Rcf SUB 18-AX W
The RCF SUB 18-AX is a professional 18" active subwoofer designed for live performances, mobile installations and demanding environments.
It combines a high-excursion 18" woofer with a high-power Class D digital amplifier to deliver deep, punchy, perfectly controlled bass.
Advanced DSP management (digital crossovers, 8-band EQ, delays, cardioid mode, presets) enables fast, seamless integration with 10", 12" or 15" satellite speakers.
Sturdy construction: plywood cabinet, hard-wearing covering, M20 mast/foot socket, side handles, high-end mains connector.
The SUB 18-AX is designed for easy transport, installation and operation of professional-quality sound systems.
Frequency Response: 35 Hz – 120 Hz
Max SPL (@ 1 m): 135 dB
Speaker: 1 × 18", 4" voice coil
Cabinet Type: Bass-reflex
Amplification / Electronics
Power: 2200 W Peak / 1100 W RMS
Amplification: Class D
DSP: 8-band parametric EQ, digital crossovers with presets, time alignment up to 45 m, cardioid pattern, L/R balance, user snapshots
Cooling: Passive convection
Connectivity
Inputs: 2 × XLR/Jack combo (balanced/unbalanced)
Outputs: 2 × XLR Link outputs + 2 × XLR Xover outputs
Input Sensitivity: -2 dBu / +4 dBu
Power supply: PowerCON TRUE1 TOP connector (IN/OUT)
Controls: Color touchscreen + rotary encoder, control via mobile app
Construction / Mechanics
Cabinet: Plywood with durable polyurethane finish
Grille: Steel
Handles: One handle on each side
Mounting: M20 threaded base
Dimensions (H × W × D): 693 mm × 505 mm × 685 mm
Weight: 43.8 kg
Ref. Euroguitar : 120044




