Behringer EPQ304 300W Lightweight 4-Channel Power Amplifier with ATR (Accelerated Transient Response) Technology

The Behringer EPQ304 is a professional lightweight 4-channel power amplifier designed for installed audio systems, portable PA rigs, and multi-zone sound reinforcement applications. It provides efficient multi-channel amplification in a compact 1U rackmount format, making it well suited for venues, conference rooms, distributed audio systems, and small PA setups.

Using ATR (Accelerated Transient Response) technology and a high-efficiency switch-mode power supply, the EPQ304 delivers fast transient response with low noise and improved energy efficiency. Independent limiters and protection circuits ensure reliable operation while safeguarding connected loudspeakers.

The amplifier includes four independent channels with professional input connectivity and speaker outputs. Its lightweight chassis and minimal depth design allow integration into compact racks and portable systems while maintaining dependable performance for professional audio environments.

Key Features

• 4-Channel Amplification: Provides four independent channels delivering up to 75 W per channel into 4 Ω.
• ATR Technology: Accelerated Transient Response enhances punch and clarity in audio playback.
• Efficient Power Supply: Switch-mode power supply offers low noise, high efficiency, and reduced power consumption.
• Independent Limiters: Built-in limiters on each channel help maintain maximum output while preventing overload.
• Detented Gain Controls: Precision controls allow accurate sensitivity matching between channels.
• Status Monitoring: Power, Signal, and Clip LEDs provide clear visual feedback for system monitoring.
• Professional Inputs: Servo-balanced XLR and 1/4" TRS inputs ensure compatibility with professional audio equipment.
• Protection Circuits: Independent DC and thermal protection safeguard amplifier and speakers.
• Compact Rack Design: 1U rackmount chassis with shallow depth fits easily into compact equipment racks.
• Rugged Construction: Impact-resistant all-steel chassis designed for professional use.

Technical Specification

Amplifier Power Output
4 Ω per channel: 4 × 75 W
8 Ω per channel: 4 × 50 W

Amplifier Technology
Circuit Design: ATR (Accelerated Transient Response) technology
Power Supply: Ultra-efficient switch-mode power supply

Controls
Gain Controls: Detented gain controls for precise sensitivity adjustment
Limiters: Independent limiters per channel

Indicators
LED Indicators: Power, Signal, Clip per channel

Connections
Inputs: Servo-balanced XLR and 1/4" TRS
Outputs: Professional speaker connectors

Cooling System
Ventilation: Back-to-front ventilation with air filter

Chassis
Construction: Impact-resistant all-steel chassis
Rack Height: 1U
Minimum depth chassis: 10.1" / 257 mm

Weight
8.8 lbs

Height
1.93"

Width
18.98"

Length
10.43"