The LEA Professional CS1504D is a high-power, four-channel smart amplifier designed for professional audio installations requiring reliable performance, flexible connectivity, and advanced system control. Delivering 1,500 watts per channel at 2Ω, 4Ω, 8Ω, and 70V/100V, it supports a wide range of low-impedance and high-impedance loudspeaker applications. Its Dante Connect platform includes Dante and AES67 connectivity options for integration into compatible networked audio systems.

The CS1504D offers three convenient networking methods: its built-in Wi-Fi access point, an existing Wi-Fi network, or a wired Ethernet LAN connection. Its browser-based Web UI allows users to configure, control, and monitor the amplifier from compatible devices without installing additional software. LEA Cloud connectivity enables remote control, monitoring, and notifications from virtually anywhere with an internet connection, without requiring a VPN.

Advanced onboard DSP provides flexible input routing, linear-phase FIR crossovers, IIR crossover filters, eight-band parametric EQ per channel, up to four seconds of output delay, adjustable speaker limiters, and real-time load monitoring. Additional features include Smart Power Bridge technology, a universal switch-mode power supply with power factor correction, front-to-rear variable-speed cooling, and an external I/O port for remote power control and amplifier health monitoring.

Key Features

• Four-channel smart amplifier delivering 1,500 watts per channel at 2Ω, 4Ω, 8Ω, and 70V/100V.
• Dante Connect platform with Dante and AES67 network audio connectivity options.
• Three network connection methods: built-in Wi-Fi access point, existing Wi-Fi, or Ethernet LAN.
• Browser-based Web UI for setup and control without software downloads.
• LEA Cloud connectivity for remote control, monitoring, and notifications without a VPN.
• Direct low-impedance and high-impedance operation with selectable 70V or 100V per channel.
• Smart Power Bridge technology enables bridged output without sacrificing another amplifier channel.
• 96kHz Analog Devices DSP with FIR crossovers, IIR filters, parametric EQ, and output delay.
• Real-time load monitoring, pilot tone detection, and configurable output protection.
• Universal 100–240V AC power supply with power factor correction and efficient Class D amplification.

Ideal For

• Corporate meeting rooms and conference facilities.
• Educational institutions and lecture halls.
• Houses of worship and performance spaces.
• Hospitality venues and commercial audio installations.
• Stadiums, arenas, and large distributed loudspeaker systems.
• Networked audio installations requiring remote monitoring and control.

What's in the Box

• LEA Professional CS1504D 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.
• Network Audio: Dante and AES67 connectivity options.
• External I/O Input: Remote on/off control.
• External I/O Output: Amplifier health indication.
• Amplifier Outputs: Four channels with low-impedance and high-impedance operation.

Frequently Asked Questions

How much power does the LEA Professional CS1504D deliver?

The CS1504D delivers 1,500 watts per channel at 2Ω, 4Ω, 8Ω, and 70V/100V. Its rated output at 25V is 600 watts per channel.

Does the CS1504D support Dante and AES67?

Yes. The CS1504D is part of the Dante Connect Series, which offers Dante and AES67 connectivity options for compatible networked audio systems.

Can the amplifier be controlled remotely?

Yes. Users can access the browser-based Web UI or use LEA Cloud to control and monitor the amplifier remotely. Cloud access does not require a VPN.

What loudspeaker configurations does it support?

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

Does the CS1504D include onboard DSP?

Yes. Its 96kHz DSP includes input routing, FIR and IIR crossovers, eight-band parametric EQ per channel, output delay, configurable limiters, and real-time load monitoring.

What are the amplifier's power requirements?

The CS1504D operates on 100–240V AC, ±15%, at 50Hz or 60Hz.

Full Technical Specifications

Product Overview

Product Type	High-Power Smart Amplifier
Series	CONNECTSERIES
Model	CS1504D
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, 70V/100V	1,500W per channel
Output at 25V	600W 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

DSP & Signal Processing

DSP Architecture	Analog Devices Sigma 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
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
External I/O Output	Indicates amplifier health

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)	20 × 23 × 8 inches
Shipping Weight	30 lbs