KONG 15″ 3,500W RMS Dual 2-Ohm Subwoofer

Large-cone output engineered for powerful, musical car audio systems. The NX LVL Audio KONG 15-inch Dual 2-Ohm subwoofer is rated for 3,500 watts RMS and built around a 4-inch voice coil.

Confirmed specifications

• Subwoofer size: 15 inches
• Voice-coil configuration: Dual 2 ohm
• Power handling: 3,500 watts RMS
• Peak power: 7,000 watts
• Voice coil: 4 inches
• Basket: Red powder-coated finish

KONG Series performance

The KONG 15 is intended for properly engineered high-output systems that need strong low-frequency authority without losing the musical character of the build. Its signature red basket gives the installation a clean NX LVL Audio look.

Build it right

For reliable musical output, use a properly designed enclosure, adequate electrical support, correct wiring, and a clean, unclipped signal. Set amplifier gain and crossover points for the completed system.

Break-in guidance

For the first 10–20 hours, play bass-heavy music at moderate volume—approximately 25–50% power. Avoid excessive bass boost, clipping, or full-power operation while the suspension loosens.

Plan the complete system

Review dual 1-ohm versus dual 2-ohm wiring, then use the car audio calculators for preliminary system estimates.