RCF SUB 8004-AS 2500 Watt Active 18" Subwoofer With 4" Voice Coil
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Earn rewards every time you shop at AMS. You'll collect points on eligible purchases that turn into promotional savings on future gear, with points typically available several days after your order ships. All you need is a free AMS account — no credit card, financing, or payment plan required.
The more you shop, the more you earn. Create a free account and start earning from your very first eligible purchase. Rewards are applied as a discount on future eligible purchases.
Earn points on eligible purchases with AMS Rewards and turn them into savings on future orders, no credit card required. You can apply points at checkout once they’re available.
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0% Interest
Payment Plan
Don’t sell your soul to a creditor to get the gear you need. At AMS, we want to lower the barriers to create. That’s why we offer in-house 0% financing, and you don’t even have to open a new line of credit! Spread out payments on your credit card to simplify financing and avoid hefty late fees or service charges. Cost shouldn’t interfere with your creativity.
The RCF SUB 8004-AS is a high-performance subwoofer engineered for audio professionals who need serious low-end reinforcement. Delivering a massive 2500 watts of peak power in a tour-grade enclosure, this 18-inch sub is designed to anchor your sound system with authority. It combines high-output capabilities with precise DSP control, making it a versatile choice for anyone.
Uncompromising Power and Efficiency
At the heart of the SUB 8004-AS is a commitment to moving air efficiently and effectively. This subwoofer doesn't just add volume; it adds physical weight to your mix, ensuring that the low frequencies are felt as much as they are heard.
High-Power 18-Inch Woofer: Equipped with an 18-inch woofer and a 4-inch inside/outside voice coil, this driver minimizes power compression and maximizes longevity even during extended high-output use.
2500-Watt Peak Power: The onboard digital amplifier module delivers 1250 watts RMS and 2500 watts peak, providing the headroom necessary to reproduce dynamic bass transients without distortion.
136 dB Max SPL: Capable of generating substantial sound pressure levels, this sub ensures your low-end remains present and punchy, easily filling medium to large venues.
Advanced DSP for Precise Control
Power is most effective when it’s controlled, and the SUB 8004-AS offers a comprehensive suite of DSP tools to tailor the sound to your specific environment. The rear panel provides intuitive access to settings that help integrate the sub seamlessly with the rest of your PA system.
Versatile Input Board: The input section includes essential controls such as volume, a deep/punch switch to tailor the bass character to the genre, and a high pass switch for satellite integration.
Cardioid and Phase Options: Dedicated switches allow for easy cardioid configuration and phase alignment, helping you manage low-frequency dispersion and avoid cancellation issues on stage.
Integrated Time Delay: The built-in delay control ensures perfect time alignment with your top boxes, resulting in a coherent and unified wavefront for the audience.
Road-Tested Reliability
Built to withstand the rigors of the road, the SUB 8004-AS is housed in a rugged cabinet designed for daily professional use. It’s engineered not just for durability, but also for flexibility in system configuration and stacking.
Baltic Birch Cabinet: The tour-grade Baltic birch enclosure is finished with a heavy-duty coating, offering superior protection against bumps, scratches, and the stresses of transport.
Stacking Compatibility: Designed to work hand-in-hand with RCF's NXL23-A and NXL24-A systems, the cabinet allows for secure and easy stacking configurations.
Hypervented Design: The enclosure design promotes efficient airflow to keep the voice coils cool, ensuring consistent performance night after night in demanding thermal conditions.
A Foundation for Professional Sound
The RCF SUB 8004-AS delivers a powerful, reliable low-frequency foundation for professionals who need both performance and control. Whether for a permanent installation or a touring setup, this subwoofer ensures deep, consistent bass to support your mix.
RCF SUB 8004-AS Features:
2500-Watt Peak / 1250-Watt RMS digital amplifier
136 dB max SPL for high-output performance
18-inch woofer with 4.0-inch voice coil
30 Hz - 120 Hz frequency response
Baltic birch tour-grade cabinet construction
DSP-controlled input section with selectable presets
Deep/Punch, High Pass, Phase, and Cardioid switches