RCF SUB 18-AX W | 18in -135dB

RCF SUB 18-AX: High-Power 18" Active Subwoofer

Designed for small to midsized venues and portable applications, the RCF SUB 18-AX is a professional 18" high-powered active subwoofer perfect for bands, DJs, clubs, touring companies, and rental houses. Delivering powerful bass with exceptional clarity, it is the ultimate solution for demanding live sound environments.

Key Features

• 2200W Class-D amplifier
• 135 dB max SPL
• 18” woofer, bass-reflex housing
• Digital crossover with presets
• Multi-ply hardwood with polyurea coating
• LiveRemote app for remote control
• Dual combo XLR-1/4" inputs + link, dual XLR crossover output
• Bass motion-control excursion management
• PowerCON True1 TOP, sealed AC connector

Product Overview

The SUB 18-AX integrates a Class-D amplifier delivering 2200W peak power to its 18" driver, offering a frequency range of 35 to 120 Hz and a maximum SPL of 135 dB. The rear panel features a comprehensive speaker management system with dual crossovers, 8-band EQs, routing, delays, cardioid configurations, and recallable presets. The durable polyurea-coated all-wood cabinet is equipped with sealed powerCON True1 TOP IP-rated mains power connectors, ensuring reliability and longevity.

Specifications

Configuration

• Active Subwoofer

Enclosure Type

• Subwoofer

Total Power Capacity

• 1100 W RMS
• 2200 W Peak

LF Driver

• 1x 18" / 457.2 mm Inverted Woofer
• LF Voice Coil: 4" / 101.6 mm

Performance

• Frequency Response: 35 Hz to 120 Hz
• Maximum SPL: 135 dB
• Input Sensitivity: +4 dBu to -2 dB
• Protections: RMS, Thermal

Connectivity

• 2x Combo XLR-1/4" 3-Pin Female Balanced/Unbalanced Line Input
• 2x XLR 3-Pin Male Balanced Link Output
• 2x XLR 3-Pin Male Balanced Line/High-Pass Output
• Bluetooth for wireless connectivity
• LiveRemote app compatible with Android & iOS

Signal Processing

• EQ: Yes
• Dynamic Processing: Soft Limiter
• Alignment Delay: Yes
• Phase Adjustment: Yes

Power

• AC Input Power: 100 to 120 VAC, 50 / 60 Hz
• AC Power I/O: 1x PowerCON TRUE1 Input, 1x PowerCON TRUE1 Output

Physical Specifications

• Color: White
• Mounting: 1 x 1.4" / 35 mm Pole Socket (Top)
• Handles: 1x Each Side
• Cooling: Convection
• Construction Material: Plywood, Steel
• Certifications: CE
• Dimensions: 27.3 to 27 x 19.9 x 16.5" / 69.3 to 68.6 x 50.5 x 41.9 cm
• Weight: 82.9 lb / 37.6 kg