RCF SUB 18-AX 2,200-watt 18-inch Active Subwoofer - Black

The RCF SUB 18-AX is a professional 18" active subwoofer that doubles as the DSP brain of a portable PA. A 2,200 W peak (1,100 W RMS) Class-D amplifier drives a high-excursion 18" woofer with a 4" voice coil to 135 dB max SPL, and the onboard processor — run from a 2.4" color touchscreen or the RCF LiveRemote app over Bluetooth — handles crossovers, EQ, delay and cardioid setup for the whole system.

Verified specs:

• 2,200 W peak / 1,100 W RMS Class-D amplification
• 18" woofer with 4" voice coil, bass-reflex cabinet, Bass Motion Control excursion management
• Frequency response 35–120 Hz; up to 135 dB max SPL
• Dual crossovers with factory-tuned preset for RCF tops plus 4 user presets
• Full-range 8-band parametric EQ, delay up to 45 m, cardioid function, 8 recallable snapshots
• 2.4" color touch panel with rotary encoder; RCF LiveRemote app (iOS/Android) via Bluetooth
• Dual XLR/TRS combo inputs with link outs; dual XLR crossover outputs
• powerCON TRUE1 TOP locking AC in/out
• Polyurea-coated multi-ply hardwood cabinet, powder-coated steel grille, M20 pole mount
• 69.3 × 50.5 × 68.5 cm; 37.6 kg (82.9 lb)

Ideal for: mobile DJs, bands, event production and rental fleets pairing with 10"–15" tops — factory presets make it plug-and-play under RCF speakers, and the polyurea shell with locking sealed AC connectors is built for constant load-in/load-out work.