The LEA Professional CS352D Dante Connect Series is a two-channel professional amplifier built for installed sound systems requiring high output power, flexible loudspeaker compatibility, and network-based management. It delivers 350 watts per channel at 4Ω, 8Ω, 25V, 70V, and 100V, along with 175 watts per channel at 2Ω. Each channel can be configured independently for low-impedance, 70V, or 100V operation, allowing the amplifier to accommodate different loudspeaker systems within a single rack-mounted unit.

For audio distribution and processing, the CS352D combines two balanced analog inputs with an 8 × 8 Dante interface supporting 96kHz or 48kHz operation. Its 96kHz Analog Devices Sigma DSP processor provides a routable input matrix with primary and secondary input priority, eight-band parametric EQ per channel, crossover filters up to 48dB per octave, and 100ms of output delay per channel. Smart Power Bridge Technology also enables bridged output functionality without sacrificing an amplifier channel.

The CS352D supports three network connection options: its built-in Wi-Fi access point, an existing Wi-Fi network, or wired Ethernet. Users can configure and monitor the amplifier through its browser-based WebUI, LEA Cloud, or third-party API control. An external I/O port provides remote on/off control and amplifier-health monitoring, while the Class D output stage and universal switch-mode power supply with power factor correction support efficient operation in professional audio installations.

Key Features

• Two-channel professional amplifier delivering 350W per channel at 4Ω, 8Ω, 25V, 70V, and 100V.
• Output rating of 175W per channel at 2Ω.
• 8 × 8 Dante networking at 96kHz or 48kHz, supporting multicast and unicast.
• AES67 configuration through Dante Controller software.
• 96kHz Analog Devices Sigma DSP processor with a 32-bit core and sample rate converters.
• Routable input matrix with primary and secondary input priority.
• Eight-band parametric EQ per channel.
• IIR crossover filters up to 48dB per octave, with Linkwitz-Riley and Butterworth options.
• 100ms output delay per channel.
• User-adjustable peak-voltage and RMS-voltage limiting.
• Universal 100–240V AC power supply with power factor correction.

Ideal For

• Commercial audio installations requiring two amplifier channels with output ratings up to 350W per channel.
• Distributed loudspeaker systems using 70V or 100V lines.
• Low-impedance loudspeaker systems operating at supported impedances.
• Dante-enabled installations requiring networked digital audio distribution.
• Corporate, education, hospitality, and house-of-worship sound systems.
• Installed audio systems requiring remote monitoring, configurable DSP, and loudspeaker protection.

What's in the Box

• Box contents are not specified in the supplied manufacturer information.

Inputs & Outputs

• 2 balanced analog inputs with selectable 26dB and 34dB input sensitivity.
• 8 × 8 Dante digital audio interface supporting 96kHz or 48kHz.
• AES67 support configurable through Dante Controller software.
• 2 amplifier output channels with selectable low-impedance, 70V, or 100V operation.
• Ethernet network connectivity.
• Built-in Wi-Fi access point.
• External I/O input for remote on/off control.
• External I/O output for amplifier-health indication.
• AC power connection.

Frequently Asked Questions

How much power does the CS352D deliver?

It delivers 350W per channel at 4Ω, 8Ω, 25V, 70V, and 100V, and 175W per channel at 2Ω.

Can each channel use a different loudspeaker configuration?

Yes. Each channel can be configured independently for low-impedance, 70V, or 100V operation.

Does the CS352D support Dante and AES67?

Yes. It supports 8 × 8 Dante networking at 96kHz or 48kHz, with multicast and unicast options. AES67 can be configured through Dante Controller software.

What digital signal processing is included?

The integrated DSP provides input routing with primary and secondary input priority, crossover filters, eight-band parametric EQ per channel, output delay, adjustable limiting, output protection, and load monitoring.

How can the amplifier be controlled remotely?

The CS352D supports browser-based WebUI control, LEA Cloud, and third-party APIs. Network access is available through its built-in Wi-Fi access point, an existing Wi-Fi network, or wired Ethernet.

What is Smart Power Bridge Technology?

It enables bridged output functionality without sacrificing an amplifier channel.

What power supply does the amplifier use?

It uses a universal switch-mode power supply with power factor correction and operates at 100–240V AC, ±15%, at 50Hz or 60Hz..

Full Technical Specifications

Audio

Model	CS352D
Amplifier Channels	4
Output at 2Ω	175W per channel
Output at 4Ω, 8Ω, 25V, 70V/100V	350W per channel
Amplifier Output Classification	Class D with proprietary Smart Power Bridge Technology
Analog Inputs	2 balanced inputs
Analog Input Sensitivity	Selectable 26dB and 34dB
Dante	8 × 8 at 96kHz or 48kHz; multicast or unicast
AES67	Configurable through Dante Controller software
THD+N	0.1% from 20Hz to 20kHz
Frequency Response	20Hz–20kHz, ±0.5dB at 4Ω, 8Ω, 70V, and 100V; −2.5dB at 20kHz at 2Ω
Signal-to-Noise Level	105dB from 20Hz to 20kHz, referenced to 8Ω
Crosstalk	70dB from 20Hz to 20kHz

DSP

DSP Architecture	Analog Devices Sigma 96kHz DSP processor with 32-bit core and sample rate converters
Input Matrix	Routable matrix with primary and secondary input priority
Crossovers	IIR filters up to 48dB per octave; Linkwitz-Riley and Butterworth
Parametric EQ	8-band per channel
Output Delay	100ms per channel
Output Protection	DC, VHF, AC mains, overtemperature, current limiter, and fan-fault detection
User-Adjustable Limiting	Peak voltage and RMS voltage
Load Monitoring	Real-time load monitoring and pilot tone detection from internal or external sources

Control, Monitoring & Networking

User Interface	Browser-based WebUI, third-party API control, or LEA Cloud
Network Connection Options	Built-in Wi-Fi access point, existing Wi-Fi network, or wired Ethernet
External I/O Input	Toggles remote on/off
External I/O Output	Indicates amplifier health
AC Mains	100–240V AC, ±15%, 50Hz or 60Hz
Power Supply	Universal switch-mode power supply with power factor correction
Amplifier Output Stage	Class D

Physical Specifications

Product Weight	10 lbs
Product Dimensions (L × W × H)	14.25 × 19 × 1.75 in
Shipping Weight	17.4 lbs
Shipping Dimensions (L × W × H)	20 × 22.75 × 3.75 in
Cooling	Front-to-rear variable-speed fan cooling
Fan Noise at Idle	50dB at 1m
Fan Noise at 50% Speed	57dB at 1m