Description
The LEA Professional CS34 is a compact 4-channel Class D smart power amplifier engineered for small to medium-sized sound installations. Delivering 30W per channel, it supports both low-impedance and high-impedance applications with selectable 70V or 100V operation on each channel. Equipped with a powerful 32-bit/96kHz DSP engine and Smart Power Bridge technology, the CS34 provides flexible, high-performance audio processing in a space-saving half-rack design.
Designed for modern networked AV systems, the CS34 offers three convenient connection options: a built-in Wi-Fi access point, connection to an existing Wi-Fi network, or Cat 5/Cat 6 Ethernet. Its browser-based Web UI allows configuration and monitoring from virtually any device without additional software, while LEA Cloud enables secure remote management from anywhere. Advanced DSP features include input routing, linear-phase FIR filters, crossover filters, parametric EQ, user-configurable speaker limiters, real-time load monitoring, and extensive delay capabilities. Support for third-party APIs and balanced analog I/O with GPI/O provides seamless integration into professional control systems.
Built for reliable, efficient operation, the CS34 features a universal switch-mode power supply, highly efficient Class D amplification, and balanced Amphenol Anytek connectors alongside unbalanced RCA inputs for flexible connectivity. Smart Power Bridge technology allows any channel to deliver increased power without affecting the remaining channels, while comprehensive protection and monitoring features ensure dependable performance. Supplied with I/O connectors and a power cord, the CS34 is an ideal solution for commercial audio, hospitality, education, and other professional AV installations.
Product Specifications:
Input Channels: 4 Balanced Inputs, 4 RCA Inputs
Input Type: Analog
Balanced Inputs: 4
RCA Inputs: 4 Unbalanced
Input Sensitivity: 26dB / 34dB / Mic Level
Input Configuration: User Selectable
THD+N: 0.1% (20Hz–20kHz)
Frequency Response: 20Hz–20kHz ±0.5dB
Frequency Response (2Ω): -2.5dB @ 20kHz
Signal to Noise Ratio: 102dB (20Hz–20kHz @ 8Ω)
Crosstalk: 70dB (20Hz–20kHz)
Amplifier Class: Class D
Output Technology: Smart Power Bridge Technology
Bridged Output: Yes
DSP Processor: Analog Devices Sigma DSP
DSP Sample Rate: 96kHz
DSP Core: 32-Bit
Sample Rate Converter: Integrated
Input Matrix: Routable Matrix
Matrix Mixer: Yes
Crossover Filters: IIR Filters
Crossover Types: Linkwitz-Riley, Butterworth
Crossover Slope: Up To 48dB/Octave
Parametric EQ: 8-Band Per Channel
Output Delay: 100ms Per Channel
Limiter Control: Peak Voltage, RMS Voltage
Output Protection: DC, VHF, AC Mains, Overtemperature, Current Limiter
Fan Protection: Fan Fault Detection
Load Monitoring: Real-Time Load Monitoring
Pilot Tone Detection: Internal and External Sources
User Interface: Web Browser
Control Options: API Control, Cloud Control, SharkWare
External I/O Input: Remote On/Off
External I/O Output: Amplifier Health Status
GPIO: 4 General Purpose I/O Pins
AC Input Voltage: 100VAC–240VAC ±15%
AC Frequency: 50Hz / 60Hz
Power Supply: Universal Switch Mode
Cooling System: Variable Speed Fan
Cooling Direction: Front to Rear
Fan Noise (Idle): 50dB @ 1m
Fan Noise (50%): 57dB @ 1m
Fan Noise (Full Speed): 63dB @ 1m
Product Weight: 7 lbs / 4.1 kg
Product Dimensions (L x W x H): 11.82” x 8.58” x 1.71″ (300.11mm x 218mm x 43.5mm)
Shipping Dimensions (L x W x H): 18” x 11” x 2.75” (457.2mm x 300mm x 69.85mm)