• KOREAN-ENGINEERED EXTREME POWER: The Synergy Mobile Audio WFO 3.1D mono Class D amplifier is designed and manufactured in Korea using premium components, heavy copper PCB architecture, and an overbuilt power supply for uncompromising performance.
• MASSIVE REAL-WORLD RMS OUTPUT: Delivers 4,800W RMS at 1 ohm @ 14.4V and up to 5,385W RMS at 16V, providing serious power for high-output subwoofer systems, demo vehicles, and SPL competition builds.
• BUILT FOR DAILY DRIVERS & COMPETITION USE: Stable at 1 ohm with an extended operating range of 8V–16V, the WFO 3.1D performs reliably in daily-driven vehicles, ground-pounding demo systems, and high-voltage competition setups.
• PRECISION BASS CONTROL & CLEAN OUTPUT: Adjustable subsonic (10Hz–50Hz) and low-pass (35Hz–250Hz) filters, high damping factor (>200), and low noise floor (>100dB S/N) deliver tight, controlled bass with excellent efficiency.
• OVERBUILT CONSTRUCTION & CONNECTIONS: Features dual 0-gauge power and ground terminals, nickel-plated 8-gauge speaker outputs, hand-soldered Tiffany RCA connections, multiple power transformers, and a high-mass aluminum heat sink for superior thermal management.

Synergy Audio WFO Mono 4800 Watts 1 Ohm Class D Vehicle Amplifier WFO3.1D

This listing includes

• (1) Synergy Audio Mono Class D Amplifier WFO3.1D
• Remote gain control
• Owner’s manual

The Synergy Mobile Audio WFO Series represents world-class mobile amplification built with no compromises. Designed, engineered, and manufactured in Korea, WFO amplifiers utilize premium components, overbuilt power supplies, and heavy-duty construction to deliver extreme output with long-term reliability.

The WFO 3.1D mono amplifier is designed for high-power subwoofer systems in daily-driven vehicles, ground-pounding demo builds, and SPL competition applications. With massive current capability, extended voltage support, and rock-solid low-impedance stability, this amplifier is built to perform when pushed hard.

Capable of delivering up to 4,800 watts RMS at 1 ohm @ 14.4V and an incredible 5,385 watts RMS at 16V, the WFO 3.1D is engineered around an overbuilt power supply, thick copper PCB architecture, and multiple power transformers to maintain clean, controlled output under extreme demand.

Features

• Digital linkable/dual monoblock amplifier
• Dual MOS-FET PWM Power Supply
• High-end Korean design, engineering, and manufacturing
• Overbuilt power supply and output section using premium components
• High-purity printed circuit board
• 16V capable for competition and high-voltage electrical systems
• Fully stable into 1 ohm (2 ohm strappable)
• Hand-soldered nickel-plated Tiffany RCA inputs and outputs
• Heavy-duty aluminum heat sink for superior thermal dissipation
• Intelligent multi-way protection circuitry for maximum reliability

Specifications:

Power Output (RMS)

• 3,500W @ 1 Ohm
• 2,350W @ 2 Ohm 
• 1,200W @ 4 Ohm 
• Frequency Response: 12Hz – 250Hz
• Signal-to-Noise Ratio: >100dB
• Damping Factor: <150
• Subsonic Filter: 10Hz – 50Hz
• Low-Pass Filter: 35Hz – 250Hz
• Input Sensitivity: 8V – 200mV
• Fuse Rating: 300A
• Strapped fuse rating: 600A

Build & Connections

• Dual 0 Gauge power and ground terminals
• Nickel-plated 8 gauge speaker outputs
• (4) high-current power transformers
• Heavy-duty 2oz double-sided PCB with solid copper traces
• Custom high-mass, thermally optimized aluminum heat sink

Dimensions

• Length: 18.90" (480mm)
• Width: 8.27" (210mm)
• Height: 2.44" (62mm)