The Lea Professional CS34D is a 4-channel professional amplifier delivering 30 watts per channel in a ½ rack space form factor, making it ideal for small to medium-scale installations. As part of the Dante CONNECTSERIES, the world’s first IoT-enabled professional amplifiers, the CS34D offers channel-selectable Hi-Z (70V or 100V) or Lo-Z outputs for clear, reliable audio in installed or live applications.

Cloud and Network Connectivity
The CS34D connects via three methods: the built-in Wi-Fi Access Point, an existing venue Wi-Fi network, or FAST Ethernet LAN using Cat5 or Cat6 cable. With Cloud connectivity, users can remotely control, monitor, and receive notifications from any personal device using the Leaprofessional.cloud platform.

Lea Professional CS34D Key Features

  • Web browser-based UI – control from any device with no software needed

  • Direct LoZ and Hi-Z selectable per channel

  • Proprietary Smart Power Bridge doubles the output of a single channel without sacrificing others

  • 3 connection methods: built-in Wi-Fi AP, existing Wi-Fi, or Ethernet LAN

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

  • 96kHz Analog Devices DSP with input routing, multiple 48dB/Oct crossover filters, 8 parametric EQ filters, speaker limiters, and real-time load monitoring

  • Universal Switch Mode Power Supply (100–240VAC ±10%) with PFC

  • Fully routable analog inputs with backup capabilities

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

  • Highly efficient Class D output stage for low AC current draw

The CS34D combines network flexibility, efficient amplification, and Cloud-based monitoring, making it perfect for AV installers, commercial audio systems, and professional musicians.

Lea Professional CS34D 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
Dante: 4 x 4 Dante at 48kHz, Multicast or Unicast
AES 67: Configurable via the Dante Controller software
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: $1,400.00
Price: $1,400.00
SKU: connect 34D
Catalog: 
Commercial Amplifiers
Brand: 
LEA
Dimensions: 18 in × 11 in × 3 in
Weight: 7 lb