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RCF SUB 15AX

15″ Subwoofer – 133 dB

$2,199.00 In Stock!

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RCF SUB 15AX | 15″ Subwoofer – 133 dB | Bluetooth, DSP & 2200 W Amp

Professional 15" Active Subwoofer for Live Sound

The RCF SUB 15-AX is a versatile 15-inch active subwoofer engineered for live sound applications. It combines a powerful 2200-watt Class-D amplifier with advanced digital signal processing for superior bass response and exceptional clarity. Designed for small to mid-sized venues, the SUB 15-AX is ideal for use with 10" or 12" loudspeakers, offering seamless integration and advanced control features to enhance any sound system.

RCF SUB 15-AX Competitive Differences

  • 2200W Class-D Amplifier: Provides high efficiency and power output with minimal thermal loss.
  • Bass Motion Control (BMC): Advanced woofer management for deep, distortion-free bass.
  • Digital Crossover with Presets: Factory-tuned for RCF speakers for optimized performance.
  • 2.4-Inch Color Touch Panel: Intuitive navigation for quick DSP adjustments.
  • LiveRemote App: Wireless control via iOS and Android devices.
  • Durable Polyurea-Coated Cabinet: Multi-ply hardwood construction ensures long-lasting durability.
  • Powercon TRUE1 Connector: Sealed AC connection for reliability in demanding environments.
  • Cardioid Configurations: Perfect for optimizing subwoofer arrays.

RCF SUB 15-AX Description

The RCF SUB 15-AX is a professional-grade subwoofer designed to deliver impactful bass for live sound systems. Featuring a 15-inch woofer housed in a rugged bass reflex cabinet, it provides frequencies down to 35 Hz with remarkable clarity and precision. Its DSP offers 8-band parametric EQ, time alignment, cardioid configurations, and recallable crossover presets, making it easy to optimize your system for any venue. This subwoofer’s portable design includes ergonomic handles, an M20 threaded pole mount, and a steel grille with sound-transparent foam for added protection. Its compatibility with the RCF LiveRemote App allows for precise wireless control, while the durable polyurea coating ensures it withstands the rigors of live performance.

SUB 15-AX Features

  • 2200W Class-D Amplifier (1100W RMS)
  • 15-inch woofer with 3.0-inch voice coil
  • Bass Motion Control for enhanced bass management
  • Digital crossover with presets for RCF speakers
  • 2.4-inch color touch display with rotary encoder
  • LiveRemote App for wireless control
  • Dual XLR/TRS combo inputs and XLR crossover outputs
  • Polyurea-coated hardwood cabinet for durability
  • Powercon TRUE1 TOP mains connectors
  • M20 threaded pole mount for secure speaker placement
  • Steel grille with sound-transparent foam backing

SUB 15-AX Specifications

  • Acoustical Specifications:
    • Frequency Response: 35 Hz – 120 Hz
    • Max SPL: 133 dB
    • Woofer: 15-inch with 3.0-inch voice coil
  • Input/Output Section:
    • Input Signal: Balanced/Unbalanced
    • Input Connectors: Combo XLR/Jack
    • Output Connectors: XLR
    • Input Sensitivity: -2 dBu / +4 dBu
  • Processor Section:
    • Protections: Thermal
    • Limiter: Soft Limiter
    • Controls: Volume control and touch screen for parameter management
  • Power Section:
    • Total Power: 2200W peak, 1100W RMS
    • Cooling: Convection
    • Connections: Powercon TRUE1 TOP IN/OUT
  • Physical Specifications:
    • Cabinet Material: Multi-ply hardwood
    • Handles: One handle per side
    • Pole Mount: M20 threaded
    • Grille: Steel with sound-transparent foam
    • Color: Black or White
  • Dimensions and Weight:
    • Height: 23.23 inches (590 mm)
    • Width: 16.54 inches (420 mm)
    • Depth: 23.23 inches (590 mm)
    • Weight: 69.23 lbs (31.4 kg)
  • Shipping Information:
    • Package Height: 25.2 inches (640 mm)
    • Package Width: 25.59 inches (650 mm)
    • Package Depth: 18.9 inches (480 mm)
    • Package Weight: 80.47 lbs (36.5 kg)

What's in the Box

  • RCF SUB 15-AX Subwoofer
  • Powercon TRUE1 AC Connector
  • Quickstart Guide

RCF USA SUB15-AX (RCF SUB15 AX)

Research with AI

Brand RCF
Name RCF SUB 15AX | 15″ Subwoofer – 133 dB | Bluetooth, DSP & 2200 W Amp
Primary Category Active Subwoofer

Build Material Multi-ply hardwood with polyurea coating
Depth 23.23 inches inch
Dimensions Height: 23.23 inches (590 mm), Width: 16.54 inches (420 mm), Depth: 23.23 inches (590 mm)
Height 23.23 inches inch
Included Accessories Powercon TRUE1 AC Connector, Quickstart Guide
Mounting Options M20 threaded pole mount
Weight 69.23 lbs (31.4 kg) kg
Width 16.54 inches inch

Control Interfaces 2.4-inch color touch panel, rotary encoder, LiveRemote App wireless control
Wireless Capabilities LiveRemote App for wireless control via iOS and Android devices

Frequency Response 35 Hz – 120 Hz Hz
Impedance Not specified ohms
Lumen Output N/A lumens
Max SPL 133 dB dB
Power Consumption 2200W peak W
Power Rating 2200W peak, 1100W RMS W
Wattage 2200W peak, 1100W RMS W

Woofer Size 15-inch inch

Technical Specifications

Frequency Response: 35 Hz – 120 Hz; Max SPL: 133 dB; Woofer: 15-inch with 3.0-inch voice coil; Power: 2200W peak, 1100W RMS; Inputs: Combo XLR/TRS; Outputs: XLR; Controls: Volume, touch screen; Cooling: Convection; Dimensions: 23.23" H x 16.54" W x 23.23" D; Weight: 69.23 lbs (31.4 kg); Cabinet: Multi-ply hardwood with polyurea coating; Mounting: M20 threaded pole mount.

Included Accessories

RCF SUB 15-AX Subwoofer, Powercon TRUE1 AC Connector, Quickstart Guide.

(1/2) RCF SUB 15AX | 15″ Subwoofer – 133 dB | Bluetooth, DSP & 2200 W Amp By Michael 128 pts
May 12, 2026

The RCF SUB 15-AX is a strong option if you want a compact 15-inch powered subwoofer that still has real impact. The 15” woofer with a 3” voice coil gives it a solid punch for its size, and the 2200-watt power rating gives it enough headroom for mobile DJs, live sound setups, corporate events, and compact PA systems. What I like about the RCF SUB 15-AX is that it is not just a basic “plug it in and hope it matches” sub. The onboard color touch panel makes setup much easier, especially if you are adjusting settings quickly at an event. The crossover presets are especially useful when pairing it with different RCF tops, since they help take some guesswork out of system tuning. The 35 Hz–120 Hz frequency response gives the SUB 15-AX usable low-end extension while keeping the response focused for music playback and live sound reinforcement. RCF’s Bass Motion Control is also a nice feature because it helps manage woofer movement, which can improve control and consistency at higher output levels. Another advantage is the liveRemote app, which allows wireless control over EQ, delay, and crossover settings. For event production, that can save time during setup and make small adjustments easier from the listening position. For anyone already using RCF speakers, the RCF SUB 15-AX makes a lot of sense. It is compact compared to larger 18-inch subs, but still hits harder than many people expect from a 15-inch box.

(2/2) RCF SUB 15AX | 15″ Subwoofer – 133 dB | Bluetooth, DSP & 2200 W Amp By taso D 155 pts
February 24, 2026

Amazing sub! Great build quality and output. The app is extremely convenient, but more importantly the built in presets for most rcf speakers has made dialing it in a breeze. Have used it at 2 events in medium sized venues (about 150 and 175 guests) and the sound was incredible, with plenty of head room should I have needed it. Looking to purchase this combo in white next!

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Option #3 - Business Lease Financing

Option #4 - Free Lay-Away Program

  • -Call 877-775-7635 to get started
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  • -Pay when you can & we'll ship when it's paid off
  • -FREE to use ($10 initial charge is applied to final payment)

DJ & AUDIO > Speakers & Subs > Powered Subwoofers
UPC: 8024530021849
Brand: RCF
Shipping Details: 89.00 lbs, 26 x 19 x 26 inches

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RCF SUB 15AX | 15″ Subwoofer – 133 dB | Bluetooth, DSP & 2200 W Amp
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