The LEA Professional CS352-ADSP is a two-channel Class-D power amplifier designed for professional audio installations in small- to medium-sized venues. Delivering 350W per channel, it supports low-impedance speaker loads and high-impedance distributed audio systems. Its compact rackmount design makes it suitable for commercial AV environments, conference rooms, hospitality spaces, and other installed sound applications.

Featuring a 96 kHz Analog Devices DSP, the CS352 provides advanced audio processing, including linear-phase FIR crossover filters, parametric EQ, input delay, speaker limiters, and input routing. Its processing capabilities enable precise system tuning and flexible configuration for different loudspeaker requirements. Smart Power Bridge technology allows dynamic power allocation to help accommodate changing channel demands.

The CS352 offers built-in Wi-Fi, a 100 Mbps Ethernet connection, and web browser-based control for convenient configuration and monitoring. Balanced analog inputs, speaker outputs, and an external control connection support integration into professional AV systems. A universal power supply, variable-speed cooling fan, and removable, washable front air-intake filters help support reliable operation in demanding installation environments.

Key Features

• Two-channel Class-D amplifier delivering 350W per channel.
• Supports low-impedance and 70V/100V distributed audio systems.
• 96 kHz DSP with linear-phase FIR crossover filters.
• Eight parametric EQ filters and configurable speaker limiters.
• Built-in Wi-Fi and Ethernet for network-based control.
• Smart Power Bridge technology for dynamic power allocation.

Ideal For

• Commercial AV installations.
• Conference rooms and corporate offices.
• Restaurants, hotels, and hospitality venues.
• Distributed 70V/100V audio systems.
• Network-controlled sound installations.
• Professional background music and paging systems.

What’s in the Box

• Commercial AV installations.
• Conference rooms and corporate offices.
• Restaurants, hotels, and hospitality venues.
• Distributed 70V/100V audio systems.
• Network-controlled sound installations.
• Professional background music and paging systems.

Inputs & Outputs

• Analog Inputs: 2 × balanced 3-pin block terminal inputs.
• Speaker Outputs: 2 × 2-pin block terminal outputs.
• Ethernet: 1 × RJ45, 100 Mbps.
• Remote I/O: 1 × block terminal control connection.
• Wireless: Built-in Wi-Fi with access-point and local network support.
• USB: No USB connection specified.
• Digital Audio: No dedicated digital audio I/O specified.

Frequently Asked Questions

How many channels does the LEA Professional CS352 provide?

The CS352 is a two-channel power amplifier designed to drive two independent amplifier channels for installed audio applications.

How much power does the CS352 deliver?

The CS352 is rated at 350W per channel according to the supplied specifications. Actual output depends on the supported load and operating configuration.

Does the CS352 support 70V and 100V speaker systems?

Yes. The amplifier supports high-impedance distributed audio systems, including 70V and 100V operation, subject to the manufacturer's specified operating modes and ratings.

Can the CS352 be controlled over a network?

Yes. The amplifier supports web browser-based control through its Ethernet connection and built-in Wi-Fi, including access-point and local Wi-Fi operation.

What is Smart Power Bridge technology?

Smart Power Bridge technology dynamically reallocates available amplifier power to accommodate channel requirements. The actual power available depends on the amplifier's specified operating configuration.

Full Technical Specifications

Amplifier Specifications

Amplifier Type	Class-D
Number of Channels	2
Power Rating per Channel	350W per channel, according to supplied specifications
Supported Impedance	2, 4, and 8 Ohms, as described in the overview
Constant-Voltage Outputs	70V and 100V; 25V support is also stated in the overview
Total Rated Power	700W, based on the supplied 2 × 350W rating

Performance

AD/DA Conversion	32-bit
DSP Processing	32-bit DSP at 96 kHz
Crossover Filters	Linear-phase FIR crossover filters
Equalization	8-band parametric EQ
Dynamics Processing	Compressor and peak limiter
Input Delay	Up to 4 seconds
Input Routing	Fully routable analog inputs with backup capabilities
Speaker Tuning	FIR-based speaker tunings
Monitoring	Real-time load monitoring

Connectivity

Analog Inputs	2 × balanced 3-pin block terminal inputs
Speaker Outputs	2 × 2-pin block terminal outputs
Ethernet	1 × RJ45, 100 Mbps
Wireless	Built-in Wi-Fi
Wi-Fi Modes	Access-point and local Wi-Fi
Remote I/O	1 × block terminal control connection
Digital Audio I/O	No dedicated digital audio I/O specified
USB I/O	No USB I/O specified
Phantom Power	Not specified in the supplied overview
Control Interface	Web browser-based user interface
Third-Party Integration	API support for compatible system processors

Power & Cooling

AC Input	100–240 VAC, 50/60 Hz
AC Voltage Tolerance	±10%, as stated in the overview
AC Power Connector	1 × IEC
Cooling	1 × variable-speed fan
Power Supply Type	Universal switched-mode power supply with PFC
PoE Startup	Under 10 seconds from power-on to audio, as stated in the overview

Physical Specifications

Display	Backlit LCD
Rackmount Size	1U
Cooling System	1 × variable-speed fan
Product Weight	10 lbs
Product Dimensions (L × W × H)	19" x 14.25" x 1.75"
Shipping Weight	17.4 lbs.
Shipping Dimensions (L × W × H)	20" x 22.75" x 3.75"