RCF SUB-8005AS Active 21" Powered Subwoofer


RCF SUB-8005AS Active 21" Powered Subwoofer

(Call For D.O'B. Sound Pro Price)

  • 2500 Watt Peak, 1250 Watt RMS
  •  137 dB max SPL
  •  27 Hz - 120 Hz frequency response
  •  21" Woofer, 4.5" voice coil vented woofer
  •  DSP controlled Input section with selectable presets
  •  Delay control
  •  Baltic birch tour grade cabinet
  • Compatible with NXL23-A (stacking)
  • Compatible with NXL24-A (stacking)
  • Multiple configurations with HDL 10-A and HDL 20-A

The SUB 8005-AS is on of the most powerful 21” subwoofers in pro-sound category. Featuring a high power, hypervented 21” woofer, with 4.5” inside/outside voice coils, this cabinet is designed to deliver a serious amount of low frequency. Powered by a 2500W digital amplifier module, the SUB 8005-AS can perform in the most demanding situations. The input board includes volume control, deep/punch switch, high pass switch, phase switch, cardioid, time delay.


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 stabilises the amplifier during transportation but also helps the fan-less heat dissipation. All the amplifiers present SMPS power supply section to produce maximum output and minimum weight.


RCF specialises 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 60 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. Our latest developments have resulted in designing state of the art neodymium magnetic circuits, radically new voice coil ventilation systems and ground breaking direct drive voice coil assemblies.


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.


The RCF cabinets are made of baltic birch plywood coated with a textured black 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.

SUB 8005-AS Active High Power Subwoofer

Compatible NXL23-A (stacking)
NXL24-A (stacking)
Frequency Response 27 to 120 Hz @ -3 dB
SPL 137 dB
Woofer 21", 4.5" voice coil
Input Signal Balance/unbalanced
Input and Output Connectors XLR
Input Sensitivity -2 / +4 dBu
Crossover Frequencies 90 to 120 Hz
Protections Thermal, RMS
Limiter Fast limiter
Controls Xover, Phase switch, Deep/Punch, Output Delay settings, Cardioid
Amplifier Total power: 2500 W peak
Low frequencies: 2500 W peak
Total power: 1250 W RMS
Low frequencies: 1250 W RMS
Cooling: Convection
Connections: Powercon in-out
Cabinet Material: Baltic birch
Hardware: 2 x M20, 4 x wheels mounting points
Handles: 2
Color: Black
Dimensions Height: 32.48" (825 mm)
Width: 23.62" (600 mm)
Depth: 31.69" (805 mm)
Weight 146.8 lb (66.6 kg)


D.O'B. Sound Pro is an Authorized Dealership of this brand and all brands that we carry. If we do not have current stock, we can special order directly from the manufacturer any item still in production.

Just send us a message and we will get you an ETA and pricing.



  • Most items are shipped out within 2 business days upon cleared payment
  • Ground shipping is free (orders over $40)
  • Free shipping only to the lower 48 states
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