Features
  • 2200 W
  • 135 dB max SPL
  • 35 Hz - 120 Hz frequency response
  • 18" Woofer, 4.0" v.c.
  • Multi-ply hardwood polyurea-coated
  • Selectable gain, X-over, cardioid mode and time delay
  • Stereo XLR input, Stereo XLR signal output

The SUB 8003-AS MK3 is a self-powered extended low-frequency subwoofer with internal DSP. Its compact cabinet houses a state-of-the-art 18" transducer featuring ceramic magnets and a 4.0” voice coil. The internal amplifier manages up to 2200W power output, delivering sound pressure levels up to 135 dB. Proprietary Bass Motion Control processing provides extended linearity and remarkable sound integrity. Rear panel controls include presets, crossover frequency, and polarity selection, cardioid, and output delay settings. The tour-ready, rugged all-wood cabinet with scratch-resistant polyurea coating is stackable and lightweight, ensuring quick set-ups and tear-downs. Built specifically for highly demanding applications, SUB 8003-AS MK3 is the perfect workhorse for music professionals.


NEW

Part number:

13000844
SUB 8003-AS MK3
100-240V, EU, EAN 8024530021313

13000845
SUB 8003-AS MK3
100-240V, US, EAN 8024530021399

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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.

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 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.
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Power that moves

The most powerful amplifier in its class. RCF's improvements in transducer design make our woofers stronger and powerful, so the amplifier follows the evolution. With 2200W 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 heat exchanger in the rear of the cabinet - with no moving parts. The stereo input circuit with crossover features a new 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.
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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.
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Subwoofer alignment tutorials

Specifications
Acoustical specifications
Frequency Response:
35 Hz ÷ 120 Hz
Max SPL @ 1m:
135 dB
Transducers
Woofer:
18'', 4.0'' v.c
Input/Output section
Input signal:
bal/unbal
Input connectors:
XLR
Output connectors:
XLR
Input sensitivity:
-2 dBu/+4 dBu
Processor section
Crossover Frequencies:
Selectable
Protections:
Thermal, RMS
Limiter:
Soft Limiter
Controls:
Gain, EQ, Phase, Xover, Delay, Cardioid
Power section
Total Power:
2200 W Peak
Cooling:
Convection
Connections:
Powercon IN/OUT
Standard compliance
Safety agency:
CE compliant
Physical specifications
Handles:
One handle each side
Color:
Black
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
1.7 MB
31-03-2023
SPECSHEETS
PDF
2.2 MB
22-01-2024
PDF
2.2 MB
22-01-2024
PDF
2.2 MB
22-01-2024
PDF
2.2 MB
22-01-2024
PDF
2.2 MB
22-01-2024
STANDARD COMPLIANCES
PDF
70 KB
06-10-2023
DRAWINGS
DXF
11.4 MB
22-01-2024
PDF
1.3 MB
22-01-2024