RCF SUB 18-AS Professional Active Subwoofer (Black) - 220-240V
SKU: 60292440402

RCF SUB 18-AS Professional Active Subwoofer (Black) - 220-240V

Sale price$1495.80 Regular price$1662.00
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Description

RCF SUB 18-AS Professional Active Subwoofer (Black) - 220-240VThe SUB 18 AS is a portable 18" high power active subwoofer for live sound applications. It features a state of the art transducer and a powerful 2200 Watts Class D amplifier that delivers sound pressure levels up to 135 dB with exceptional headroom. Designed as the ideal complement for 10", 12" or 15" loudspeakers, it includes Bass Motion Control algorithm for extended bass response at any volume. The connection panel features mono stereo Combo

The SUB 18-AS is a portable 18" high-power active subwoofer for live sound applications. It features a state-of-the-art transducer and a powerful 2200 Watts Class-D amplifier that delivers sound pressure levels up to 135 dB with exceptional headroom. Designed as the ideal complement for 10", 12" or 15" loudspeakers, it includes Bass Motion Control algorithm for extended bass response at any volume. The connection panel features mono/stereo Combo inputs, an XLR stereo link, and XLR crossover outputs. Rear panel controls include volume, polarity, and low-pass frequency selection. The rugged all-wood cabinet with scratch-resistant polyurea coating makes it durable, easy to carry and install securely. With its versatility, sound quality, and high power output, the SUB 18-AS is perfect for small to mid-sized venues and portable applications.

Legendary subwoofers

RCF subwoofers are the first choice of many sound engineers, thanks to the very high SPL levels at very low frequencies, small dimensions compared to the competitors, self-powered design, internal delay control, long-term reliability, cardioid configuration options, and impressive size/weight to SPL output ratio. Your crowd will be able to live an engaging immersive experience in both live sound or DJing applications.

 

High-Power Transducer

 

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 18", 4.0" voice coil 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

 

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.

 

The right drive to the beat

 

With 2,200W power, our Class-D amplifier is able to manage extreme sound pressure levels with an ultra-fast attack, realistic transient response, and very low heat loss. So energy-efficient that there's no need for a cooling fan. The amplifier is attached to a solid aluminum heatsink at the rear of the cabinet with no moving parts. The stereo input circuit with crossover 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 joining high efficiency with minimum weight.

 

Tour-Ready Workhorse

 

The RCF cabinets are made of high-quality multi-ply hardwood coated with a black polyurea finish. The subs are stackable and light-weight, for easy set-up and tear down, thanks to the ergonomic handles. A pole receptacle on top and side allows the use of the box in various configurations. The powder-coated front grille integrates a special transparent-to-sound foam backing on the inside to further protect the transducers from dust.

Features

  • 2200Watt
  • 135 dB max SPL
  • 35 Hz - 400 Hz frequency response
  • 18" Woofer, 4.0" voice coil
  • Birch tour grade cabinet with polyurea coating
  • Mono/Stereo XLR/TRS combo In + Link, Stereo XLR Xover Out
  • Volume, polarity, and lowpass frequency selection

Specifications

Acoustical specifications

  • Frequency Response 35 Hz - 400 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 Volume, Polarity, Low pass filter frequency

Power section

  • Total Power 2200 W Peak
  • Cooling Convection
  • Connections VDE

Standard compliance

  • Safety agency CE compliant

Physical specifications

  • Cabinet/Case Material Baltic birch plywood
  • Handles 2 side
  • Pole mount/Cap M20 thread
  • Grille Steel
  • Color Black

Size / Weight

  • Height 693 mm / 27.28 inches
  • Width 505 mm / 19.88 inches
  • Depth 685 mm / 26.97 inches
  • Weight 44.5 kg / 98.11 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 51 kg / 112.44 lbs
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 60292440402

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Andrew Hopkins
Birmingham, US
★★★★★ 4
Nice, large room divider for privacy
Color: Black, Size: 1 Large Panel
Easy to assemble. Fabric screen covers the large frame very well and provides privacy by separating spaces. I would not exactly call it sturdy, but it does the job and stands freely with no problem. It’s lightweight and portable if you need to move it. Came with a screwdriver and wrench tool for assembly.
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Reviewed in the United States on March 7, 2026
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Zee
Dallas, US
★★★★★ 5
Solid divider
Color: Black, Size: 1 Large Panel
Easy to assemble, is not see through and seems sturdy. The optional wheels are a nice touch.
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Reviewed in the United States on March 18, 2026
T
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T & J Hershberger
Charlottesville, US
★★★★★ 5
Perfect solution
Color: Black, Size: 2 Large Panels, Color: Black, Size: 2 Large Panels
Was a perfect solution to blocking off a part of a room for guest stay. My only wish was a bag for it to go in while not in use. Right now we’ve got it tucked away in a corner where it’s waiting to be used again. I put one wheel through a wooden partition gate (for dogs) and pushed a couch up against it and it held great keeping young kids out of the room. Though the dog figured it out pretty quickly haha I love the fabric in between the sections as well as the fact that they can be completely separate for individual use as needed. Makes it very useful in more scenarios.
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Reviewed in the United States on April 22, 2026
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Shelby Oostwouder
Charlottesville, US
★★★★★ 5
Good Tall Screen
Color: Grey, Size: 1 Large Panel
Easy to roll, easy to assemble with two people, great height, blocks direct sun well
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Reviewed in the United States on April 18, 2026
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Aly
Alexandria, US
★★★★★ 4
Great Divider, bad instructions
Color: Black, Size: 1 Large Panel
Happy with this as a room divider. Good price point and sturdy. I suggest skipping the directions and using common sense! The steps are made complicated when they are not ... and if you follow the directions you will have to go back and fix the skipped step of inserting the rods into the screen BEFORE securing the frame. Would buy again.
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Reviewed in the United States on November 15, 2025

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