LEA Professional CS354D – 4-Channel Dante Amplifier 350W Per Channel
LEA Professional CS354D – 4-Channel Dante Amplifier 350W Per Channel is backordered and will ship as soon as it is back in stock.
Shipping Availability*
Shipping Availability*
Free Ground Shipping on Most Orders Over $250.00
Looking for the best price or expert advice? Give us a call at 1-888-230-3661 or use the Live Chat below. Buying 1 or 100, you may qualify for greater savings beyond the advertised price.
LEA Professional CS354D – 4-Channel Dante Amplifier 350W Per Channel
Product Overview
The LEA Professional CS354D is a 4-channel Dante networked amplifier delivering 350 watts per channel, suited for mid-power commercial AV installations that require distributed digital audio transport alongside a full-featured onboard DSP. Part of the LEA Connect Series, the CS354D combines Dante over IP, analog balanced inputs, cloud management, and a 96kHz DSP engine in a single 1U rack-mount chassis. It is a strong fit for conference rooms, boardrooms, houses of worship, and commercial meeting spaces where both audio performance and remote system management are requirements for the installation. Each channel independently selects between low-impedance and constant-voltage (70V/100V) operation, providing integrators with load flexibility within a single unit.
Product Description
The CS354D delivers 350 watts on each of its four channels, totaling 1,400 watts of system power in a 1U rack-mount form factor suited for mid-scale commercial audio installations. Dante audio transport routes digital audio over standard Gigabit Ethernet, removing the need for point-to-point analog audio cabling across a facility. Analog balanced inputs are included for sources outside the Dante network and are fully routable through the onboard DSP matrix alongside Dante streams. Per-channel output mode selection allows HiZ constant-voltage (70V or 100V) and LoZ (2Ω, 4Ω, 8Ω) operation to coexist within the same unit, making the CS354D adaptable to installations with mixed speaker load requirements.
The LEA Connect Series IoT architecture provides three network connection options: a built-in Wi-Fi access point for direct technician access, Wi-Fi client mode for integration into an existing venue network, and wired Ethernet via Cat5 or Cat6 for a fixed LAN connection. A browser-based Web UI provides full DSP configuration without requiring any software installation on the control device. LEA Cloud extends system access globally over the internet, enabling remote monitoring, control, and fault alerting without a VPN. The onboard Analog Devices Sigma 96kHz DSP processes crossover filtering, parametric EQ, speaker limiting, and load monitoring per channel. Smart Power Bridge technology allows any single channel to deliver doubled output power without removing another channel from operation.
| Specification | Value |
|---|---|
| Channels | 4 |
| Power Output | 350W per channel |
| Total System Power | 1,400W |
| Output Impedance | LoZ (2Ω, 4Ω, 8Ω) or HiZ (70V / 100V), selectable per channel |
| Audio Inputs | Dante (network) + Analog balanced |
| THD+N | 0.1% (20Hz–20kHz) |
| Frequency Response | 20Hz–20kHz, ±0.5dB |
| Signal-to-Noise Ratio | 105dB (ref 8Ω) |
| Crosstalk | 70dB (20Hz–20kHz) |
| DSP | Analog Devices Sigma 96kHz, 32-bit core |
| Amplifier Class | Class-D with Smart Power Bridge |
| AC Mains | 100–240VAC ±15%, 50/60Hz (universal) |
| Form Factor | 1U rack-mount |
| Cooling | Front-to-rear variable speed fan |
| Connectivity | Wi-Fi AP, Wi-Fi client, Fast Ethernet (Cat5/Cat6) |
| Control | Web UI (browser-based), LEA Cloud, 3rd-party API (TCP/WebSocket) |
Key Features
- Dante Audio Transport — Native Dante networking carries audio over standard Gigabit Ethernet, supporting large multi-device audio networks without dedicated analog infrastructure.
- 350W Per Channel — Mid-power output level addresses installations requiring more headroom than entry-level amplifiers while staying within 1U rack space.
- HiZ / LoZ Per-Channel Selection — 70V, 100V, and low-impedance output modes are switchable per channel, supporting mixed load topologies from a single chassis.
- Smart Power Bridge — Any channel can be bridged to double its output power without taking adjacent channels offline, providing design flexibility for asymmetric zone power requirements.
- 96kHz Analog Devices DSP — Onboard processing handles input routing, 48dB/octave crossover filters, 8-band parametric EQ per channel, speaker limiting, and real-time load monitoring.
- Three Network Connection Modes — Built-in Wi-Fi AP, Wi-Fi client, and wired Ethernet (Cat5/Cat6) provide installation flexibility across venue network environments.
- LEA Cloud Management — Remote monitoring, control, and notification from any internet-connected device, without VPN configuration, using AWS IoT Core infrastructure.
- Browser-Based Web UI — Full amplifier configuration from any modern browser on any device; no dedicated software or control terminal required.
- Universal Power Supply — Switch-mode supply with Power Factor Correction operates on 100–240VAC for international deployment compatibility.
- External I/O Port — Remote on/off input and fault status output for integration with building automation, third-party control systems, or custom triggering logic.
- Open Third-Party API — TCP and WebSocket-based API enables control from Crestron, Extron, Q-SYS, and other AV automation platforms.
Typical Applications
- Boardroom and conference room primary amplification
- House of worship main zone and fill speaker systems
- Commercial meeting spaces with Dante-enabled AV systems
- Multi-purpose rooms requiring mid-power zone coverage
- Auditorium reinforcement where networked audio routing is specified
- Government and institutional facilities with networked AV infrastructure
- Training rooms with distributed audio requirements
Technical Specifications
| Category | Specification | Value |
|---|---|---|
| Audio | Channels | 4 |
| Audio | Power Per Channel | 350W |
| Audio | Total System Power | 1,400W |
| Audio | THD+N | 0.1% (20Hz–20kHz) |
| Audio | Frequency Response | 20Hz–20kHz, ±0.5dB @ 4Ω, 8Ω, 70V, 100V |
| Audio | Signal-to-Noise Ratio | 105dB (20Hz–20kHz, ref 8Ω) |
| Audio | Crosstalk | 70dB (20Hz–20kHz) |
| Audio | Output Class | Class-D with Smart Power Bridge |
| Audio | Output Impedance | LoZ: 2Ω / 4Ω / 8Ω; HiZ: 70V / 100V (per channel) |
| Inputs | Analog | Balanced inputs with 26dB / 34dB selectable sensitivity |
| Inputs | Digital | Dante (networked audio over IP) |
| DSP | Processor | Analog Devices Sigma 96kHz, 32-bit core with sample rate converters |
| DSP | Input Routing | Routable matrix — any input to any output |
| DSP | Crossover | Up to 48dB/octave IIR (Linkwitz-Riley and Butterworth) |
| DSP | Parametric EQ | 8-band per channel |
| DSP | Output Delay | Up to 100ms per channel |
| DSP | Limiting | User-adjustable peak and RMS voltage limiting |
| DSP | Load Monitoring | Real-time load monitoring and pilot tone detection |
| DSP | Protection | DC, VHF, AC mains, over-temperature, current limiter, fan fault |
| Network | Dante | Gigabit Ethernet (Audinate Dante protocol) |
| Control | Interface | Browser-based Web UI, LEA Cloud, 3rd-party API (TCP / WebSocket) |
| Control | External I/O | In: remote on/off; Out: amplifier health status |
| Power | AC Mains | 100–240VAC ±15%, 50/60Hz |
| Power | Supply Type | Universal switch-mode with Power Factor Correction |
| Physical | Form Factor | 1U rack-mount |
| Physical | Cooling | Front-to-rear variable speed fan |
Frequently Asked Questions
Q: How does the CS354D compare to the CS704 for commercial installations?
The CS354D is a Dante-enabled 4-channel amplifier at 350W per channel, while the CS704 is a Network Connect model at 700W per channel without Dante. Choose the CS354D when the system uses Dante for digital audio transport; choose the CS704 when higher per-channel power is the priority and analog inputs are sufficient.
Q: Can the CS354D be used in a system with both Dante and non-Dante sources?
Yes. The CS354D includes both Dante inputs and analog balanced inputs. The DSP routing matrix allows any combination of Dante and analog sources to be assigned to any output channel, making it practical in systems that mix Dante-capable and legacy analog devices.
Q: Does the CS354D support 70V distributed speaker systems?
Yes. Each channel can be independently configured for 70V or 100V constant-voltage (HiZ) output, suitable for driving distributed speaker circuits common in commercial paging and background music systems. Individual channels can simultaneously operate in low-impedance mode for direct-drive loudspeaker applications.
Q: How is the CS354D monitored remotely?
LEA Cloud provides real-time remote monitoring, including amplifier health status, fault alerts, and control. LEA Cloud connects via the internet using AWS IoT Core and does not require a VPN. Additionally, the external I/O port can output a fault status signal to a local building management or control system.
Q: What DSP processing is available per channel?
Each channel has access to the onboard Analog Devices Sigma 96kHz DSP which provides: routable input matrix, up to 48dB/octave crossover filters (Linkwitz-Riley and Butterworth), 8-band parametric EQ, user-adjustable peak and RMS limiter, up to 100ms output delay, real-time load monitoring, and pilot tone detection.
Q: What is the warranty on the CS354D?
LEA Professional provides a 5-year warranty internationally. U.S. customers who register their product can extend the warranty to 6 years. Contact your regional distributor for local warranty terms.
At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
Nationwide Audiovisual Services, Design, Installation & Support
Creation Networks is a trusted nationwide partner for complete audiovisual solutions — delivering expert AV system sales, professional design, programming, installation, and ongoing support to organizations across the United States.
From Microsoft Teams Rooms and enterprise video conferencing to LED video walls, live streaming production, and hybrid collaboration systems, we provide end-to-end AV integration using premium, certified technology from industry leaders including Crestron, Q-SYS, Shure, Extron, and Absen.
Whether you operate a single location or manage facilities nationwide, Creation Networks ensures your AV systems are designed for reliability, scalability, security, and long-term performance — helping your organization communicate more effectively and operate at peak efficiency.
CREATION NETWORKS — A PARTNER YOU CAN TRUST SINCE 2006
