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LEA Professional Connect 354 4-Channel Smart Amplifier

The LEA Professional Connect 354 is an IoT-enabled install amplifier with 4 channels rated at 350 W each into 4 ohms, 8 ohms, 70V or 100V, with impedance selectable per channel so a single unit can feed low-impedance and constant-voltage zones at the same time. At 350 watts per channel it drives real full-range loudspeakers, so it lands in bars, fitness studios, worship rooms, and anywhere the system has to be heard over a crowd.

Setup and monitoring run in a web browser with no software to install, reached through the amplifier's own Wi-Fi access point, an existing wireless network, or a wired LAN, and the same interface is available remotely through LEA Cloud. Onboard processing is a 96 kHz Analog Devices Sigma DSP with a routable input matrix, 48 dB per octave crossovers, eight bands of parametric EQ per channel, user-adjustable speaker limiters, and real-time load monitoring. An external I/O port handles remote power and fault reporting, and the universal switch-mode supply with power factor correction runs on anything from 100 to 240 VAC. The D models add Dante audio over IP alongside the analog inputs.

Channels4
Output per Channel350 W at 4 ohms, 8 ohms, 70V and 100V; 175 W at 2 ohms
Amplifier ClassClass D with Smart Power Bridge, bridged output without sacrificing a channel
InputsBalanced analog, user-selectable 26 dB / 34 dB input sensitivity
THD+N0.1% (20 Hz to 20 kHz)
Frequency Response20 Hz - 20 kHz, +/- 0.5 dB at 4, 8 ohms, 70V and 100V
Signal to Noise105 dB (20 Hz to 20 kHz, referenced to 8 ohms)
DSPAnalog Devices Sigma 96 kHz, 32-bit core, 48 dB/oct crossovers, 8 parametric EQ, limiters
Power SupplyUniversal switch-mode with PFC, 100 - 240 VAC +/- 15%
Dimensions14.25 x 19 in, 1U rack (362 x 482 mm)
Weight14 lb (4 kg)
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