Product Description
RCF SUB 18-AX Professional Active 18" Subwoofer
The RCF SUB 18-AX is a high-performance 18-inch active subwoofer designed for professional live sound applications. Engineered for portability and control, it delivers up to 135 dB of powerful, clear bass with advanced onboard DSP, a color touch panel, and Bluetooth® remote control via the RCF LiveRemote App.
Its 2200W Class-D amplifier drives a robust 18” woofer in a bass reflex housing, producing deep, articulate low frequencies ideal for small to mid-sized venues. The integrated digital crossover offers recallable presets, full-range EQ, delay, cardioid setup, and alignment tools—making system optimization fast and precise.
Built from multi-ply hardwood with a durable polyurea coating, the SUB 18-AX is both rugged and refined, featuring a Powercon True1 Top sealed AC connector and dual combo inputs with link and crossover outputs. Perfectly matched with RCF’s 10”, 12”, or 15” top speakers, the SUB 18-AX is a flexible, professional-grade subwoofer solution.
Features:
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2200W Class-D amplifier with high headroom
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135 dB maximum sound pressure level
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18” high-power woofer with bass reflex housing
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Advanced DSP with touchscreen interface and rotary encoder
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Bluetooth® remote control via RCF LiveRemote App
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Digital crossover with recallable presets
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8-band parametric EQ and up to 45m delay
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Cardioid function and L/R balance for 2.1 configurations
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Dual XLR/TRS combo inputs and link outputs
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Powercon True1 Top sealed AC connector
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Rugged multi-ply hardwood enclosure with poly-urea coating
Specifications:
| Specification | Detail |
|---|---|
| Amplifier Power | 2200W Class-D |
| Maximum SPL | 135 dB |
| Woofer Size | 18” (457 mm) |
| Enclosure Type | Bass reflex |
| Display | 2.4” color touch panel |
| EQ | 8-band parametric EQ |
| Delay | Up to 45 meters |
| Inputs | 2 × XLR/TRS combo |
| Outputs | 2 × XLR link/Xover |
| Connectivity | Bluetooth (LiveRemote App) |
| Cabinet Material | Multi-ply hardwood |
| Finish | Polyurea-coated black |
| Connector | Powercon True1 Top sealed AC connector |
| Dimensions (Metric) | 693 mm x 505 mm x 685 mm |
| Weight (Metric) | 42.9 kg |
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