Behringer EPQ304 Amplifier

Behringer EPQ304 — 300 W 4-Channel Power Amplifier for Touring Rigs

The Behringer EPQ304 is a 4-channel professional power amplifier engineered for working musicians who need serious headroom without hauling heavy iron. Delivering 300 watts of total output from a 1U chassis that weighs just 4.0 kg, this amp slots into any standard rack and disappears into the rig. The EPQ304 is the right choice for bands, mobile DJs, and small-to-mid venue installers who want clean, reliable multi-channel power at a fraction of the weight of traditional amplifiers.

ATR Technology and Rail Tracking in a Feather-Light Package

What separates this model from generic Class AB amps is its Accelerated Transient Response (ATR) circuitry paired with rail tracking, which modulates the power supply rails in real time to follow the peaks of the input signal. Combined with a switching-mode power supply, the design eliminates the heavy toroidal transformer and runs significantly cooler than conventional amps. Independent Clip Limiters on every channel let the operator push the unit hard without driving connected speakers into distortion.

Output Power and Channel Layout

Four discrete amplifier channels give the EPQ304 the flexibility to drive a multi-zone PA, a bi-amped top-and-sub stack, or four separate monitor mixes from a single rack unit. Each channel pair can be switched between Mono, Stereo, and Mono Bridge modes on the rear panel, adapting to virtually any speaker topology.

• Total Output Power: 300 W — headroom for small clubs and conference rooms
• Power per Channel @ 4 Ω: 75 W — drives typical 8" and 10" tops cleanly
• Power per Channel @ 8 Ω: 50 W — safe match for passive monitors and fill speakers
• Number of Channels: 4 — flexible routing for stereo, bi-amp, or quad-mono setups

Inputs, Outputs, and Operating Modes

Balanced combo connections reject noise over long cable runs, while front-panel positive-detent Gain controls with Signal and Clip LEDs give at-a-glance feedback on every channel. The same rear panel hosts the mode switches that put Channels 1/2 and 3/4 into Mono, Stereo, or Mono Bridge operation, so a single amp can feed a stereo pair, a bridged subwoofer, or two independent mono zones.

• Inputs: Combo (XLR / 6.35 mm Jack) — balanced connection for mixers and DSP sources
• Outputs: Combo (XLR / 6.35 mm Jack) — secure mating under stage vibration
• Operating Modes: Mono / Stereo / Mono Bridge (per channel pair) — adapts to any speaker layout

Lightweight 1U Chassis Built for the Road

At only 4.0 kg, the EPQ304 is light enough for one-person load-ins and fits a single rack space alongside wireless receivers or DSP units. The switching-mode power supply keeps heat output low, so the amp can sit in a sealed rack without thermal throttling, while ATR-optimised transistors with extremely high slew rates react instantly to demanding bass impulses.

• Weight: 4.0 kg — roughly half the mass of comparable toroidal-based amps
• Rack Format: 1U rackmount — standard 19" integration
• Cooling: Switching-mode power supply with rail tracking — cooler running, no heavy heatsink required

Who Should Choose the Behringer EPQ304

The EPQ304 is the right choice for working bands, mobile DJs, houses of worship, and small-venue installers who need four channels of clean power in a single lightweight rack unit. Solo performers running stereo mains plus two monitor mixes will appreciate the per-channel limiters and bridge-mode flexibility. Touring musicians benefit from the 4.0 kg chassis, which keeps freight costs down and load-ins fast. Audio technicians deploying multi-zone systems in restaurants, conference rooms, or retail spaces can drive up to four separate speaker lines from one amp, simplifying cabling and rack layout.

Behringer EUROPOWER Series — Pro Audio at Accessible Prices

The EPQ304 sits inside Behringer's EUROPOWER family of professional power amplifiers, a line built around the company's Accelerated Transient Response technology. Designed for the working musician rather than the flagship studio market, EUROPOWER amps target users who need reliable rack-mount power, road-ready build quality, and an aggressive price-to-performance ratio. This model embodies that brief: 300 watts, four channels, ATR circuitry, and a 4.0 kg chassis at a price point that leaves budget for additional speakers or microphones.