RCF SUB 9004AS | 18in - 136 dB Active Subwoofer | 2800W with RDNet Control & DSP

RCF SUB 9004AS | 18in - 136 dB Active Subwoofer | 2800W with RDNet Control & DSP

$5,999.00

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Active Touring Subwoofer

RCF SUB 9004-AS is a high-power 18" active subwoofer designed for demanding touring applications and professional sound reinforcement. Equipped with a hyper-vented neodymium transducer, 2800W Class-D amplifier, and advanced RDNet remote control, it delivers exceptional low-frequency clarity, high SPL, and system flexibility.

RCF SUB 9004-AS Competitive Differences

2800W peak / 1400W RMS amplifier with 136 dB max SPL
RDNet network control, onboard DSP, and delay settings

RCF SUB 9004-AS Description

The RCF SUB 9004-AS is purpose-built for concert-level sub-bass performance in live touring and rental environments. At its core is a custom 18" hyper-vented neodymium woofer featuring a 4" inside/outside voice coil and a composite cone made of carbon fiber, fiberglass, and cellulose—engineered for maximum rigidity and minimal distortion.

The onboard 2800W Class-D amplifier delivers deep and punchy bass from 30 Hz to 400 Hz, while a 32-bit DSP provides precise control over crossover points, limiter behavior, EQ, and delay. All settings can be accessed remotely via RDNet for real-time system tuning, monitoring, and integration with larger RCF arrays and full-range systems.

The rugged Baltic birch plywood cabinet is finished with weather-resistant treatment and includes M20 pole mounts on the top and side for flexible deployment. Built-in handles and compatibility with the optional kart dolly system simplify transport and stacking. Whether you're flying subs for large events or stacking them for mobile gigs, the SUB 9004-AS offers maximum performance and control in a road-ready format.

Model Features

2800W peak / 1400W RMS Class-D amplifier
18" neodymium woofer with 4.0" voice coil and hyper-ventilation
136 dB max SPL and extended low-frequency response (30 Hz)
Onboard DSP with selectable crossover points and delay
Fully RDNet compatible for remote system control
Low noise 32-bit DSP with input gain, EQ, and presets
Rugged Baltic birch cabinet with weatherproof finish
Dual M20 threaded pole mounts and side handles

Model Specifications

Max SPL: 136 dB
Power Output: 2800W Peak / 1400W RMS
Frequency Response: 30 Hz – 400 Hz
Woofer: 18" neodymium with 4.0" voice coil
Hi-Pass Frequencies: 35 Hz, 50 Hz
Low-Pass Frequencies: Variable from 50 Hz to 400 Hz
Input Connectors: XLR, RDNet Ethercon
Output Connectors: XLR, RDNet Ethercon
Power Connections: PowerCON IN/OUT
Cabinet: Baltic birch plywood, black finish
Dimensions: 27.56 x 21.97 x 27.56 in (700 x 558 x 700 mm)
Weight: 125.66 lb (57 kg)

What's In The Box

RCF SUB 9004-AS Subwoofer
Power cable
User manual

Shipping

Orders ship from our northern NJ warehouse the same day if ordered by 3:30PM EST. Transit time ETA's are listed in the image below:

Return Policies

All orders come with our industry leading 90-Day return policy.

Cash Back or Store Credit available for returns within 30 days.
Store Credit available for returns within 31-90 days.

Restocking fees

Unopened Items: 5%
Opened but Mint Condition: 15%
Blemished, Missing/Damaged Packing or Accessories: 25%

Shipping Costs

Buyer is responsible for return shipping costs
If "Free" or discount shipping was provided with original order, our actual shipping cost will be deducted from the amount refunded/credited

Damages & Defects

We will swap any item reported as damaged or defective within 7 days of delivery for free. All transportation and replacement costs will be covered by us (within US48 states).