RCF SUB 8004-AS - 2500W 18-inch Powered Subwoofer with 4-inch Voice Coil in Black Finish

The RCF SUB 8004-AS is a powerhouse 18" subwoofer designed to deliver unmatched low-frequency performance, making it one of the most powerful subwoofers in the professional sound industry. Equipped with a hypervented 18" woofer and a 4" inside/outside voice coil, this subwoofer is built to handle high output levels with exceptional linearity and low distortion. Powered by a 1250W digital Class-D amplifier, the SUB 8004-AS is capable of reaching up to 2500W peak output, ensuring deep, impactful bass for even the most demanding audio environments. This subwoofer is perfect for large-scale events, concerts, and installations where powerful and accurate bass reproduction is essential.

RCF's Class-D amplifier technology is the core of the SUB 8004-AS, providing high efficiency and lightweight performance without compromising on sound quality. The amplifier features a solid machined aluminum structure that not only stabilizes the unit during transport but also enhances convection cooling to keep the system running at peak performance without the need for a fan. The SMPS (Switched-Mode Power Supply) allows the amplifier to deliver maximum output while keeping the weight to a minimum, making this subwoofer easy to handle during setup and teardown.

Designed with RCF's innovative transducer technology, the SUB 8004-AS features an 18" woofer with a high-performance 4.0" voice coil that is specifically engineered for high-output, low-frequency reproduction. The woofer is crafted using high-tech materials such as neodymium and carbon fiber, which enhance performance, durability, and efficiency. Additionally, the internal voice coil ventilation system and the direct drive voice coil assembly help to maintain optimal performance, even during extended use at high SPLs.

The cabinet of the SUB 8004-AS is constructed from Baltic birch plywood and coated with a durable, textured black finish. This robust construction ensures that the subwoofer can withstand the rigors of touring while maintaining its high-performance capabilities. The subwoofer is also equipped with ergonomic handles, making it easy to move and position. The M20 pole mount receptacle on both the top and side of the subwoofer provides flexibility in rigging and allows it to be used in a variety of configurations, whether as part of a stacked system or with compatible RCF speakers like the NXL23-A and NXL24-A, as well as the HDL 10-A and HDL 20-A for integrated setups.

The SUB 8004-AS features an advanced DSP-controlled input section with selectable presets, allowing users to tailor the subwoofer's performance to suit specific applications. Controls for crossover, phase switch, deep/punch, output delay settings, and cardioid configuration are included, giving users the flexibility to optimize bass response for different environments and needs. The subwoofer's frequency response ranges from 30 Hz to 120 Hz, with a low-pass filter at 90 Hz and a high-pass filter at 120 Hz, ensuring optimal integration with the rest of the sound system. With a maximum SPL of 136 dB, the SUB 8004-AS can provide powerful and immersive low-frequency performance for large audiences.

The SUB 8004-AS is the perfect solution for sound engineers and event organizers who demand high-output bass in a reliable, durable, and easy-to-integrate subwoofer. Whether used in live sound reinforcement, festivals, corporate events, or other large-scale productions, the RCF SUB 8004-AS offers exceptional performance, flexibility, and control, making it a top choice for professionals seeking high-quality bass reproduction.

Features

• 2500W peak, 1250W RMS Class-D amplifier for high output and efficient bass reproduction
• 18" woofer with a 4" voice coil, providing deep and impactful low-frequency response
• Frequency response of 30 Hz to 120 Hz, with low-pass filter at 90 Hz and high-pass filter at 120 Hz
• Advanced DSP-controlled input section with selectable presets, including deep/punch switch and cardioid configuration
• Built-in output delay settings for improved alignment with other speakers
• Durable Baltic birch plywood cabinet with a textured black finish and ergonomic handles for easy transport
• Compatible with NXL23-A, NXL24-A, HDL 10-A, and HDL 20-A for versatile system configurations
• Integrated M20 pole mount for flexible placement options
• Maximum SPL of 136 dB, ideal for large events and demanding sound environments
• RDNet compatibility for remote monitoring and control of system parameters
• Reliable performance in demanding environments with robust construction and weatherproof capabilities

Specifications

Acoustical specifications

• Frequency Response: 30 Hz ÷ 120 Hz

Transducers

• Woofer: 1 x 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

Standard compliance

• Safety agency: CE compliant

Physical specifications

• Pole mount/Cap: M20 thread
• Color: Black

Size / Weight

• Height: 27.56 inches
• Width: 21.97 inches
• Depth: 27.56 inches
• Weight: 123.46 lbs

Shipping information

• Package Height: 29.96 inches
• Package Width: 29.57 inches
• Package Depth: 24.09 inches
• Package Weight: 132.28 lbs