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RCF SUB 8004-AS (Active)

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The black SUB 8004-AS Professional Series Active Subwoofer from RCF features an 18" transducer with 4" inside/outside voice coils with the cabinet being designed to maximize low frequency resonance. It is of a direct radiating, high output, large-format sub woofer system design, proven in complementing high efficiency, full-range loudspeakers. 

The SUB 8004-AS has been designed to extract the efficiency from every part of the system, resulting in the effortless reproduction of low frequency transient response. As a self-powered system, the transducers, amplification, and DSP control electronics of this sub are designed to work in harmony, and optimize performance and maximize perceived power output. 

The subwoofer's efficiently tuned cabinet houses a precision backvented, long-excursion, new high power 18" cone driver, providing a fast and controlled reproduction of the bass frequency range. This subwoofer features a 4" inside/outside voice coil to minimize power compression and extend the life of this product. 

The driver has also been engineered for maximized efficiency using high gauss ferrite magnets for increased powerful magnetic field strength. High magnetic field strength increases the driver's sensitivity, which yields improved high output while keeping heat dissipation requirements within operational tolerances. 

This subwoofer is powered by a Class D, 1,250W digital amplifier module, which operates with higher efficiency, in a lighter weight format. It delivers fast attack, realistic transient response and good audio performance. The amplifier features a solid mechanical aluminum structure, which not only stabilizes the amplifier during transportation but also assists it in heat dissipation. 

The input board includes a volume control, and DSP feature controls, such as a deep/punch switch, high pass switch, phase switch, time delay, and a preset for Cardioid setup. An easy to reach delay knob on the back allows to set the overall delay of the speaker, in meters, according to its specific application. 3 status LEDs - Power / Signal / Status are provided for monitoring the system. 

The DSP control electronics and power supply is integrated into a single, field-replaceable module mounted in the rear of the cabinet. The cabinet is constructed of multi-ply hardwood and coated with a textured black finish. Integral metal grilles lined with acoustical black mesh protect the cone drivers. Integrated mechanics are for multiple configuration with HDL 20-A Active Line Array Module. Two side handles are included to ease in speaker handling.

Pole mount seat
2,500W peak power; 1,250W RMS
136 dB maximum SPL
30 Hz to 120 kHz frequency response
1 x 18" woofer
DSP controlled input section with selectable presets
Delay control
Integrated mechanics for multiple configuration with HDL 20-A Active Line Array Module
Baltic birch tour-grade cabinet
Applications: Live sound, rental, portable PA, clubs, ballrooms, live theatres, houses of worship, theme parks, music playback and sound reinforcement in small- and mid-size venues, and corporate A/V professionals and sound system hire companies

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Thông số Kỹ thuật:

Frequency Response 30 to 120 Hz
SPL Maximum 136 dB
Woofer 1 x 18.0" (457.2 mm), 4.0" (101.6 mm) voice coil
Input Signal Impedance: Balanced/unbalanced
Input/Output Connectors XLR
Input Sensitivity -2 / +4 dBu
Crossover Frequencies Selectable 90 Hz to 120 Hz
Protection Thermal-RMS
Limiter Fast
Controls Xover, phase switch, deep/punch, output delay settings, Cardioid
Total Power 2,500 W Peak / 1,250 W RMS
Cooling Convection
Connection Powercon in/out
Cabinet Baltic birch
Hardware 2 x M20, 4 x wheels mounting points
Handle 2 on side
Color Black
Dimensions (H x W x D) 22.56 x 21.95 x 27.56" (709.00 x 700.00 x 1,109.00 mm)
Weight 112.20 lb (51.00 kg)