LEA Professional CS1504D – 15-Channel Dante Networked Amplifier
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LEA Professional CS1504D – 15-Channel Dante Networked Amplifier
Product Overview
The LEA Professional CS1504D is a 15-channel, 500-watt-per-channel Dante networked amplifier built for large-scale commercial AV installations. As a flagship model in LEA's Dante Connect Series, it delivers the audio capacity required for distributed systems in houses of worship, performing arts venues, and multi-zone enterprise deployments. The CS1504D integrates Dante audio networking with AES67 compatibility, onboard 96kHz DSP, and LEA Cloud remote management — giving integrators a fully networked amplifier platform that is controllable from any browser or control system without additional software.
Product Description
The CS1504D is designed for installations where channel count and network integration are non-negotiable. With 15 independent output channels each delivering 500 watts, a single rack unit handles speaker distribution that would otherwise require multiple amplifiers. Each channel is individually configurable for low-impedance (2, 4, or 8 ohm) or high-impedance (70V or 100V) operation, eliminating the need for separate LoZ and HiZ amplifiers in mixed systems.
Dante audio networking at 96kHz or 48kHz (Multicast or Unicast) provides up to 16x16 audio transport over standard IP infrastructure, with AES67 interoperability configurable via Dante Controller. The CS1504D also accepts 15 balanced analog inputs with user-selectable 26 dB or 34 dB input sensitivity, so existing analog signal chains integrate directly. The onboard Analog Devices Sigma 96kHz DSP processes each output channel with 48 dB/octave crossover filters, 8-band parametric EQ, 100ms output delay, and real-time load monitoring with pilot tone detection. Three connectivity options — built-in Wi-Fi access point, venue Wi-Fi, or Fast Ethernet — mean the amplifier fits into any network topology without additional hardware.
LEA Cloud connectivity enables remote monitoring, fault notification, and control from any device worldwide without a VPN. Third-party control system drivers are available for Crestron, Extron, Q-SYS, AMX, Control4, Savant, Symetrix, RTI, URC, Xilica, Utelogy, and others via Websocket and TCP open API. An external I/O port provides hardware-level remote on/off and amplifier health monitoring output. The universal switch-mode power supply with Power Factor Correction operates from 100VAC to 240VAC, making the CS1504D suitable for international deployments.
| Specification | Value |
|---|---|
| Channels | 15 |
| Power per Channel @ 4Ω / 8Ω | 500W / 500W |
| Power per Channel @ 2Ω | 250W |
| Power per Channel @ 70V / 100V | 500W / 500W |
| Analog Inputs | 15 Balanced, 26 dB or 34 dB selectable sensitivity |
| Dante Audio | 16x16 at 96kHz or 48kHz, Multicast or Unicast |
| AES67 | Configurable via Dante Controller |
| THD+N | 0.1% (20Hz–20kHz) |
| Frequency Response | 20Hz–20kHz, ±0.5 dB @ 4Ω, 8Ω, 70V, 100V |
| Signal-to-Noise Ratio | 105 dB (ref. 8Ω) |
| Crosstalk | 70 dB (20Hz–20kHz) |
| Amplifier Class | Class D with Smart Power Bridge |
| DSP | Analog Devices Sigma 96kHz, 32-bit core |
| Crossover Filters | Up to 48 dB/Oct IIR (Linkwitz-Riley & Butterworth) |
| Parametric EQ | 8 bands per channel |
| Output Delay | 100ms per channel |
| Load Monitoring | Real-time + pilot tone detection |
| AC Mains | 100VAC–240VAC ±15%, 50/60Hz |
| Power Supply | Universal SMPS with Power Factor Correction |
| Rack Format | 2U rack-mount |
| Connectivity | Built-in Wi-Fi AP, Wi-Fi Client, Fast Ethernet (Cat5/6) |
| External I/O | Remote On/Off input; Fault status output |
| Warranty (US) | Up to 6 years (with registration) |
| Warranty (International) | 5 years |
Key Features
- 15 Independent Channels at 500W Each — High channel density reduces rack space and simplifies cabling in large distributed audio systems.
- Dante Audio Networking (16x16) — Transports audio at 96kHz or 48kHz over standard IP networks with Multicast and Unicast support.
- AES67 Interoperability — Configurable via Dante Controller for integration with AES67-compliant DSPs and other networked audio devices.
- HiZ / LoZ Per-Channel Selection — Each channel independently configurable for 70V, 100V, or low-impedance loads without additional transformers.
- Onboard 96kHz Analog Devices DSP — Provides crossover filtering, 8-band parametric EQ, output delay, and speaker limiting on every channel.
- LEA Cloud Remote Management — Monitor and control any registered amplifier from a browser anywhere in the world; no VPN required.
- Smart Power Bridge Technology — Doubles output power on any single channel without losing adjacent channels.
- Broad Third-Party Control Integration — Native drivers for Crestron, Extron, Q-SYS, AMX, Control4, Savant, RTI, URC, Symetrix, Xilica, and more.
- Real-Time Load Monitoring — Detects speaker load conditions and pilot tone from internal or external sources during live operation.
- Universal SMPS with PFC — Operates on any AC mains from 100VAC to 240VAC for domestic and international projects.
- External I/O Port — Hardware input for remote on/off; output indicates amplifier fault state to external control systems.
- Three Network Connection Modes — Built-in Wi-Fi access point, client mode on existing venue Wi-Fi, or wired Fast Ethernet over Cat5/6.
Typical Applications
- House of worship (main sanctuary and overflow distributed systems)
- Performing arts centers and auditoriums
- Multi-purpose rooms requiring flexible zone routing
- Conference rooms and boardrooms with ceiling speaker distribution
- All-hands rooms and large training rooms
- Government facilities and secure commercial spaces
- Broadcast studios requiring Dante-networked amplification
Technical Specifications
| Parameter | Specification |
|---|---|
| Channels | 15 |
| Output Power @ 2Ω | 250W per channel |
| Output Power @ 4Ω | 500W per channel |
| Output Power @ 8Ω | 500W per channel |
| Output Power @ 70V / 100V | 500W per channel |
| Analog Inputs | 15 balanced, 26 dB or 34 dB sensitivity (user selectable) |
| Dante Inputs/Outputs | 16x16 at 96kHz or 48kHz |
| AES67 | Configurable via Dante Controller Software |
| THD+N | 0.1% (20Hz–20kHz) |
| Frequency Response | 20Hz–20kHz, ±0.5 dB @ 4Ω, 8Ω, 70V, 100V; -2.5 dB @ 20kHz @ 2Ω |
| Signal-to-Noise Ratio | 105 dB (20Hz–20kHz, ref. 8Ω) |
| Crosstalk | 70 dB (20Hz–20kHz) |
| Amplifier Class | Class D, Smart Power Bridge |
| DSP Architecture | Analog Devices Sigma 96kHz DSP, 32-bit core with SRC |
| Input Matrix | Fully routable; any input to any output, primary/secondary priority |
| Crossover Filters | Up to 48 dB/Oct IIR (Linkwitz-Riley and Butterworth) |
| Parametric EQ | 8 bands per channel |
| Output Delay | 100ms per channel |
| Output Protection | DC, VHF, AC Mains, Over-temp, Current Limiter, Fan Fault |
| User Limiting | Peak Voltage and RMS Voltage |
| Load Monitoring | Real-time + Pilot Tone (internal or external source) |
| Control Interface | Web Browser UI, 3rd-party API (Websocket/TCP), LEA Cloud |
| External I/O | In: Remote On/Off toggle; Out: Amplifier health indicator |
| AC Mains | 100VAC–240VAC ±15%, 50/60Hz |
| Power Supply | Universal SMPS with Power Factor Correction |
| Rack Format | 2U rack-mount |
| Network Connectivity | Wi-Fi AP, Wi-Fi Client, Fast Ethernet (Cat5/6) |
| Warranty (US) | Up to 6 years with product registration |
| Warranty (International) | 5 years |
Frequently Asked Questions
Q: How does the CS1504D differ from the CS1504?
The CS1504D adds Dante audio networking (16x16 at 96kHz or 48kHz) and AES67 support on top of the CS1504's analog-only input stage. Both models share the same 15-channel, 500W/ch output stage, DSP architecture, and LEA Cloud connectivity. Choose the CS1504D when your installation uses Dante-based audio distribution or requires AES67 interoperability with third-party networked audio devices.
Q: Can the CS1504D operate with both 70V and low-impedance speakers in the same system?
Yes. Each of the 15 output channels is independently configurable for HiZ (70V or 100V) or LoZ (2, 4, or 8 ohm) operation. A single CS1504D can simultaneously drive 70V ceiling speaker circuits in distributed zones and low-impedance subwoofers or main speakers without any external impedance matching transformers.
Q: What control systems integrate natively with the CS1504D?
LEA provides certified drivers and plugins for Crestron, Extron, Q-SYS, AMX (Harman), Control4, Savant, RTI, URC, Nice (formerly Elan), Symetrix, Xilica, Utelogy, Atlona Velocity, Aurora Multimedia, and others. The open Websocket and TCP API also allows custom integration with any control system that supports those protocols.
Q: Does the CS1504D require a dedicated network or VPN for remote management?
No dedicated network or VPN is required. The CS1504D connects to LEA Cloud via any standard internet-connected network. Once registered, you can monitor and control the amplifier from any browser on any device. For installations requiring network isolation, the built-in Wi-Fi access point mode allows local management without connecting to the venue network.
Q: What is the rack space requirement for the CS1504D?
The CS1504D occupies 2U of rack space. At 15 channels per unit, it replaces multiple single-rack-unit amplifiers, significantly reducing total rack depth and power wiring complexity in large installations.
Q: What is the warranty on the CS1504D?
US customers who register their product receive up to 6 years of warranty coverage. International customers receive a 5-year warranty; contact your local LEA distributor for country-specific warranty terms.
Q: Is the CS1504D suitable for installations requiring EN54 fire alarm certification?
LEA Professional holds EN54 certification for the Connect Series. Consult the LEA Professional downloads page and your local authority having jurisdiction (AHJ) to confirm compliance requirements for your specific installation.
Q: Can I use the CS1504D with existing speaker tuning files?
Yes. LEA provides over 3,000 free speaker tuning files for popular brands including JBL, Bose, Sonance, Klipsch, QSC, Community, Danley, Martin Audio, Renkus-Heinz, and many others. Tuning files are loadable directly through the web UI or LEA Cloud platform.
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