LEA Professional 640W 4-Channel Networked Amplifier

Powerful 4-Channel Amplifier for Commercial AV Installations
The LEA Professional Connect 164D is a 4-channel Class-D power amplifier built for small to mid-sized sound system installations that demand reliability, flexibility, and efficient networking. It delivers 160 watts per channel at 2, 4, or 8 ohms and supports 25V, 70V, or 100V high-impedance outputs, giving installers the freedom to mix and match speaker loads per project requirements. Designed to handle distributed audio, paging, and background music applications, it’s a go-to choice for houses of worship, schools, hospitality, and corporate AV.

Hybrid Connectivity with Dante, Ethernet, and Wi-Fi
With three network connection options—standard Ethernet, built-in Wi-Fi, and dual Dante ports—the Connect 164D is prepared for nearly any installation environment. Dante audio networking enables low-latency, high-fidelity multi-channel signal distribution over Cat5 or Cat6 cabling. Wi-Fi access-point mode and local network support make configuration possible without hardwired network infrastructure, while the Ethernet port ensures stable, secure LAN integration. It's a smart solution for connected audio systems with remote control needs.

Smart Power Bridge Expands Your Output Options
The LEA Smart Power Bridge feature allows two output channels to combine, effectively doubling power output on a single channel. This means more output per speaker zone when you need it—without compromising the performance of other channels. The flexibility to switch between Lo-Z and Hi-Z per channel and enable Power Bridge mode empowers integrators to meet complex system requirements using fewer devices and less rack space.

Precision Audio Processing with Built-In DSP
A 32-bit / 96 kHz DSP processor is onboard for fine-tuned control over your audio. The integrated DSP handles crossover filtering, EQ, limiting, and delay—all without the need for external processors. These tools ensure consistent, clean output even across challenging acoustic environments. Whether optimizing zones or fine-tuning speaker performance, the onboard DSP provides installers with the right tools for exceptional audio clarity.

Remote Monitoring and IoT Cloud Control Compatibility
One of the standout features of the Connect 164D is its ability to integrate with LEA's Cloud-based IoT monitoring system. Once connected, installers and facility managers can monitor system performance, receive real-time alerts, and control amplifier settings remotely—from anywhere with internet access. This remote capability helps reduce truck rolls and downtime while keeping maintenance streamlined and proactive.

Flexible Analog I/O and Installation-Ready Accessories
Each amplifier comes equipped with Amphenol Anytek terminal block connectors for analog balanced line-level inputs and speaker outputs. An additional external I/O provides control interfacing for muting, fault monitoring, and status indication. The package includes terminal connectors, a power cord, and front-panel washable air filters, so installers can get started immediately with everything they need to wire and deploy the system efficiently.

Space-Saving and Energy-Efficient Design
Designed for modern rack environments, the Connect 164D maintains a compact 1RU form factor. Its energy-efficient Class-D topology ensures cool operation, making it ideal for dense AV system builds. Despite its small footprint, this amplifier delivers consistent output with low power consumption, reducing HVAC demand and lowering long-term operating costs in professional venues.