Features
  • 2500 Watt Peak, 1250 Watt RMS
  • 136 dB max SPL
  • 30 Hz - 120 Hz frequency response
  • 18" Woofer, 4.0" 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 8004-AS is one of the most powerful 18” subwoofers in pro-sound category. Featuring a high power, hypervented 18” woofer, with 4” inside/outside voice coils, this cabinet is designed to deliver a serious amount of low frequency. Powered by a 1250W digital amplifier module, the SUB 8004-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.

Part number:

13000392
SUB 8004-AS
220-240V, EAN 8024530010607

13000393
SUB 8004-AS
115V, EAN 8024530010751

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Powerful class D amplifiers

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.

The transducers innovators

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 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. 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.
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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, cardioid configuration options and impressive size/weight to SPL output ratio. Your crowd will be able to live an engaging immersive experience.

Cabinet & mechanics

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.
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Subwoofer alignment tutorials

Specifications
Acoustical specifications
Frequency Response:
30 Hz ÷ 120 Hz
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
Hi-Pass Frequencies:
120 Hz
Low-Pass Frequencies:
90 Hz
Protections
Thermal, RMS
Limiter
Fast Limiter
Controls
Xover, Phase switch, Deep/Punch, Outuput Delay Settings, Cardioid
Power section
Total Power
2500 W Peak, 1250 W RMS
Low frequencies
2500 W Peak, 1250 W RMS
Cooling
Convection
Connections
Powercon IN/OUT
Physical specifications
Color
Black
Size
Height
700 mm / 27.56 inches
Width
558 mm / 21.97 inches
Depth
700 mm / 27.56 inches
Weight
56 kg / 123.46 lbs
Shipping information
Package Height
761 mm / 29.96 inches
Package Width
751 mm / 29.57 inches
Package Depth
612 mm / 24.09 inches
Package Weight
60 kg / 132.28 lbs
Accessories
Downloads
MANUALS
PDF
680 KB
21-09-2018
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
146 KB
24-08-2022
PDF
168 KB
24-08-2022
DRAWINGS
DXF
1.4 MB
28-07-2017
PDF
69 KB
28-07-2017
DXF
17 MB
22-01-2024
SOFTWARE
GLL
ZIP
247 KB
04-12-2017