Descripción
The LEA Professional CS704 Connect Series 2800W 4-Channel Class-D Networked Power Amplifier with DSP, Ethernet & Wi-Fi Control is a professional-grade amplifier designed for small to medium-sized commercial audio installations. Delivering 700 watts per channel across four channels, it supports both low-impedance (2Ω, 4Ω, and 8Ω) and high-impedance (70V/100V) speaker systems, providing exceptional flexibility for distributed audio applications. Its highly efficient Class-D architecture ensures reliable performance while reducing power consumption and heat generation.
Powered by a 32-bit / 96 kHz Analog Devices Sigma DSP processor, the CS704 provides advanced audio optimization with flexible input routing, 8-band parametric EQ, 48 dB/octave crossover filters, user-adjustable speaker limiters, output delay, and real-time load monitoring. LEA's proprietary Smart Power Bridge technology allows any individual channel to deliver increased output power when required without compromising the performance of the remaining channels, making it an ideal solution for demanding commercial audio installations.
The CS704 offers comprehensive network connectivity with built-in Wi-Fi, Ethernet, browser-based control, LEA Cloud remote management, and third-party API integration for seamless monitoring and system configuration. Users can connect through the built-in Wi-Fi access point, an existing Wi-Fi network, or a local Ethernet network. Combined with balanced analog inputs, external I/O for remote on/off and fault monitoring, and a universal 100–240V switch-mode power supply with power factor correction, the CS704 is an excellent solution for houses of worship, hospitality venues, educational facilities, retail spaces, corporate environments, and other professional installed sound systems.
Product Specifications:
Power Output: 700W per Channel (2800W Total)
Supported Speaker Loads: 2Ω, 4Ω, 8Ω, 70V, 100V
Analog Inputs: 4 x Balanced Inputs
Input Sensitivity: User Selectable (26 dB / 34 dB)
Amplifier Class: Class D with Smart Power Bridge Technology
THD+N: 0.1% (20Hz–20 kHz)
Frequency Response: 20Hz–20 kHz (±0.5 dB @ 4Ω, 8Ω, 70V, 100V; -2.5 dB @ 20 kHz @ 2Ω)
Signal-to-Noise Ratio: 105 dB
Crosstalk: 70 dB
DSP Processor: Analog Devices Sigma 96kHz, 32-bit Core
Input Matrix: Any Input to Any Output with Priority Routing
Crossovers: Up to 48 dB/Octave (Linkwitz-Riley & Butterworth)
Parametric EQ: 8-Band per Channel
Output Delay: Up to 100 ms per Channel
User Adjustable Limiting: Peak Voltage & RMS Voltage
Load Monitoring: Real-Time Load Monitoring with Internal/External Pilot Tone Detection
Output Protection: DC, VHF, AC Mains, Over-Temperature, Current Limiter & Fan Fault Detection
Network Connectivity: Ethernet, Built-in Wi-Fi & Cloud Control
Wi-Fi Modes: Access Point, Existing Wi-Fi Network, Local Area Network
User Interface: Web Browser, Cloud Control & 3rd Party API
External I/O: Remote On/Off Input & Amplifier Health Output
AC Power: 100–240 VAC ±15%, 50/60 Hz
Power Supply: Universal Switch-Mode Power Supply with Power Factor Correction
Cooling: Front-to-Rear Variable-Speed Fan
Idle Fan Noise: 50 dB @ 1 m
50% Fan Noise: 57 dB @ 1 m
Full-Speed Fan Noise: 63 dB @ 1 m
Rack Size: 1U
Product Dimensions: 14.25" × 19" × 1U (362 × 482 × 44 mm)
Shipping Dimensions: 20" × 22.75" × 3.75" (508 × 578 × 95 mm)
Product Weight: 14 lbs (4 kg)
Shipping Weight: 18.7 lbs (8.5 kg)