Skip to product information
1 of 6


RCF SUB 8003-AS II Professional 2200W Powered 18" Subwoofer

RCF SUB 8003-AS II Professional 2200W Powered 18" Subwoofer

Regular price $2,299.00 USD
Regular price Sale price $2,299.00 USD
Sale Sold out
Key Features
  • For Live and Club Applications
  • Single 18" Woofer with 4" Voice Coil
  • 2200W Class-D Amplifier
  • 135 dB Max SPL
  • 35 to 120 Hz Frequency Response
  • Two XLR Inputs and Two Thru Outputs
  • Onboard DSP for Level, Delay, and Preset
  • Baltic Birch Plywood Cabinet

Designed to complement any full-range PA speaker system, the RCF SUB 8003-AS II is an 18" high-powered active subwoofer well suited for bands, DJs, clubs, touring companies, and rental houses. The subwoofer's integrated amplifier delivers 2200W to the 18" driver, which offers a frequency range of 35 to 120 Hz with a maximum SPL of 135 dB, making it great for mid- to large-sized venues and touring applications.

Rear-panel controls include 12 presets, crossover frequency, polarity switch, Deep/Punch selection, cardioid, and output delay settings. The tour-ready, rugged all-wood cabinet with scratch-resistant polyurea coating is easy to carry and secure for installation. The SUB 8003-AS II is built specifically for demanding live sound applications with deep, powerful bass response.

At a Glance
  • 2200W
  • 135 dB max SPL
  • 35 to 120 Hz frequency response
  • 18" woofer, 4.0" voice coil
  • Selectable gain, X-over, and delay
  • Birch tour grade cabinet
  • Stereo XLR input, Stereo XLR signal output
Powerful Class-D Amplifier
RCF's Class-D power amplifier technology packs huge performance operating with high efficiency into a lightweight solution. RCF amplifiers deliver an ultra-fast attack, realistic transient response, and impressive audio performance. The amplifier features a solid machined aluminium structure, which not only stabilizes the amplifier during transportation, but also helps the fan-less heat dissipation. The amplifier presents an SMPS power supply section to produce maximum output and minimum weight.
Innovative Transducers
RCF specializes in developing advanced transducer technology, including the application of high-tech materials such as Neodymium, Carbon Fiber, Pure Titanium, Kevlar, Kapton, and Mylar hybrids. With over 70 years of design and manufacturing experience in the market, RCF has been instrumental in technological inventions, such as carbon fiber cone molding, double silicon spiders, inside/outside voice coil windings to edge wound voice coil manufacturing, and pure titanium diaphragm forming. Latest developments have resulted in designing state of the art neodymium magnetic circuits, radically new voice coil ventilation systems, and groundbreaking direct-drive voice coil assemblies.
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, cardioid configuration options, and impressive size/weight to SPL output ratio. Your crowd will be able to live an engaging immersive experience.
Cabinet and Mechanics
The RCF cabinets are made of the best multi-ply hardwood coated with a textured black finish. The subs are stackable and lightweight for easy setup and tear down thanks to the ergonomic handles. Pole receptacles on top and side allow 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 transducer from dust.
Extended Low Presets (more extended and linear frequency response):


  • L1: 30 to 60 Hz
  • L2: 30 to 80 Hz
  • L3: 30 to 100 Hz
  • L4: 30 to 125 Hz

Hard Presets (less extended frequency response, more pressure at 50 - 60 Hz):

  • H1: 40 to 60 Hz
  • H2: 40 to 80 Hz
  • H3: 40 to 100 Hz
  • H4: 40 to 125 Hz

Cardioid Presets (in combination with L presets):

  • C1: 30 to 60 Hz
  • C2: 30 to 80 Hz
  • C3: 30 to 100 Hz
  • C4: 30 to 125 Hz
Configuration Active Subwoofer
Enclosure Type Bass-Reflex Subwoofer
Total Power Capacity 2200 W Peak
Amplifier Power Rating 2200 W Peak
1100 W Program
550 W RMS
Amplifier Class Class-D
MF Driver None
LF Driver 1 x 18" / 45.7 cm Woofer
LF Voice Coil 4" / 10.2 cm
Frequency Response 35 Hz to 120 Hz
Maximum SPL 135 dB
Input Sensitivity +4 dBu to -2 dBu
Protections Output Limiter, Thermal
Audio I/O 2 x XLR 3-Pin Female Balanced Line Input (Lockable)
2 x XLR 3-Pin Male Balanced Line Thru
Network I/O None
USB None
Wireless Connectivity None
Signal Processing
EQ Yes
Parametric EQ None
Semi-Parametric EQ None
Alignment Delay Yes
Phase Adjustment Yes
Digital Signal Processing Delay, FIR Filter, User Settings
AC Input Power 100 to 120 VAC, 60 Hz 
AC Power Connector 1 x PowerCON TRUE1 Input (Locking)
1 x PowerCON TRUE1 Output (Locking)
Mounting 1 x Pole Socket (Top)
Handles 1 x Each Side
Cooling Convection
Construction Material Metal Grille, Plywood
Certifications CE
*as per Manufacturer
Dimensions 27.3 to 20.5 x 20.6 x 27.6" / 69.3 to 52.1 x 52.3 x 70.1 cm
Weight 112.4 lb / 51 kg
Item # RCSUB8003MK2
Manufacturer RCF
View full details
  • Free Shipping

    Pair text with an image to focus on your chosen product, collection, or blog post. Add details on availability, style, or even provide a review.

  • Hassle-Free Exchanges

    Pair text with an image to focus on your chosen product, collection, or blog post. Add details on availability, style, or even provide a review.