RCF SUB 18-AX, 18" Powered Sub | professional event production equipment, UpLight Technologies

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SUB 18-AX

18" Powered Sub

The SUB 18-AX is a portable 18" high power active subwoofer for live sound applications with fully featured processing, a color touch panel, and remote control via Bluetooth®. The combination of a latest generation transducer with a powerful Class-D amplifier delivers sound pressure levels up to 135 dB with exceptional clarity and headroom. SUB AX subwoofers are designed specifically for small to mid sized venues and ideal for portable applications. SUB 18-AX is the ideal complement for 10", 12” or 15" woofer size loudspeakers; it centralizes speaker management inside the subwoofer, providing dual crossovers, 8-band EQs, routing, delays, cardioid configurations, and recallable crossover presets. The polyurea coated all wood cabinet features a sealed Powercon True1 Top connector.

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RCF

Key Features

  • 2200 Watt Class-D Amplifier

  • 135 dB MAX SPL

  • 18” Woofer, bass reflex housing

  • Digital Crossover w/ Presets

  • Multi ply hardwood polyurea coated

  • LiveRemote App

  • Dual XLR/TRS combo Input + Link, Dual XLR Xover Out

  • Bass Motion Control excursion management

  • Powercon True1 Top Sealed AC Connector

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Office

165 Jones Blvd. Suite A

La Vergne, TN 37086

United States

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Built On Values.

FOCUSED ON IMPACT.

Concert stage with red and blue LED lighting and video walls by UpLight Technologies

LET'S BUILD

SOMETHING

POWERFUL.

Reach out to discover how UpLight

can support your production goals and

bring your vision to life.

Office

165 Jones Blvd. Suite A

La Vergne, TN 37086

United States

By submitting, you agree to our Terms and Privacy Policy.

Built On Values.

FOCUSED ON IMPACT.

Concert stage with red and blue LED lighting and video walls by UpLight Technologies

- GET IN TOUCH

LET'S BUILD

SOMETHING

POWERFUL.

Reach out to discover how UpLight

can support your production goals and

bring your vision to life.

Office

165 Jones Blvd. Suite A

La Vergne, TN 37086

United States

By submitting, you agree to our Terms and Privacy Policy.

Built On Values.

FOCUSED ON IMPACT.

Stay connected

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© 2026 UpLight Technologies LLC®. All rights reserved.

UpLight Technologies LLC® is a company registered in the United States.

Stay connected

//

Join us for updates on live event production, behind the scenes stories, and industry insights.

By submitting, you agree to our Terms and Privacy Policy.

Need gear?

We rent lighting fixtures, consoles, PA, RF mics, and more. Contact us with your needs.

View Inventory

© 2026 UpLight Technologies LLC®. All rights reserved.

Stay connected

//

Join us for updates on live event production, behind the scenes stories, and industry insights.

By submitting, you agree to our Terms and Privacy Policy.

Need gear?

We rent lighting fixtures, consoles, PA, RF mics, and more. Contact us with your needs.

View Inventory

© 2026 UpLight Technologies LLC®. All rights reserved.

UpLight Technologies LLC® is a company registered in the United States.