The LEA Professional CS3004D is a high-power, four-channel smart amplifier designed for demanding professional audio installations and large-scale sound reinforcement systems. Delivering 3,000 watts per channel at 2Ω, 4Ω, 8Ω, 25V, and 70V/100V, it provides flexible amplification for low-impedance and high-impedance loudspeaker systems. The CONNECTSERIES platform is available in Network Connect and Dante Connect versions, with Dante and AES67 connectivity options for integration into compatible networked audio environments.

The CS3004D supports three network connection methods: its built-in Wi-Fi access point, an existing venue Wi-Fi network, or a wired Ethernet LAN connection using Cat5 or Cat6 cable. Its browser-based Web UI enables setup, control, and monitoring from compatible devices without requiring additional software. LEA Cloud connectivity provides remote control, system monitoring, and notifications from virtually anywhere with an internet connection, without requiring a VPN.

Integrated 96kHz Analog Devices SHARC DSP delivers advanced signal processing, including flexible input routing, linear-phase FIR crossovers, IIR crossover filters, eight-band parametric EQ per channel, up to four seconds of output delay, configurable speaker limiters, and real-time load monitoring. Additional features include Smart Power Bridge technology, selectable low-impedance and high-impedance operation per channel, a universal switch-mode power supply, efficient Class D amplification, and external I/O for remote power control and amplifier health monitoring.

Key Features

• Four-channel smart amplifier delivering 3,000 watts per channel at 2Ω, 4Ω, 8Ω, 25V, and 70V/100V.
• Dante Connect platform with Dante and AES67 connectivity options.
• Three network connection methods: built-in Wi-Fi access point, venue Wi-Fi, or Ethernet LAN.
• Browser-based Web UI for configuration and control without software downloads.
• LEA Cloud enables remote control, monitoring, and notifications without a VPN.
• Selectable low-impedance and high-impedance operation, including 70V or 100V per channel.
• Smart Power Bridge technology supports bridged output across two channels without sacrificing an amplifier channel.
• 96kHz Analog Devices SHARC DSP with FIR crossovers, IIR filters, and parametric EQ.
• Four seconds of output delay per channel, configurable limiting, and real-time load monitoring.
• Efficient Class D output stage with universal 100–240V AC power supply.

Ideal For

• Large-scale commercial audio installations.
• Corporate conference rooms and meeting facilities.
• Educational institutions and lecture halls.
• Houses of worship and performance venues.
• Stadiums, arenas, and hospitality environments.
• Distributed loudspeaker systems requiring networked control and monitoring.

What's in the Box

• LEA Professional CS3004D 4-channel smart amplifier.
• Additional accessories and documentation: Not specified in the supplied product information.

Inputs & Outputs

• Analog Inputs: 4 balanced inputs.
• Input Sensitivity: Selectable 26dB or 34dB.
• Network Connectivity: Built-in Wi-Fi access point, existing Wi-Fi network, and Ethernet LAN via Cat5 or Cat6.
• Network Audio: Dante and AES67 connectivity options.
• Amplifier Outputs: 4 channels with low-impedance and high-impedance operation.
• External I/O Input: Remote on/off control.
• External I/O Output: Amplifier health indication.

Frequently Asked Questions

How much power does the LEA Professional CS3004D deliver?

The CS3004D delivers 3,000 watts per channel at 2Ω, 4Ω, 8Ω, 25V, and 70V/100V.

Does the CS3004D support Dante and AES67?

Yes. The Dante Connect version supports Dante and AES67 connectivity options for compatible networked audio systems.

Can the amplifier be controlled remotely?

Yes. It supports a browser-based Web UI, third-party API control, and LEA Cloud for remote control and monitoring. Cloud control does not require a VPN.

Can each channel operate in low-impedance or high-impedance mode?

Yes. The amplifier supports direct low-impedance and high-impedance operation, with 70V or 100V selectable per channel.

What DSP features are included?

The 96kHz DSP provides input routing, linear-phase FIR crossovers, IIR crossovers up to 48dB per octave, eight-band parametric EQ per channel, four seconds of output delay per channel, configurable limiting, and real-time load monitoring.

What are the power requirements?

The CS3004D operates on 100–240V AC, ±15%, at 50Hz or 60Hz.

Full Technical Specifications

Product Overview

Product Type	High-Power Smart Amplifier
Series	CONNECTSERIES
Model	CS3004D
Amplifier Channels	4
Amplifier Class	Class D
Network Version	Dante Connect
Network Audio Options	Dante and AES67
Smart Power Bridge	Yes

Audio & Amplifier Specifications

Output at 2Ω, 4Ω, 8Ω, 25V, 70V/100V	3,000W per channel
Analog Inputs	4 balanced inputs
Input Sensitivity	Selectable 26dB or 34dB
THD+N	0.1% (20Hz–20kHz)
Frequency Response	20Hz–20kHz, ±0.5dB at 4Ω, 8Ω, 70V, and 100V
Frequency Response at 2Ω	-2.5dB at 20kHz
Signal-to-Noise Ratio	105dB (20Hz–20kHz, referenced to 8Ω)
Crosstalk	70dB (20Hz–20kHz)
Output Configuration	Low-impedance and high-impedance
High-Impedance Selection	70V or 100V per channel
Output Classification	Class D with Smart Power Bridge technology

DSP & Signal Processing

DSP Architecture	Analog Devices SHARC DSP
DSP Processing Rate	96kHz
DSP Core	32-bit with sample rate converters
Input Matrix	Any input routable to any output
Input Priority	Primary and secondary input priority
FIR Crossovers	Linear-phase brickwall FIR
IIR Crossovers	Up to 48dB/octave
Crossover Types	Linkwitz-Riley and Butterworth
Parametric EQ	8 bands per channel
Output Delay	Up to 4 seconds per channel
Output Protection	DC, VHF, AC mains, overtemperature, current limiting, and fan fault detection
Adjustable Limiting	Peak voltage and RMS voltage
Load Monitoring	Real-time load monitoring
Pilot Tone Detection	Internal or external sources

Network & Control

Network Connection Methods	Built-in Wi-Fi access point, existing Wi-Fi, or Ethernet LAN
Ethernet Connection	Cat5 or Cat6 cable
User Interface	Browser-based Web UI
Cloud Control	Remote control, monitoring, and notifications
VPN Requirement for Cloud Control	Not required
Third-Party Control	Third-party API
External I/O Input	Toggles remote on/off

Power & Cooling

AC Mains	100–240V AC, ±15%
Mains Frequency	50Hz or 60Hz
Power Supply	Universal switch-mode power supply
Power Factor Correction	Yes
Cooling System	Front-to-rear variable-speed fan
Fan Noise at Idle	50dB at 1m
Fan Noise at 50% Speed	57dB at 1m
Fan Noise at Full Speed	63dB at 1m

Physical Specifications

Product Dimensions (L × W × H)	17.88 × 19 × 3.5 inches
Product Weight	26 lbs
Shipping Dimensions (L × W × H)	22 × 22.75 × 8 inches
Shipping Weight	30 lbs