Studiomaster nEX4-2400 AES67 Networked 4-Channel Power Amplifier

Studiomaster nEX4-2400 AES67 Networked 4-Channel Power Amplifier

The Studiomaster nEX4-2400 networked 4-channel power amplifier delivers 600W per channel into 8 ohms, 900W per channel into 4 ohms, or two 1800W bridged outputs into 8 ohms. It combines AES-67 audio networking, Ethernet monitoring, onboard DSP, and a compact 1U steel chassis for high-output professional sound systems.

Designed for installed sound, live entertainment, touring, rental, and commercial audio applications, the amplifier supports stereo, parallel or mono, and bridged configurations. It works as a four-channel amplifier for installed sound, an AES-67 power amplifier for networked audio, or a lightweight 1U amplifier for touring racks and mobile systems.

Balanced XLR inputs and industry-standard 4-pole speaker outputs support integration with professional audio equipment. A 2.2-inch color LCD provides access to built-in DSP settings, while Ethernet connectivity enables network monitoring through compatible control software. Automatic standby, output limiting, and multiple protection circuits support efficient and dependable operation.

Key Features

• Four-Channel Power: Delivers 4 x 600W at 8 ohms for multi-zone and distributed loudspeaker systems.
• 4-Ohm Output: Produces 4 x 900W when driving compatible lower-impedance speaker loads.
• Bridged Operation: Supplies 2 x 1800W at 8 ohms for applications requiring greater output per channel pair.
• AES-67 Networking: Connects to compatible audio-over-IP systems for digital signal distribution.
• Ethernet Monitoring: Supports amplifier monitoring through a LAN connection and compatible control software.
• Built-In DSP: Provides front-panel access to signal-processing settings through a 2.2-inch color display.
• Automatic Standby: Reduces idle operation when the amplifier does not detect an input signal.
• System Protection: Includes limiting, DC, short-circuit, thermal, under-voltage, overheating, and overload protection.

Technical Specifications

• Brand: Studiomaster
• Model: nEX4-2400
• Product Type: Networked digital power amplifier
• Output Channels: 4
• Rated Output at 8 Ohms: 4 x 600W
• Rated Output at 4 Ohms: 4 x 900W
• Bridged Output at 8 Ohms: 2 x 1800W
• Rated Output Test Conditions: 1% THD, continuous 1kHz sine wave, all channels operating simultaneously
• RMS Output Voltage: 69.3V at 1% THD and 1kHz
• Operating Modes: Stereo, parallel or mono, and bridged
• Input Sensitivity and Gain: 0.5 to 2 Vrms selectable at rated output, 1kHz, and 8 ohms
• Distortion and Noise: Typically 0.05% at 10% rated output, 1kHz, and 8 ohms
• Crosstalk Suppression: At least 75 dB below rated power from 20Hz to 1kHz at 8 ohms
• Frequency Response: Typically ±0.5 dB from 20Hz to 20kHz at 10% rated output and 8 ohms
• Input Impedance: 20 kilohms balanced and 10 kilohms unbalanced
• Damping Coefficient: Typically 1000 from 20Hz to 200Hz at 8 ohms
• Signal-to-Noise Ratio: At least 100 dB, A-weighted, from 20Hz to 20kHz at 8 ohms
• Audio Inputs: Balanced XLR
• Speaker Outputs: Industry-standard 4-pole speaker connectors
• Network Audio Protocol: AES-67
• Network Connection: Ethernet/LAN
• Network Functions: Amplifier monitoring through compatible control software
• Display: 2.2-inch color LCD
• Signal Processing: Built-in DSP with front-panel display access
• Standby Function: Automatic standby when no input signal is present
• Protection: Output limiting, DC, short-circuit, thermal, under-voltage, overheating, overload, and output DC protection
• Power Requirements: 100 to 240 VAC, ±10%, 50/60Hz
• Enclosure: Steel 1U rackmount chassis
• Dimensions: 19 x 1.8 x 11.8 inches (W x H x D)
• Weight: 12.8 pounds