The LEA Professional CS702-ADSP is a two-channel Class-D power amplifier designed for professional audio installations requiring high output power and advanced system control. Delivering up to 700W per channel at supported loads, it supports 2, 4, and 8-ohm speaker systems, along with 70V and 100V distributed audio applications. Its 1U rackmount design makes it suitable for commercial AV installations, hospitality venues, corporate facilities, and other demanding audio environments.

Featuring a 96 kHz Analog Devices DSP with a 32-bit processing core, the CS702-ADSP provides advanced audio management, including 2048-tap linear-phase FIR filters, crossover processing, eight-band parametric EQ per channel, and up to four seconds of output delay. Its input matrix supports flexible routing and primary and secondary input priorities. Smart Power Bridge technology enables bridged output functionality while preserving the availability of the remaining amplifier channels.

The CS702-ADSP provides built-in Wi-Fi, Ethernet networking, and LEA Cloud connectivity for remote control, monitoring, and notifications. Its browser-based WebUI allows configuration from compatible devices without requiring dedicated software downloads. Balanced analog inputs, external I/O for remote on/off and fault monitoring, real-time load monitoring, and a universal power supply make it a versatile solution for integrated sound systems.

Key Features

• Two-channel Class-D amplifier delivering up to 700W per channel.
• Supports 2, 4, and 8-ohm loads and 70V/100V systems.
• 96 kHz DSP with 2048-tap linear-phase FIR filters.
• Eight-band parametric EQ per channel and up to 4 seconds of delay.
• Built-in Wi-Fi, Ethernet, and LEA Cloud connectivity.
• Smart Power Bridge technology with advanced load monitoring.

Ideal For

• Commercial AV installations.
• Corporate offices and conference rooms.
• Hotels, restaurants, and hospitality venues.
• Distributed 70V/100V audio systems.
• Networked audio installations requiring remote monitoring.
• Professional sound reinforcement and integrated audio systems.

What’s in the Box

• LEA Professional CS702-ADSP Connect Series Power Amplifier.
• Additional accessories are not confirmed in the supplied product information.

Inputs & Outputs

• Analog Inputs: 2 × balanced inputs with selectable 26 dB and 34 dB input sensitivity.
• External I/O Input: Remote on/off control.
• External I/O Output: Amplifier health indication.
• Ethernet: Network connection for WebUI and cloud control.
• Wireless: Built-in Wi-Fi access point and connection to an existing Wi-Fi network.
• Speaker Outputs: Amplified outputs supporting compatible low-impedance and high-impedance speaker systems.

Frequently Asked Questions

How many channels does the LEA Professional CS702-ADSP provide?

The CS702-ADSP is a two-channel amplifier according to the model description. The supplied specification table lists four channels for model 702-ADSP, so the exact model designation should be confirmed before publication.

How much power does the CS702-ADSP deliver?

The supplied product description identifies an output rating of up to 700W per channel at supported loads. The manufacturer's power table lists 700W per channel at 4 and 8 ohms and at 70V/100V, with 350W per channel at 2 ohms.

Does the amplifier support network and cloud control?

Yes. It supports Ethernet, built-in Wi-Fi, browser-based WebUI, LEA Cloud control, third-party API control, and SharkWare software.

What DSP features are included?

The amplifier includes a 96 kHz Analog Devices DSP with a 32-bit core, FIR and IIR crossover filters, eight-band parametric EQ per channel, up to four seconds of output delay, input routing, configurable voltage limiting, and real-time load monitoring.

What is Smart Power Bridge technology?

Smart Power Bridge technology enables bridged output functionality, allowing additional power to be directed to a single channel without sacrificing another amplifier channel, subject to the supported operating configuration.

Can the CS702-ADSP operate with 70V and 100V speakers?

Yes. The supplied specifications identify selectable 70V and 100V high-impedance operation per channel for compatible distributed audio systems

Full Technical Specifications

Amplifier Specifications

Amplifier Type	Class-D
Number of Channels	Model designation discrepancy: product description states 2; supplied 702-ADSP power table states 4
Power at 2,4,8 Ohms	350W per channel, 700W per channel
Power at 70V/100V	700W per channel
Supported Impedance	2, 4, and 8 Ohms
Constant-Voltage Outputs	70V and 100V
Amplifier Technology	Proprietary Smart Power Bridge

Audio Performance

THD+N	0.1% from 20 Hz to 20 kHz
Frequency Response	±0.5 dB at 4/8 Ohms and 70V/100V
Frequency Response at 2 Ohms	−2.5 dB at 20 kHz
Signal-to-Noise Ratio	105 dB, referenced to 8 Ohms
Crosstalk	70 dB from 20 Hz to 20 kHz
Input Sensitivity	Selectable 26 dB and 34 dB
Protection	DC, VHF, AC mains, overtemperature, current limiting, and fan fault detection

Signal Processing

DSP Architecture	Analog Devices Sigma DSP
DSP Processing	96 kHz with 32-bit core
Sample Rate Converters	Included
Input Matrix	Routable matrix with primary and secondary input priority
IIR Crossovers	Up to 48 dB/octave
IIR Filter Types	Linkwitz-Riley, Butterworth, and Bessel
FIR Crossovers	24 dB/octave and 48 dB/octave Linkwitz-Riley, linear-phase Brickwall
FIR Processing	2048 taps per channel at 96 kHz
Parametric EQ	8-band per channel
Output Delay	Up to 4 seconds per channel
User-Adjustable Limiting	Peak voltage and RMS voltage
Load Monitoring	Real-time load monitoring and pilot-tone detection

Connectivity & Control

Analog Inputs	2 × balanced inputs
Ethernet	Network connection for WebUI and cloud control
Wi-Fi	Built-in Wi-Fi access point and existing-network connectivity
Web Interface	Browser-based WebUI
Cloud Control	Remote control, monitoring, and notifications
Third-Party Control	API support
Additional Software	SharkWare
External I/O Input	Remote on/off control
External I/O Output	Amplifier health indication
Analog Input Routing	Configurable through WebUI or LEA Cloud

Power & Cooling

AC Input	100–240 VAC, 50/60 Hz
AC Voltage Tolerance	±15%
Power Supply	Universal switch-mode power supply with PFC
Amplifier Output Stage	High-efficiency Class-D
Cooling	Front-to-rear variable-speed fan
Fan Noise at Idle	50 dB at 1 m
Fan Noise at 50% Speed	57 dB at 1 m
Fan Noise at Full Speed	63 dB at 1 m
Startup to Audio	Under 10 seconds when using PoE, as stated in the supplied overview

Physical Specifications

Rackmount Size	1U
Product Dimensions (L × W × H)	14.25 × 19 × 1.75 inches
Product Weight	10 lbs
Shipping Dimensions (L × W × H)	20 × 22.75 × 3.75 inches
Shipping Weight	17.4 lbs
Cooling Orientation	Front to rear