The Lea Professional CS124 is a 4-channel, 120-watt per channel amplifier in a compact ½ rack form factor, designed for small to medium-scale audio installations. Part of the Network CONNECTSERIES, the world’s first IoT-enabled professional amplifiers, the CS124 combines powerful performance with modern connectivity and remote management capabilities.

Each channel supports direct HiZ (70V or 100V) or LoZ operation, giving you flexibility in speaker configuration. The CS124 provides three connectivity options: built-in Wi-Fi access point, connection to an existing Wi-Fi network, or FAST Ethernet via Cat5/Cat6 cable, enabling seamless integration into any system.

Harness the power of the Cloud for remote control, monitoring, notifications, and system management from any device. The web-based UI works on any platform with no software installation required. With Smart Power Bridge, users can double the output power of a single channel without sacrificing performance on other channels. Advanced DSP includes 96kHz Analog Devices processing, input routing, crossover filters, parametric EQ, speaker limiters, and real-time load monitoring, giving you professional-grade control over your sound system.

Whether for corporate environments, houses of worship, conference rooms, or classrooms, the CS124 delivers high-efficiency Class D output, universal power compatibility (100–240V), and reliable analog input routing with backup capability for a robust, modern amplifier solution.

Lea Professional CS124 MAIN FEATURES


4 channels, 120W per channel in ½ rack space

  • Direct LoZ and HiZ (70V or 100V) selectable per channel

  • Web browser-based UI—no software required

  • Smart Power Bridge doubles output of any single channel without sacrificing others

  • 3 connectivity options: built-in Wi-Fi AP, existing Wi-Fi network, or FAST Ethernet

  • Cloud connectivity for remote control, monitoring, and notifications

  • 96kHz DSP: input routing, multiple crossover filters, 8 parametric EQs, speaker limiters, real-time load monitoring

  • Universal switch-mode power supply (100–240VAC ±10%)

  • Analog fully routable inputs with backup

  • External I/O for remote on/off and fault monitoring

  • Highly efficient Class D output stage for low AC draw

  • 3rd party API support for integration with leading system processors

Lea Professional CS124 Specifications

AUDIO SPECIFICATIONS
 
INPUTS
Analog: 4 Balanced Inputs with user selectable 26dB, 34dB, and mic level input sensitivity
4 unbalanced RCA inputs with user-selectable 26dB and 34dB input sensitivity
***Note - Unbalanced and RCA inputs share the same analog input channel
 
THD+N
0.1% (20Hz to 20kHz)
FREQUENCY RESPONSE
20Hz to 20kHz, +/- 0.5 dB @ 4Ω, 8Ω, 70V, 100V, -2.5dB @ 20kHz at 2Ω
SIGNAL TO NOISE LEVEL
102dB (20Hz to 20kHz referenced to 8Ω)
CROSSTALK
70dB (20Hz to 20kHz)
AMPLIFIER OUTPUT CLASSIFICATION
Class D with Proprietary Smart Power Bridge Technology allowing bridged output functionality without sacrificing an amplifier channel
DSP
 
DSP ARCHITECTURE
Analog Devices Sigma 96kHz DSP Processor with 32-bit Core with Sample Rate Converters
INPUT MATRIX
Routable matrix; any input to any output with primary and secondary input priority
CROSSOVERS
Up to 48 dB/Octave IIR Filters (Linkwitz Riley and Butterworth)
PARAMETRIC EQ
8 Band Parametric EQ per channel
OUTPUT DELAY
100ms per channel
OUTPUT PROTECTION
DC, VHF, and AC Mains Protection, Overtemp and Current Limiter, fan fault detection
USER ADJUSTABLE LIMITING
Peak Voltage and RMS Voltage
LOAD MONITORING
Realtime Load Monitoring and Pilot Tone Detection from Internal or External Sources
CONTROL, MONITORING, NETWORKING
 
USER INTERFACE
Web Browser User Interface, 3rd Party API control, Cloud control, or SharkWare
EXTERNAL I/O
External I/O In: Toggles Remote On/Off
External I/O Out: Indicates Amplifier Health
4 general Purpose input and output pins for general input
Triggering and output statuses - Coming Soon
OPERATION
 
AC MAINS
100VAC - 240VAC +/- 15% 50Hz or 60Hz
POWER SUPPLY
Universal Switch Mode Power Supply
PHYSICAL SPEC
 
DIMENSIONS (L X W X H)
Product: 11.82” x 8.58” x 1.71" (300.11mm x 218mm x 43.5mm)
Shipping: 18” x 11” x 2.75” (457.2mm x 300mm x 69.85mm)
WEIGHT
7lbs / 4.1kg | Shipping: Coming Soon
COOLING
Front to Rear Variable Fan Speed Cooling
Fan Noise at idle is 50dB @ 1m
Fan Noise at 50% is 57dB @1m
Fan Noise at full speed is 63dB @ 1m
List price: $1,500.00
Price: $1,500.00
SKU: connect 124
Catalog: 
Commercial Amplifiers
Brand: 
LEA
Dimensions: 18 in × 11 in × 3 in
Weight: 7 lb