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

The SUB 18-AX is a portable 18" high-power active subwoofer for live sound applications with fully featured processing, a color touch panel, and remote control via Bluetooth®. The combination of a latest-generation transducer with a powerful Class-D amplifier delivers sound pressure levels up to 135 dB with exceptional clarity and headroom. SUB AX subwoofers are designed specifically for small to mid-sized venues and ideal for portable applications. SUB 18-AX is the ideal complement for 10", 12” or 15" woofer-size loudspeakers; it centralizes speaker management inside the subwoofer, providing dual crossovers, 8-band EQs, routing, delays, cardioid configurations, and recallable crossover presets. The polyurea-coated all-wood cabinet features a sealed Powercon True1 Top connector.


NEW

Part number:

13000834
SUB 18-AX
100-120V, Black, EAN 8024530021856

13000836
SUB 18-AX
220-240V, Black, EAN 8024530021825

13000879
SUB 18-AX W
100-120V, White, EAN 8024530021900

13000880
SUB 18-AX W
220-240V, White, EAN 8024530022051

Advanced Subwoofer with Crossover Presets for RCF Speakers

The key to optimizing your sound system is the precise adjustment of your subwoofer's time alignment. This not only elevates sound quality but also enhances bass response, giving your audience both the beat they can hear and the vibe they can feel.

With internal factory-tuned crossover presets for RCF speakers, your sound system is show-ready in a few easy steps. Simply connect your satellite speakers to the SUB AX, select the crossover preset from the user interface, and you are ready to go. FiRPHASE linear phase is extended to match the subwoofer phase down to the lowest frequencies.
 
Responsive Image

Large Touch Display

2.4-inch Color Touch Panel
Rotary Push Encoder
Swipe Gestures for Fast Navigation
 
 

Advanced DSP for your System

Eight Recallable Snapshots
Fullrange Parametric 8 Band EQ
Up to 45 meters Delay

Precision Tuning

Top/Sub Alignment (meters/feet/ms)
Cardioid Function and L/R Balance for 2.1 systems
 

LiveRemote App

Whether you’re a musician, DJ, or pro sound engineer, the RCF LiveRemote App, the same app that is used with the  ART 9 AX, is now available with the SUB AX models. On the subs, crossover preset selection, system EQ and delay adjustments and crossover individual settings are quickly accessible. When two subwoofer models are paired, they can be set up for 2.2 operation. Available for Android and iOS phones and tablets.

Responsive Image

Gig-Ready Solution

Responsive Image
RCF cabinets are made of high-quality multi-ply hardwood coated with a rugged black (or white) polyurea finish. Subs are stackable and lightweight, have ergonomic handles with rubber grips, and are designed for easy set-up and tear-down. The M20 threaded pole mount on the top of the cabinet supports RCF speakers of various sizes. The powder-coated front grille integrates a special transparent-to-sound foam backing on the inside to further protect transducers from dust. SUB AX Series subwoofers are built to last, with powerCON® TRUE1 TOP mains connectors, so you can be sure that they will stand up to the rigors of use and transport. 
Responsive Image

Industry-Leading Subs

Lightweight and powerful, RCF woofers are a reference in high performance. RCF Precision Transducers engineers have developed new specific magnet sizes and molds to optimize magnetic flux while maintaining a low weight. The magnetic circuit topology is capable of delivering the highest, balanced level of performance in three specific areas: maintenance of a consistent, high integrity magnetic flux gap, exceptionally low distortion and efficiently integrating the magnetic circuit in a minimum weight design. The T-pole design optimization generates the minimum amount of flux modulation in the magnetic assembly during typical voice coil movement within the gap.
Responsive Image

Drive the Rhythm of the Beat

With 2,200 Watts of power, our Class-D amplifier can manage extreme sound pressure levels with an ultra-fast attack, realistic transient response, and very low thermal loss. The stereo input circuit features a low distortion design with an advanced safety limiter, maintaining the true character of the input signal at all levels. RCF amplifiers are designed according to EN62368-1 for maximum safety and present a Switch Mode Power Supply section combining high efficiency with minimum weight.

Responsive Image

Bass Motion Control

When searching for an extended bass with enhanced performance, RCF engineers found a way to remove the high-pass filter, replacing it with a forward-thinking approach. Introducing BMC (Bass Motion Control), the newly advanced woofer excursion management feature. The speaker equipped with BMC can handle the lowest audible frequencies without affecting the woofer stability, with extended linearity and better sound integrity.

The BMC method works by creating a complete map of the dynamic behavior of the woofer, to generate a custom algorithm that only limits over-excursions. This gives total freedom of signal reproduction to the transducer. When high-pass filters normally protect the woofer motion from becoming destructive but change the phase behavior, the new BMC algorithm breaks conventional rules.
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 monitor.
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
Handles
1 handle per side
Pole mount/Cap
Yes
Color
Black, White
Size
Height
693 mm / 27.28 inches
Width
505 mm / 19.88 inches
Depth
685 mm / 26.97 inches
Weight
37.6 kg / 82.89 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
44 kg / 97 lbs
Accessories
Downloads
MANUALS
PDF
3.9 MB
16-05-2024
GUIDES
PDF
91 KB
30-04-2024
SPECIFICATIONS
PDF
2.5 MB
16-05-2024
PDF
2.5 MB
16-05-2024
PDF
2.5 MB
16-05-2024
PDF
2.5 MB
16-05-2024
PDF
2.5 MB
16-05-2024
STANDARD COMPLIANCES
PDF
75 KB
02-05-2024
DRAWINGS
DXF
13.7 MB
28-03-2024
PDF
1.1 MB
28-03-2024