Features
- 2200 Watt Class-D Amplifier
- 135 dB MAX SPL
- 18” Woofer, bass reflex housing
- Digital Crossover w/ Presets
- Multi-ply hardwood polyurea-coated
- LiveRemote App
- Dual XLR/TRS combo Input + Link, Dual XLR Xover Out
- Bass Motion Control excursion management
- Powercon True1 Top Sealed AC Connector
RCF SUB 18-AX Professional Active 18" Subwoofer is a high-performance powered subwoofer designed for live sound reinforcement, portable PA systems, and professional audio installations. Featuring a powerful 2200 Watt Class-D amplifier, an 18-inch woofer, and advanced Bass Motion Control technology, it delivers deep, accurate bass with a maximum sound pressure level of 135 dB.
The RCF SUB 18-AX Professional Active 18" Subwoofer includes a digital crossover with presets, Bluetooth LiveRemote App control, dual XLR/TRS combo inputs, dual XLR crossover outputs, and a responsive color touchscreen for fast system configuration. Integrated DSP provides 8-band EQ, routing, cardioid mode, delay, crossover presets, and speaker management for maximum flexibility.
Built with a rugged multi-ply hardwood cabinet finished in durable polyurea coating, the RCF SUB 18-AX Professional Active 18" Subwoofer is ideal for touring, portable events, houses of worship, clubs, and fixed installations. With a frequency response of 35 Hz–120 Hz, Powercon TRUE1 TOP connectors, convection cooling, and professional-grade components, it delivers reliable low-frequency performance in demanding environments.
Specifications
| Acoustical Specifications |
| Frequency Response |
35 Hz - 120 Hz |
| Max SPL @ 1m |
135 dB |
| Transducers |
| Woofer |
1 x 18", 4.0" v.c. |
| Input/Output Section |
| Input Signal |
Bal/Unbal |
| Input Connectors |
Combo XLR/Jack |
| Output Connectors |
XLR |
| Input Sensitivity |
-2 dBu/+4 dBu |
| Processor Section |
| Protections |
Thermal |
| Limiter |
Soft Limiter |
| Controls |
Encoder for Volume Control and Data Entry. Touch Screen for Parameter Management and Monitoring. |
| Power Section |
| Total Power |
2200 W Peak, 1100 W RMS |
| Cooling |
Convection |
| Connections |
Powercon TRUE1 TOP IN/OUT |
| Standard Compliance |
| Safety Agency |
CE Compliant |
| Physical Specifications |
| Cabinet/Case Material |
Plywood |
| Handles |
1 Handle Per Side |
| Pole Mount/Cap |
M20 Thread |
| Grille |
Steel |
| Color |
Black, White |
| Size / Weight |
| Height |
693 mm / 27.28 inches |
| Width |
505 mm / 19.88 inches |
| Depth |
685 mm / 26.97 inches |
| Weight |
42.9 kg / 94.58 lbs |
| Shipping Information |
| Package Height |
735 mm / 28.94 inches |
| Package Width |
745 mm / 29.33 inches |
| Package Depth |
565 mm / 22.24 inches |
| Package Weight |
49 kg / 108.03 lbs |
