Crown CTD-4125 – 4-Channel 125W Dante Installed Amplifier

Product Overview

The Crown CTD-4125 is a 4-channel, 125W per channel Dante-enabled installed sound amplifier designed for modern networked AV environments. Supporting both Dante and AES67 standards, it integrates seamlessly into IP audio networks, eliminating traditional analog signal runs while doubling the channel count of the CTD-2125. The CTD-4125 also supports 70V/100V distributed audio output for wide-coverage commercial installations. Its rack-mount form factor and powerful feature set make it an ideal solution for larger conference rooms, multi-room hospitality, and zoned retail environments.

Product Description

The Crown CTD-4125 delivers 125 watts per channel across four independent output channels, providing versatile amplification for multi-zone installed sound applications. Dante networking transmits audio signals over standard Ethernet infrastructure, eliminating analog cable runs and simplifying system design. AES67 compatibility ensures interoperability with a broad ecosystem of audio-over-IP devices, providing integrators flexibility across mixed-protocol environments. The CTD-4125 supports 70V and 100V constant-voltage output on all channels, enabling efficient distribution to multiple loudspeakers across extended cable runs. Onboard DSP handles equalization, delay, and protection processing without requiring additional hardware. The amplifier fits in a standard 19-inch rack, making it suitable for AV closets and equipment rooms. Crown's DriveCore technology ensures high efficiency and low heat output for cost-effective long-term operation. Front panel indicators provide real-time status feedback. Universal AC input supports global power standards. The CTD-4125 is backed by Crown's proven reliability and Harman's worldwide service network.

Key Features

• Dante Networking: Native Dante audio networking over standard Ethernet simplifies routing and eliminates analog infrastructure.
• AES67 Compatible: Open interoperability standard ensures integration with diverse AoIP ecosystems.
• 4-Channel Output: Four independent channels at 125W each for flexible multi-zone distribution.
• 70V/100V Support: Constant-voltage output for commercial distributed loudspeaker systems.
• Integrated DSP: Built-in EQ, delay, and dynamic protection eliminates external processing hardware.
• Rack-Mount Design: Standard 19-inch form factor for equipment rack installation.
• High-Efficiency Amplification: DriveCore technology minimizes power consumption and heat generation.
• Universal AC Input: Compatible with worldwide voltage requirements.
• Front Panel Indicators: LED status monitoring for power, signal, and fault conditions.

Typical Applications

• Conference Room: Drive multiple ceiling speaker zones from a single Dante-networked amplifier in boardrooms and training facilities.
• Hospitality: Power four independent audio zones across hotel lobbies, restaurants, bars, and common areas.
• Retail: Deliver zoned background music and paging across multiple departments or store sections.
• Multi-Zone Audio: Serve as a distributed endpoint in larger Dante or AES67 networked audio systems.

Technical Specifications

Frequently Asked Questions

How does the CTD-4125 differ from the CTD-2125?

The CTD-4125 offers four output channels compared to the two channels of the CTD-2125, making it better suited for installations requiring more zones from a single amplifier unit.

Can the CTD-4125 connect to a Dante network without additional hardware?

Yes. The CTD-4125 has native Dante networking built in and connects directly to a standard Ethernet switch—no additional Dante interface hardware is required.

Does the CTD-4125 support 70V distributed audio?

Yes. All four channels support 70V and 100V constant-voltage output for commercial distributed loudspeaker systems with extended cable runs.

What DSP functions are available onboard?

The integrated DSP provides equalization, programmable delay, and dynamic protection processing for all channels, minimizing the need for external signal processing equipment.

Is the CTD-4125 compatible with non-Dante audio systems?

Yes. AES67 support enables the CTD-4125 to work with other AES67-compliant audio-over-IP systems, ensuring broad interoperability in mixed-protocol installations.