RCF SUB 9004-AS - 2800W 18-inch Powered Subwoofer with RDNet and 4-inch Voice Coil in Black Finish

The RCF SUB 9004-AS is a high-performance active subwoofer designed for professional sound reinforcement applications. Featuring a powerful 18" neodymium subwoofer with a 4" inside/outside voice coil, this subwoofer delivers exceptional low-frequency performance, with a frequency response ranging from 30 Hz to 400 Hz. It is ideal for AV rental inventories and large events, providing a clean, punchy bass output with minimal distortion. Powered by an ultra-efficient 2800W peak, 1400W RMS Class-D amplifier, the SUB 9004-AS ensures high SPL levels, reaching up to 136 dB, even in the most demanding environments.

At the core of the SUB 9004-AS is RCF's advanced Class-D amplifier technology, which delivers an incredibly fast attack and realistic transient response. This amplifier also integrates a 32-bit DSP circuit, providing precise control over various parameters such as amplitude, equalization, delay, and more. The DSP is remotely controllable via RDNet, RCF's proprietary network management platform, which ensures easy monitoring and adjustment of the system's performance across multiple devices. RDNet enables the adjustment of presets, monitoring of system health, and fine-tuning of various settings in real-time.

The SUB 9004-AS's transducer is designed for durability and exceptional performance. The 18" woofer incorporates a 30% carbon fiber, 20% fiberglass, and 50% cellulose pulp cone, which improves the rigidity and robustness of the cone to prevent deformation, ensuring high efficiency. This high-tech material composition, along with the 4.0" voice coil wound on a fiberglass former, guarantees efficient cooling and excellent energy transfer. Additionally, the unique Hyper Ventilation system designed by RCF ensures low power compression, even under heavy load conditions, contributing to extended performance without distortion.

In terms of construction, the SUB 9004-AS is housed in a Baltic birch plywood cabinet that has been treated for weatherproofing, ensuring its durability and reliability in various environments. The cabinet is also designed to withstand long-term use and transportation, with the separate housing for the amplifier ensuring that all components operate efficiently. The subwoofer is stackable, lightweight, and features a convenient pole mount/Cap (M20 thread) for versatile configurations. A removable dolly caster-board with rugged tour-grade casters is included for fast and efficient transport, making setup and teardown quick and easy.

The SUB 9004-AS is highly customizable with DSP-controlled input sections that offer selectable presets, delay control, and an adjustable low-pass filter, making it ideal for use in both indoor and outdoor environments. The high-pass frequencies are selectable at 35 Hz or 50 Hz, while the low-pass frequency range can be adjusted between 50 Hz and 400 Hz to suit the specific needs of the application. The unit also features protections such as thermal and RMS limiting to ensure reliability during extended use.

Overall, the RCF SUB 9004-AS is a versatile, high-powered subwoofer that combines advanced technology, exceptional performance, and durability, making it the perfect solution for large-scale sound systems and demanding audio environments.

Features

• 2800W peak, 1400W RMS Class-D amplifier for high-efficiency bass performance
• 18" neodymium subwoofer with 4" voice coil for deep, clear low-frequency reproduction
• Frequency response of 30 Hz to 400 Hz, with selectable high-pass frequencies of 35 Hz and 50 Hz
• Maximum SPL of 136 dB, ideal for large-scale events and installations
• RDNet compatibility for remote monitoring, control, and real-time adjustments
• DSP-controlled input section with presets, delay control, and customizable low-pass filters (50 Hz to 400 Hz)
• Weatherproof Baltic birch plywood cabinet for durability in various environments
• Lightweight and stackable design for easy transport and setup
• Convenient pole mount/Cap (M20 thread) for flexible configurations
• Heavy-duty powder-coated front grille with transparent-to-sound foam backing for transducer protection
• Removable dolly caster-board with rugged tour-grade casters for easy mobility

Specifications

Acoustical specifications

• Frequency Response: 30 Hz ÷ 400 Hz
• Max SPL @ 1m: 136 dB

Transducers

• Woofer: 1 x 18" neo, 4.0" v.c

Input/Output section

• Input signal: bal/unbal
• Input connectors: XLR, RDNet Ethercon
• Output connectors: XLR, RDNet Ethercon
• Input sensitivity: +4 dBu

Processor section

• Hi-Pass Frequencies: 35 Hz, 50 Hz
• Low-Pass Frequencies: Variable from 50 Hz to 400 Hz
• Protections: Thermal, RMS
• Limiter: Fast Limiter
• Controls: Gain, Eq., Preset Switch, Output Delay
• RDNet: Yes

Power section

• Total Power: 2800 W Peak, 1400 W RMS
• Cooling: Forced
• Connections: Powercon IN/OUT

Standard compliance

• Safety agency: CE compliant

Physical specifications

• Cabinet/Case Material: Baltic birch plywood
• Hardware: 2xM20
• Handles: 2 Side
• Pole mount/Cap: M20 thread
• Grille: Steel
• Color: Black

Size / Weight

• Height: 27.56 inches
• Width: 21.97 inches
• Depth: 27.56 inches
• Weight: 125.66 lbs

Shipping information

• Package Height: 30.31 inches
• Package Width: 30.31 inches
• Package Depth: 24.8 inches
• Package Weight: 136.25 lbs