CTD-2125

Two-channel, 125W/ch. Power Sharing Amplifier with DSP and Dante

CTD-2125
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Crown ComTech D Series amplifiers are designed for versatility, flexibility, and ease of installation. With both Dante inputs and outputs, built-in DSP, power sharing, Lo-Z/Hi-Z switching, and a simple to use web configuration interface, ComTech D amplifiers are ideal for meeting the changing demands of diverse installed audio applications.

The CTD-2125 delivers 125 watts per channel of legendary Crown amplification when all channels are driven equally. Asymmetrical power sharing enables the two channels to share the full 250W in any ratio, offering unparalleled flexibility.

Built-in DSP allows outputs to be tuned specifically for every application and provides the ability to create custom speaker tunings. Factory JBL SpeakerTunings for select JBL models, including Control 400 Series ceiling speakers, are included to simplify the optimization of an all-HARMAN solution.

The amplifier can be configured through the intuitive web interface with any computer or tablet and without the need to install proprietary software. It uses HARMAN's HControl protocol to communicate natively with BSS OMNI Processors or AMX MUSE Automation Controllers and includes an easy-to-use API for integration with 3rd-party control systems.

This compact 1RU, ½ rack width device can be installed in a rack, under a table, or on a wall using the included mounting hardware.

Output Power All Channels Driven

Model Channels Low-Z Hi-Z
CTD-2125 2 125W 125W
CTD-4125 4 125W 125W
CTD-8125 8 125W 125W

Output Power Single Channel Driven - Power Sharing**

Model Low-Z Hi-Z
CTD-2125 250W 250W
CTD-4125 500W 500W
CTD-8125 500W* 500W*

* 500W between Ch 1-4 and 500W between Ch 5-8
** Max available output per channel

  • Dante Inputs and Outputs
  • DSP for Room Tuning and Speaker Tuning
  • Power Sharing
  • WebUI Configuration
  • Lo-Z/Hi-Z switchable outputs
  • Compact Design
  • Factory JBL SpeakerTunings
  • Pilot Tone & Load Monitoring
  • Source Priority Switching
  • GPIO Interface
  • HControl
  Version Language Size Uploaded
Manuals
file type icon User Manual - ComTech D Series
updated: Jan 2026
    8.27 MB Jan 2026
Brochures
file type icon ComTech D Series Brochure
updated: Sep 2025
    6.24 MB Sep 2025
CAD Drawings
file type icon Customer Drawings - CTD-2125
updated: Jan 2026
    5.78 MB Jan 2026
Data Sheets
file type icon Data Sheet - ComTech D Series
updated: Sep 2025
    2.65 MB Sep 2025
Quick Start Guides
file type icon Quick Start Guide - ComTech D Series
updated: Jan 2026
    2.28 MB Jan 2026
Programming Guides
file type icon HControl Protocol - ComTech D Series
updated: Jan 2026
    193 KB Jan 2026

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HARMAN Professional Solutions:

CTD-2125

Two-channel, 125W/ch. Power Sharing Amplifier with DSP and Dante


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