NEXO has expanded its amplification and processing portfolio with the launch of the microNXAMP4X1, a four-channel Class-D amplifier and processor designed to provide a flexible, cost-effective solution for its loudspeaker systems, particularly the P+ Series.

Positioned between the nanoNXAMP4 and NXAMPMk2 Powered TD Controllers in terms of power rating, the new unit combines advanced signal processing for all NEXO loudspeakers with four amplifier channels, a universal power supply with Power Factor Correction (PFC) and native Dante connectivity. It is available in touring and fixed installation versions, with connectivity tailored to each application.

Housed in a compact 1U rack-mount chassis, the microNXAMP4X1 features a 1.8-inch colour TFT display on the front panel, providing access to essential information including level meters and IP address. DSP parameters can also be monitored and configured through NEXO’s NeMo remote control software.

Each of the four high-efficiency Class-D amplifier channels delivers 1,000W into 4 Ohms. The channels can be configured in series bridge mode, in parallel to support lower output impedance, or combined to deliver a total output of 4,000W. These operating modes are configurable through the software and require no external adaptors.

The processing platform incorporates two multicore DSPs derived from NEXO’s flagship NXAMPMk2. This provides the hardware capacity to accommodate new processing algorithms and future firmware updates, extending the unit’s potential as NEXO develops its system technologies.

Power flexibility is another consideration in the design. The microNXAMP4X1 supports a continuous usable mains voltage range of 100V to 240V, allowing operation worldwide and with a variety of power generators. Its PFC technology optimises power conversion efficiency while smoothing current draw and limiting spikes, reducing stress on the mains network.

The amplifier also addresses energy consumption in standby mode, with power use designed to conform to ENERGY STAR certification requirements. Users can configure different wake-up options, including network commands, audio-level detection and front-panel activation, allowing standby operation to be adapted to specific installation or deployment requirements.

Commenting on the launch, NEXO Sales and Marketing Director Gareth Collyer says: “microNXAMP4X1 provides installers and rental companies with a highly versatile and cost-effective new amplification and processing solution that significantly reduces the cost of NEXO P+ Series systems in particular.”