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Based on price data from 2 merchants for "RCF SUB 8003-AS II 18" Powered Loudspeaker". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Unleash the power of pristine bass with the RCF SUB 8003-AS II 18" Powered Loudspeaker, meticulously crafted to elevate your live sound experience. Engineered in Italy, this subwoofer is a masterclass in audio excellence, providing the deep, resonant lows that every performer dreams of. At the heart of this beast is a Class D digital amplifier that delivers 1,100 RMS watts and peaks at 2,200 watts, ensuring that your sound cuts through the noise with unparalleled clarity and punch.

The SUB 8003-AS II's 18" neodymium woofer, housed in a bass reflex cabinet, delivers tight and authoritative bass down to 35Hz, making it a perfect companion for venues ranging from intimate clubs to expansive outdoor events. Its integrated DSP and user-friendly LCD display allow for seamless navigation between presets, giving you the flexibility to fine-tune your sound for music, live performances, or speech.

Built to withstand the rigors of the road, the SUB 8003-AS II features a robust polypropylene cabinet and durable steel grille. Transporting is a breeze thanks to its ergonomic side handles and robust casters. Whether you're a touring musician, a mobile DJ, or a sound engineer, this subwoofer provides the reliability and sound quality you need to keep your audience engaged.

Key Features:

  • 1,100 RMS (2,200W peak) Class D digital amplifier
  • 18" neodymium woofer in a bass reflex cabinet
  • Frequency response down to 35Hz
  • Integrated DSP with LCD display for easy control
  • Multiple presets and customizable 5-band EQ
  • Durable polypropylene cabinet and steel grille
  • Ergonomic side handles and casters for portability
  • Comes with a padded cover for protection during transit and storage

Product specs

Brand RCF
Model SUB 8003-AS II 18" Powered Loudspeaker
Year 2022 - 2025
Categories Powered Speakers

FAQs

What is the power output of the RCF SUB 8003-AS II?

The RCF SUB 8003-AS II features Class-D amplification with 1,100W RMS and 2,200W peak output, providing robust performance for live sound applications.

Does the RCF SUB 8003-AS II have built-in DSP?

Yes, the RCF SUB 8003-AS II includes built-in DSP with selectable presets, allowing for customizable sound tailoring to suit different environments and applications.

What size is the woofer in the RCF SUB 8003-AS II?

The RCF SUB 8003-AS II is equipped with an 18" high-power woofer, designed to deliver deep bass and high sound pressure levels.

Are there user-selectable crossover presets available in the RCF SUB 8003-AS II?

Yes, the RCF SUB 8003-AS II offers user-selectable crossover presets, enabling seamless integration with other speakers in your sound system.

Is the RCF SUB 8003-AS II suitable for live performance settings?

Absolutely, the RCF SUB 8003-AS II is designed for high SPL with a bass-reflex design, making it ideal for live performances and large venues.

Sweet Tree Productions

Sweet Tree Productions

RCF SUB 8003-ASII Active Subwoofer (Authorized Dealers)

Video thumbnail for RCF SUB 8003-ASII Active Subwoofer (Authorized Dealers) by Sweet Tree Productions

RCF SUB 8003-ASII Active Subwoofer (Authorized Dealers)

Sweet Tree Productions

Sweet Tree Productions

Video thumbnail for RCF TT25A II and RCF SUB8003AS II LOUD Soundcheck 4.4KW by Dobix @ Ideal Sound

RCF TT25A II and RCF SUB8003AS II LOUD Soundcheck 4.4KW

Dobix @ Ideal Sound

Dobix @ Ideal Sound

Video thumbnail for RCF SUB 8003-AS II by Rosal Diolola

RCF SUB 8003-AS II

Rosal Diolola

Rosal Diolola

Reviews

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about RCF SUB 8003-AS II 18" Powered Loudspeaker.

Use cases and applications

  • The 8008 is recommended for long sine basses, whereas the 8004 is preferred for live sound due to its punchier response.

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Comparisons

  • The Sub AX 18 is noted to share similarities with the 8003 but includes a built-in mixer and Bluetooth, offering more functionality.

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  • The 8008 model, essentially a double 8003 in one enclosure, is critiqued for lacking output, suggesting better value options like the KS118 for similar or less cost.

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  • The 8008 has been noted to deliver a warmer sound suitable for genres like hip-hop and trap, while the 8004 excels in power and fast response for EDM, rock, and pop.

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  • The RCF SUB 8004 is described as road-ready and professional, offering more output than the 8003, though heavier and less portable.

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  • Users find the RCF SUB 8003-AS II has less output compared to the QSC KW181 and JBL SRX series within the prosumer price range.

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Setup and maintenance

  • Users report significant improvements using pre-alignment delays downloadable from the RCF website; this setup tweak is recommended for enhanced performance.

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  • The 8003's pre-alignment delay settings vary: 8ms for MK2 and 6.3ms for MK3, crucial for proper tops and subs synchronization.

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User experience

  • Owners find using the 8003 with the RCF Art932 setup delivers clean sound, with reports of satisfaction using just one sub for DJ setups in small venues.

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  • Owners report that the 8004 can be optimized by setting it to punchy mode and maximizing sensitivity for powerful output without peaking.

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  • The 8003's protection lights can be misleading, often suggesting limiting before the sub actually reaches its output capacity.

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  • Owners report that RCF subs, like the 8003, are best driven with higher input levels for optimal performance.

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Features and functionality

  • The RCF 8003 offers multiple crossover presets, including extended low and hard presets, with frequency ranges from 30 Hz to 125 Hz for versatile sound shaping.

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  • The 8004 has a narrow-band tuning optimized around 60 Hz, providing a distinct advantage in specific frequency ranges.

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  • The RCF SUB 8003-AS II employs a soft limiting system, where limiter lights activate early, causing misconceptions about its output capabilities.

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  • The RCF SUB 8003-AS II's acoustic design focuses on sound quality over maximum volume, differing from subs using 2-ohm drivers for louder output.

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Build quality

  • Some RCF products, including the 8003 and 8008, are now manufactured in China, which has been linked to differing build quality compared to Italian-made models like the 8004.

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