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.
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.
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.
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.

• 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

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

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