Uploaded
file type icon Series Application Guide (English)
version 1.7, updated: Apr 2020
1.7  6.89 MB Apr 2020
Owner's Manuals
  Language Size Uploaded
de  3.65 MB Apr 2020
en  9.11 MB Apr 2020
es  3.82 MB Apr 2020
fr  3.72 MB Apr 2020
Quick Start Guides
  Language Size Uploaded
file type icon CST-2120 - Quick Start Guide
en updated: Apr 2020
en  4.34 MB Apr 2020

If any of the links above result in strange characters in your browser, please right-click the file to save it to your computer.

Parts & Service

Specifications

Max Input Power 120W/Ch
Max Input Voltage 32Vrms
Insertion Loss Less than 1dB
Frequency Response +/-1 dB @ 70Hz - 15kHz
Dimensions 8.2" x 1.7" x 7" (209 mm x 44 mm x 178 mm)

Support/FAQs

HARMAN Professional Solutions:

CST-2120
Discontinued

70V/100V Transformer Kit