RCF SUB 8004-AS Active High Power Subwoofer

The SUB 8004-AS is one of the most powerful 18” subwoofers in the professional sound category. It features a high-performance, hyper-vented 18” woofer with a 4” inside/outside voice coil, designed to deliver deep and powerful low frequencies with precision. Driven by a 1250W RMS Class-D amplifier, it ensures consistent output and reliability in the most demanding live environments. The onboard DSP offers selectable presets, delay control, cardioid configuration, and phase switching. The rugged Baltic birch plywood cabinet is tour-grade, weather-resistant, and designed for stacking with NXL23-A, NXL24-A, HDL 10-A, and HDL 20-A systems.

Features

• 2500 Watt peak power, 1250 Watt RMS

• 136 dB max SPL

• 30 Hz – 120 Hz frequency response

• 18″ woofer with 4.0″ voice coil

• Class-D amplifier with SMPS power supply

• DSP-controlled input section with selectable presets

• Delay, phase, cardioid, deep/punch mode controls

• Baltic birch tour-grade cabinet

• Compatible with NXL23-A and NXL24-A (stacking)

• Multiple configurations with HDL 10-A and HDL 20-A

• PowerCON IN/OUT connectors

• M20 thread pole mount

Specifications