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RCF SUB18-AS Portable 18" Active Subwoofer for Live Sound

RCF SUB18-AS Portable 18" Active Subwoofer for Live Sound

SoundPro Item: 143278 | Part Number: SUB18-AS

Regular price $2,299.00
Regular price $3,199.00 Sale price $2,299.00
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MSRP: $3,199.00 | MAP: $2,299.00

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  • Bass Motion Control Algorithm Extends Low-End Response At Any Drive Level
  • Onboard Soft Limiter Protects The Transducer During High-SPL Operation
  • XLR Stereo Crossover Outputs Eliminate Need For External Signal Processing
  • Rear-Panel Volume, Polarity, And Low-Pass Controls Simplify On-Site Setup
  • Polyurea-Coated Baltic Birch Cabinet Withstands Repeated Load-In And Load-Out
  • Convection Cooling Operates Without Fan Noise In Quiet Venue Environments
  • M20 Pole-Mount Thread And Dual Side Handles Provide Flexible Deployment Options

The RCF SUB18-AS is built for sound engineers and production companies running portable live sound systems in small to mid-sized venues. Its 2200-watt Class-D amplifier drives an 18" woofer to a peak output of 135 dB SPL, providing the low-end headroom needed for music playback, corporate events, club installs, and touring packages where a single subwoofer must anchor the entire system.

The SUB18-AS is designed to integrate directly with 10", 12", or 15" full-range loudspeakers. Stereo XLR crossover outputs route the high-pass signal to tops without requiring an external processor, and the Bass Motion Control algorithm extends usable bass response at all drive levels without sacrificing reliability. The rear panel puts volume, polarity, and low-pass frequency selection within reach during setup, reducing dependency on a separate system controller.

The Baltic birch plywood cabinet with polyurea coating withstands the rigors of repeated load-in and load-out. Two side handles and an M20 pole-mount thread give crews multiple deployment options, whether ground-stacked or flown on a pole above a satellite speaker. For engineers choosing between this and competing 18" powered subs, the combination of onboard DSP controls, convection cooling, and a road-grade cabinet makes the SUB18-AS a practical choice where simplicity and output consistency matter most.

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Specifications

Audio
Frequency Response
35 Hz - 400 Hz
Max SPL @ 1m
135 dB
Input Sensitivity
-2 dBu/+4 dBu
Transducers
Woofer
1 x 18", 4.0" voice coil
Power
Total Power
2200 W Peak
Cooling
Convection
Power Connections
VDE
Connectivity
Input Signal
Balanced/Unbalanced
Input Connectors
Combo XLR/Jack
Output Connectors
XLR
Controls
Rear Panel Controls
Volume, Polarity, Low Pass Filter Frequency
Protections
Thermal
Limiter
Soft Limiter
Construction
Cabinet Material
Baltic birch plywood
Finish
Polyurea coating
Grille
Steel
Color
Black
Handles
2 side
Pole Mount
M20 thread
Certifications
Safety Agency
CE compliant
Dimensions
Height
27.28"
Width
19.88"
Depth
26.97"
Weight
Unit Weight
98.11 lbs
Shipping
Package Height
28.94"
Package Width
29.33"
Package Depth
22.24"
Package Weight
112.44 lbs

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