Professional Active 18" Subwoofer
RCF - SUB 18-AX
High-Power 18" Active SubwooferRCF's SUB 18-AX is a robust and portable 18" active subwoofer, designed to elevate your live sound experience with its powerful performance and advanced features. Perfect for small to mid-sized venues, this subwoofer combines a cutting-edge transducer with a Class-D amplifier, achieving sound pressure levels up to 135 dB with remarkable clarity and headroom.
Engineered for versatility, the SUB 18-AX integrates seamlessly with 10", 12", or 15" loudspeakers, centralizing your speaker management within the subwoofer itself. It offers dual crossovers, 8-band EQs, and a range of advanced functions like routing, delays, and cardioid configurations. The subwoofer also comes with recallable crossover presets, simplifying setup and adjustment.
The SUB 18-AX features a user-friendly color touch panel and can be remotely controlled via Bluetooth®, allowing for easy adjustments in real-time. Encased in a durable, polyurea-coated all-wood cabinet with a sealed Powercon True1 Top connector, this subwoofer is built to withstand the demands of portable applications, delivering consistent, high-quality sound performance wherever you go.
135 dBMax SPL
2200W Peak Power
18"Woofer
at a glance
• Digital Crossover w/ Presets
• Multi-ply hardwood polyurea-coated
• Dual XLR/TRS combo Input + Link, Dual XLR Xover Out
• Bass Motion Control excursion management
• Powercon True1 Top Sealed AC Connector
• LiveRemote App
Advanced Subwoofer with Crossover Presets for RCF Speakers
perfection through precisionThe 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.
Large Touch Display2.4-inch Color Touch Panel
Rotary Push Encoder
Swipe Gestures for Fast Navigation
Advanced DSP for your SystemEight Recallable Snapshots
Fullrange Parametric 8 Band EQ
Up to 45 meters Delay
Precision TuningTop/Sub Alignment (meters/feet/ms)
Cardioid Function and L/R Balance for 2.1 systems
LiveRemote App
for ios/androidWhether 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.
Industry-Leading Subs
the highest, balanced level of performanceLightweight 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.
Bass Motion Control
'the new BMC algorithm breaks conventional rules'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.
Drive the Rhythm of the BeatWith 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.
The Tech Spec
| Features | Specification | 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 - 43.8 kg / 96.56 lbs |
