The LEA Professional CS164D Dante Connect Series is a four-channel professional amplifier designed for small to medium-sized commercial audio installations that need flexible loudspeaker configuration and network-based system management. It delivers 160 watts per channel at 4Ω, 8Ω, 25V, 70V, and 100V, with 80 watts per channel at 2Ω. Each channel can be configured independently for low-impedance, 70V, or 100V operation, making the CS164D suitable for distributed loudspeaker systems and installations with different audio zones.

The CS164D combines four balanced analog inputs with an 8 × 8 Dante interface supporting 96kHz or 48kHz operation, including multicast and unicast options. 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 supports bridged output functionality without sacrificing an amplifier channel, while integrated protection and real-time load monitoring help manage connected loudspeaker systems.

For setup and remote operation, the CS164D offers a built-in Wi-Fi access point, connection through an existing Wi-Fi network, or wired Ethernet. Its browser-based WebUI, LEA Cloud, and third-party API support provide flexible ways to configure and monitor the amplifier without dedicated control software. External I/O supports remote on/off control and amplifier-health indication. The Class D output stage and universal switch-mode power supply with power factor correction make it suitable for professional installations requiring multiple amplifier channels and networked control.

Key Features

• Four-channel professional amplifier delivering 160W per channel at 4Ω, 8Ω, 25V, 70V, and 100V.
• Output rating of 80W per channel at 2Ω.
• Independent low-impedance, 70V, or 100V selection for each channel.
• Four balanced analog inputs with selectable 26dB and 34dB input sensitivity.
• 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.
• 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

• Small to medium-sized commercial audio installations.
• Multi-zone sound systems requiring four amplifier channels.
• 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 offices, educational facilities, hospitality venues, and houses of worship.
• Installed audio systems requiring remote control, DSP configuration, and loudspeaker protection.

What's in the Box

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

Inputs & Outputs

• Four 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.
• Four 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 CS164D deliver?

The CS164D delivers 160W per channel at 4Ω, 8Ω, 25V, 70V, and 100V, and 80W 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 CS164D 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 DSP features are 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 real-time load monitoring with pilot tone detection.

How can the amplifier be controlled remotely?

The CS164D 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 CS164D 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	CS164D
Amplifier Channels	4
Output at 2Ω	80W per channel
Output at 4Ω, 8Ω, 25V, 70V/100V	160W per channel
Amplifier Output Classification	Class D with proprietary Smart Power Bridge Technology
Analog Inputs	4 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	Eight-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 Dimensions	14.25 × 19 × 1.75 in
Shipping Dimensions	20 × 22.75 × 3.75 in
Product Weight	12.25 lbs
Shipping Weight	16.55 lbs
Cooling	Front-to-rear variable-speed fan cooling
Fan Noise at Idle	50dB at 1m
Fan Noise at 50% Speed	57dB at 1m