DALI Phantom CI AMP-4750 DSP Amplifier at Vinyl Sound Toronto Canada

The DALI Phantom CI AMP-4750 DSP is a four-channel custom installation amplifier from DALI (Struer, Denmark), available at Vinyl Sound in Toronto, Canada. Powered by 4 x 750 watts of UMAC Class-D amplification developed in Denmark, the AMP-4750 DSP delivers effortless headroom, ultra-low distortion, and integrated Digital Signal Processing with model-specific presets for DALI Phantom S-series and M-series flush-mount loudspeakers. With a total bridged output of 3,000 watts, 70V and 100V line compatibility, Wi-Fi and LAN connectivity, and a web-based Phantom AMP Configurator accessible from any device, the AMP-4750 DSP is engineered for high-performance home cinema installations, in-wall subwoofer systems, and large-scale multi-room audio deployments across residential and commercial environments in Canada.

UMAC Class-D Amplification and Bridgeable Output

The AMP-4750 DSP is built around DALI's Danish-developed UMAC Class-D amplification topology, delivering 4 x 750 watts of continuous output with extremely high power efficiency and ultra-low distortion across the 12 Hz to 20 kHz frequency range. Each pair of channels can be bridged to mono, producing 1,500 watts per bridged pair and a combined total of 3,000 watts from the full four-channel configuration. This headroom makes the AMP-4750 DSP the ideal power source for demanding DALI Phantom M-series and S-series in-ceiling and in-wall speakers, multiple DALI Phantom IW SUB S-100 in-wall subwoofers, and large commercial installations in bars, restaurants, fitness centres, and retail environments. The patented UREC power supply with Power Factor Correction ensures stable, clean power delivery regardless of load, while ultra-quiet fan cooling activates only when thermal conditions require it, keeping the amplifier silent during normal operation.

Integrated DSP and Phantom AMP Configurator

The AMP-4750 DSP includes a comprehensive suite of integrated Digital Signal Processing tools accessible through the web-based Phantom AMP Configurator, operable from any Wi-Fi-enabled computer, tablet, or smartphone. DSP tools include parametric equalisers, audio limiters and compressors, matrix routing, input and output level adjustments, speaker delay, and factory-loaded speaker presets matched to DALI's Phantom S-series and M-series loudspeakers. The configurator also provides remote control of on/off switching, independent volume adjustment per zone, and input and output source selection through a dedicated web and mobile app. A single amplifier can simultaneously drive a stereo speaker pair and a passive subwoofer, and multiple AMP-4750 DSP units can be cascaded for larger multi-zone installations requiring more channels or higher total output.

Flexible Connectivity and Installation Options

The AMP-4750 DSP accommodates a wide range of signal sources and installation configurations. Analog inputs include four stereo RCA unbalanced connections and four balanced inputs via Euroblock connectors, supplemented by a digital coaxial S/PDIF RCA input. Output connections include a stereo RCA analog output and a digital coaxial RCA output for signal routing to additional devices. The amplifier supports 70V and 100V loudspeaker line outputs for distributed audio systems in larger commercial and residential spaces. Trigger inputs for audio signal, mains power, and 12V control allow integration with third-party control systems and automated installation environments. The unit ships with detachable rack-mount ears for 2U rack installation and rubber feet for freestanding placement on any furniture or equipment shelf.

Key Features

• 4 x 750W UMAC Class-D Amplification: Danish-developed UMAC Class-D topology delivers 4 x 750 watts of continuous output with ultra-high efficiency, ultra-low distortion, and a signal-to-noise ratio exceeding 106 dB.
• 3,000W Total Bridgeable Output: Each channel pair bridges to 1,500 watts mono, with a combined maximum output of 3,000 watts across both bridged pairs for driving demanding subwoofer and high-SPL speaker configurations.
• 70V and 100V Line Compatibility: Supports distributed audio loudspeaker line standards for large-scale commercial and multi-room residential installations across extended cable runs.
• Integrated DSP with DALI Speaker Presets: Factory-loaded model-specific presets for DALI Phantom S-series and M-series speakers, with full parametric EQ, limiter, compressor, delay, and routing matrix tools available through the Phantom AMP Configurator.
• Web and Mobile Phantom AMP Configurator: Full DSP configuration and runtime control including zone volume, input selection, and on/off switching via Wi-Fi or LAN ethernet from any connected device.
• Patented UREC Power Supply with PFC: Power Factor Correction ensures stable, efficient power delivery under varying load conditions, reducing mains harmonic distortion and improving amplifier reliability over time.
• Simultaneous Stereo and Subwoofer Drive: A single AMP-4750 DSP can simultaneously power a stereo speaker pair and a passive subwoofer, reducing the number of amplifier units required in a home cinema or multi-room installation.
• Cascadable Multi-Unit Architecture: Multiple AMP-4750 DSP units can be cascaded to expand channel count and total output for larger installations requiring more zones or higher SPL capability.
• Comprehensive Protection Circuitry: Short-circuit, voltage disturbance, over-temperature, and overload protection safeguard connected speakers and the amplifier itself in all operating conditions.
• Flexible Trigger and Control Integration: Audio signal, mains power, and 12V trigger inputs allow seamless integration with third-party custom installation control systems and automated home environments.
• 2U Rack-Mountable with Freestanding Option: Includes detachable rack-mount ears for standard 19-inch rack installation and rubber feet for placement on any shelf or equipment surface.
• Ultra-Quiet Thermal Fan Cooling: Fan cooling activates only when required by thermal conditions, keeping the amplifier acoustically silent during normal residential and commercial operation.

Connections at a Glance

• 4 x Analog unbalanced input (Stereo RCA)
• 4 x Analog balanced input (Euroblock connector)
• 1 x Digital coaxial input (S/PDIF RCA)
• 1 x Stereo analog output (RCA)
• 1 x Digital coaxial output (S/PDIF RCA)
• 70V and 100V loudspeaker line output
• Trigger input: audio signal, mains, and 12V
• Wi-Fi and LAN ethernet network connectivity

Technical Specifications

Frequently Asked Questions

What is the DALI Phantom CI AMP-4750 DSP?

The DALI Phantom CI AMP-4750 DSP is a four-channel custom installation power amplifier from DALI (Struer, Denmark) delivering 4 x 750 watts of UMAC Class-D amplification, integrated Digital Signal Processing with DALI speaker presets, and Wi-Fi and LAN network connectivity for web and mobile control. It supports 70V and 100V loudspeaker lines, bridges to 3,000 watts total mono output, and is available at Vinyl Sound in Toronto, Canada. It is designed for high-performance home cinema, in-wall subwoofer, and large-scale multi-room audio installations.

How does the DALI Phantom CI AMP-4750 DSP compare to the CI AMP-2500 DSP?

The DALI Phantom CI AMP-4750 DSP is the higher-output, four-channel successor to the CI AMP-2500 DSP. The AMP-2500 DSP delivers 2 x 500 watts across two channels and bridges to 1,000 watts mono, while the AMP-4750 DSP delivers 4 x 750 watts across four channels and bridges to 3,000 watts total. The AMP-4750 DSP also adds 70V and 100V line output compatibility for commercial distributed audio, a patented UREC power supply with Power Factor Correction, and cascadable multi-unit architecture, making it the correct choice for larger home cinema installations, multi-subwoofer configurations, and commercial deployments in bars, restaurants, and fitness centres.

What DALI speakers is the CI AMP-4750 DSP designed to work with?

The DALI Phantom CI AMP-4750 DSP is factory-preset to match the DALI Phantom S-series and M-series flush-mount in-ceiling and in-wall loudspeakers, as well as the DALI Phantom IW SUB S-100 in-wall subwoofer. Model-specific DSP presets are provided through the Phantom AMP Configurator and updated on a continuous basis to support the full DALI CI speaker portfolio. The amplifier can also power other 8-ohm nominal in-ceiling and in-wall speakers from other manufacturers in multi-room installations where DALI CI presets are not required.

What is UMAC Class-D amplification?

UMAC is DALI's proprietary Danish-developed Class-D amplification architecture. Class-D amplifiers operate as high-frequency switching amplifiers rather than linear amplifiers, converting the input signal into a pulse-width modulated waveform that drives the output transistors in an on/off switching mode. This approach achieves power conversion efficiencies typically exceeding 90 percent, dramatically reducing heat generation compared to Class-A or Class-AB designs and allowing the AMP-4750 DSP to deliver 3,000 watts total output from a compact 2U rack chassis without requiring active cooling under normal operating conditions.

Can the DALI Phantom CI AMP-4750 DSP be used in commercial installations?

Yes, the DALI Phantom CI AMP-4750 DSP is explicitly designed for both residential and commercial applications. Its 70V and 100V loudspeaker line output compatibility makes it directly suitable for distributed audio systems in bars, restaurants, cafes, fitness centres, retail environments, and other commercial spaces where multiple speakers are connected across long cable runs to a single amplifier zone. The web and mobile Phantom AMP Configurator provides the independent zone volume control and input routing needed to manage multi-zone commercial installations from a single interface.

Where can I buy the DALI Phantom CI AMP-4750 DSP in Toronto or Canada?

The DALI Phantom CI AMP-4750 DSP is available at Vinyl Sound, an authorised DALI dealer in Toronto, Canada. Vinyl Sound serves customers across the Greater Toronto Area and ships throughout Canada. For large custom installation projects requiring multiple amplifier units or integration with other DALI Phantom CI components, the Vinyl Sound team can provide system design guidance and project support.

Can the AMP-4750 DSP integrate with third-party control systems?

Yes, the DALI Phantom CI AMP-4750 DSP integrates with third-party custom installation control systems through its audio signal, mains power, and 12V trigger inputs. These trigger inputs allow the amplifier to be switched on and off automatically by a control processor, smart home system, or source component. Wi-Fi and LAN ethernet connectivity provide additional integration pathways for IP-based control systems, and the web-based Phantom AMP Configurator is accessible from any network-connected device for runtime control of zone volumes, input selection, and system-level DSP adjustments.