RCF SUB 18-AS

The RCF SUB 18-AS is a powerful active subwoofer equipped with an 18" bass driver with a 4" voice coil, suitable for small to medium-sized events. The Class D amplifier delivers a peak power of 2200 W, allowing for an acoustic pressure of up to 135 dB while maintaining dynamics and precision even at higher volumes.

The cabinet is constructed from high-quality Baltic birch plywood and features a durable polyurethane coating, ensuring resilience to rigorous handling and frequent transport. The SUB 18-AS is optimized as a low-frequency foundation for 10", 12", and 15" full-range speakers, with its integrated DSP utilizing advanced Bass Motion Control (BMC) algorithm for maximum control of cone motion and extended bass response even at higher signal levels.

On the rear panel, you will find combined inputs (XLR/TRS) for mono or stereo connection, XLR link outputs, stereo outputs post-crossover, as well as volume, polarity, and low-pass filter controls.

General Features:
• Built-in amplifier power: 1100 W RMS (Class D)
• Max SPL: 135 dB
• Frequency range: 35 Hz – 400 Hz
• 18" woofer with 4" voice coil
• BMC algorithm for extended bass response
• Robust Baltic birch plywood construction with polyurethane coating
• Combined XLR/TRS inputs (mono/stereo)
• XLR link out + stereo output post-crossover
• Volume, polarity, and low-pass filter controls
• Ideal for 10", 12", and 15" full-range speakers
• Best results achieved with RCF full-range speakers: NX 915-A, NX 912-A, NXL 24-A MK2, ART 710 A MK5, ART 712-A MK5, ART 715-A MK5, ART 732-A MK5, ART 735-A MK5, ART 745-A MK5, NX 932-A, NX 945-A MK5

Technical Specifications:
• Frequency range: 20 Hz – 400 Hz
• Max acoustic pressure (SPL) @ 1 m: 135 dB
• Driver: 1× 18" RCF low-frequency driver with 4.0" voice coil

Input and Output Section:
• Input signal: balanced / unbalanced
• Inputs: combined XLR/TRS (Combo Jack)
• Outputs: XLR (link + stereo output post-crossover)
• Input sensitivity: -2 dBu / +4 dBu

Processing:
• Protections: thermal protection
• Limiter: soft limiter
• Controls: volume, polarity switch, low-pass filter frequency
• Power Section:
• Total power: 2200 W (peak power)
• Cooling: passive (convection)
• Power connector: VDE

Power Section:
• Total power: 2200 W (peak power)
• Cooling: passive
• Power connector: VDE

Construction:
• Skeleton material: birch plywood
• Handles: 2 side handles
• Pole mount: M20
• Grille: steel
• Color: black

Dimensions and Weight:
• Height: 693 mm
• Width: 505 mm
• Depth: 685 mm
• Weight: 44.5 kg

Packaging Parameters:
• Height: 735 mm
• Width: 745 mm
• Depth: 565 mm
• Weight: 51 kg