RCF SUB 15AX White | 15in - 133 dB | Bluetooth DSP Subwoofer w/ Mixer & Crossover Presets

High-Power 15-Inch Active Subwoofer with Bluetooth® Control

The RCF SUB 15-AX is a powerful, portable 15" active subwoofer designed for professional live sound and mobile audio applications. With 2200W of Class-D power, advanced DSP, Bluetooth® control, and built-in crossover presets for RCF speakers, it delivers rich, deep bass with up to 133 dB SPL. This gig-ready solution is ideal for enhancing 10” or 12” tops in small to mid-sized venues.

RCF SUB 15-AX Competitive Differences

• 2200W Class-D amplifier (1100W RMS) with convection cooling
• Up to 133 dB SPL for powerful low-end performance
• Advanced DSP with 2.4" touch display, 8-band EQ, delay, and cardioid mode
• Bluetooth® remote control via LiveRemote app (iOS/Android)
• Built-in crossover presets for seamless integration with RCF tops
• True 35 Hz low-end extension with Bass Motion Control (BMC)
• Dual XLR/TRS inputs + XLR crossover outputs for easy setup
• Durable polyurea-coated plywood enclosure with Powercon TRUE1 TOP connector

RCF SUB 15-AX Description

The RCF SUB 15-AX redefines portable subwoofer flexibility and power for professionals. Engineered for superior performance in live sound, club installations, and mobile setups, it features a 15” woofer with a 3.0” voice coil and delivers exceptional clarity and punch. Its onboard DSP allows full system control including routing, crossover management, delay alignment, 8-band EQ, and cardioid configuration—all accessible via a color touchscreen or remotely through the RCF LiveRemote app. With built-in factory-tuned crossover presets, the SUB 15-AX makes integration with RCF ART 9 AX speakers quick and seamless. Simply connect and go—no external processing needed. The Bass Motion Control algorithm ensures ultra-low distortion at sub-bass frequencies, providing powerful yet controlled output without the phase issues of traditional high-pass filters. Built for professionals on the move, this subwoofer features ergonomic side handles, stackable design, and a rugged all-wood enclosure coated in weather-resistant polyurea. Whether you're touring, gigging, or installing in a venue, the SUB 15-AX is ready to deliver reliable, deep-impact bass night after night.

SUB 15-AX Features

• 2200W peak (1100W RMS) Class-D bi-amplified power
• 15” woofer with 3.0” voice coil
• 133 dB maximum SPL
• Bluetooth® remote control via LiveRemote app (iOS & Android)
• Digital crossover with built-in RCF presets
• 8-band parametric EQ + up to 45m delay + cardioid mode
• Touchscreen with swipe gestures + push encoder control
• Combo XLR/TRS inputs and dual XLR crossover outputs
• Powercon TRUE1 TOP sealed AC input/output
• Polyurea-coated plywood cabinet with M20 threaded pole mount
• Stackable design with protective steel grille and acoustic foam

SUB 15-AX Specifications

• Frequency Response: 35 Hz – 120 Hz
• Max SPL: 133 dB
• Woofer: 15” with 3.0” voice coil
• Input Connectors: 2 x Combo XLR/TRS (balanced/unbalanced)
• Output Connectors: 2 x XLR (Crossover Out)
• Input Sensitivity: -2 dBu / +4 dBu
• DSP: 2.4” color touch screen, 8-band parametric EQ, crossover presets, cardioid, delay
• Controls: Touch display + rotary push encoder
• Power Output: 2200W Peak / 1100W RMS
• Cooling: Convection
• Power Connections: Powercon TRUE1 TOP (in/out)
• Cabinet Material: Multi-ply hardwood
• Finish: Black or white polyurea coating
• Grille: Steel with sound-transparent foam backing