At Integrated Systems Europe 2026 in Barcelona, Danish loudspeaker specialist DALI introduced a new amplifier aimed squarely at the custom-installation market. The DALI PHANTOM CI AMP-4125 DSP is a compact, four-channel Class D amplifier with integrated digital signal processing, designed to power everything from discreet in-wall speakers to multi-zone commercial audio systems.
With the PHANTOM CI AMP-4125 DSP, DALI is clearly targeting a growing segment of the audio industry where reliability, predictable performance, and fast commissioning are often more important than sheer output power. The new amplifier is built to integrate seamlessly into racks, control systems, and distributed audio setups, whether in residential or commercial environments.
DALI PHANTOM CI AMP-4125 DSP compact 4-channel amplifier in a half-rack installation chassis.
Built for the realities of custom installation
Modern installation projects place strict demands on audio hardware. Integrators need compact equipment that runs cool, fits easily into racks, and can be configured quickly without complex manual tuning. The PHANTOM CI AMP-4125 DSP is designed around those exact priorities.
Housed in a half-rack, 1U-high chassis, the amplifier is easy to integrate into both small residential racks and larger commercial systems. The Class D output stage ensures high efficiency and low heat generation, making it suitable for enclosed spaces where ventilation is limited.
Despite its small footprint, the amplifier delivers solid output. It provides four channels of 125 watts, suitable for multi-room zones, surround channels, or distributed audio applications. For more demanding loudspeakers, channels can be bridged, providing two channels of up to 250 watts.
Rear panel connections of the PHANTOM CI AMP-4125 DSP designed for multi-zone custom installations.
Integrated DSP with dedicated DALI presets
One of the defining features of the PHANTOM CI AMP-4125 DSP is its built-in digital signal processing. Instead of leaving tuning entirely to the installer, DALI provides preconfigured presets specifically optimized for its PHANTOM in-wall and in-ceiling speakers.
The goal is consistency. With the correct preset selected, the system is designed to deliver predictable sound performance without extensive manual EQ work. For integrators, this can significantly reduce setup time and ensure similar results across multiple installations.
The DSP section also includes the expected tools for custom work, such as equalization, delay, routing, and dynamics processing. This allows the amplifier to be used not only with DALI speakers but also as a flexible platform in more complex audio systems.
The Class D output stage delivers four channels of 125 watts in a compact, efficient design.
Browser-based configuration
Configuration is handled through a web-based interface called the DALI AMP CONFIGURATOR. Installers can access the amplifier from any device with a web browser, making setup possible from a laptop, tablet, or even a smartphone.
From the interface, users can:
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Select loudspeaker presets
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Adjust equalization and dynamics
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Configure routing and zones
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Set delay times
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Save and recall system profiles
This approach simplifies both initial commissioning and later adjustments, which is particularly useful in multi-zone or commercial installations where changes may be required after deployment.
Web-configured DSP amplifier built for DALI PHANTOM in-wall and in-ceiling loudspeakers.
Flexible use across residential and commercial projects
The PHANTOM CI AMP-4125 DSP is designed as a universal installation amplifier. In residential setups, it can power surround channels in a home cinema or drive multiple rooms in a whole-house audio system. In commercial environments, it can handle background music in restaurants, retail stores, fitness centers, or outdoor spaces.
Its compact form factor, integrated DSP, and flexible channel configuration make it suitable for a wide range of scenarios, from small residential racks to larger distributed audio networks.
PHANTOM CI AMP-4125 DSP integrated into a rack-mounted custom installation system.
A practical addition to the PHANTOM ecosystem
With the PHANTOM CI AMP-4125 DSP, DALI is expanding its custom-installation portfolio beyond loudspeakers and into the electronics that drive them. Rather than focusing on maximum power or audiophile-style extravagance, the new amplifier is clearly engineered around the needs of installers: efficiency, compact size, easy configuration, and predictable results.
For integrators working with DALI’s in-wall and in-ceiling speakers, the PHANTOM CI AMP-4125 DSP looks like a practical, purpose-built solution that simplifies both planning and installation—exactly what modern custom audio projects demand.
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