Description

LD Systems ICOA PRO SUB 21 – Professional 21-inch active subwoofer

Extreme lows, maximum pressure, and professional control

The LD Systems ICOA PRO SUB 21 is a powerful professional active subwoofer with a 21-inch woofer, developed for demanding PA applications. This subwoofer is built for situations where you don’t just want more low end, but specifically deep, powerful, and controlled bass with plenty of headroom.

The ICOA PRO SUB 21 is an ideal extension for professional PA systems and can be deployed for live music, DJs, festivals, events, rental, and larger productions.

With its large 21-inch woofer, this subwoofer is designed to provide a solid foundation beneath your top system.

🔊 21-inch woofer – serious low end

The heart of the ICOA PRO SUB 21 is a powerful:

21-inch woofer

A 21-inch driver can displace a massive amount of air.

This provides a combination of:

• Deep bass
• High sound pressure
• High headroom
• Tight kick
• Great dynamics
• High physical impact

This subwoofer truly excels in music styles such as dance, EDM, house, techno, and live music.

Professional active subwoofer

The ICOA PRO SUB 21 is a fully active system.

The amplifier is integrated into the subwoofer, eliminating the need for a separate power amp.

This keeps the setup straightforward:

mixer → subwoofer → tops

The built-in electronics are tuned to the woofer, ensuring optimal synergy between the amplifier, DSP, and speaker.

Much more than just deep bass

A good subwoofer must do more than just go low.

It must reproduce the low end in a controlled and musical way.

The ICOA PRO SUB 21 is designed to reproduce both deep sub-bass and the powerful punch of a kick drum.

This makes it suitable for both:

DJ + dance

as well as:

live bands + concerts.

🎛️ Professional DSP

The integrated DSP ensures the subwoofer can be perfectly aligned with the rest of the PA system.

The DSP can be used for features including:

• Crossover
• EQ
• Limiting
• Phase
• Delay
• System protection

This allows the SUB 21 to be accurately integrated with various top systems.

ICOA PRO SUB 21 with tops

The SUB 21 pairs excellently with professional active tops.

A powerful configuration could consist of:

2 × ICOA PRO top

1 × ICOA PRO SUB 21

For larger productions, you can expand to:

2 × top

2 × SUB 21

This provides a significantly larger low-end section and more headroom.

For DJs

For DJs who want serious low end, the ICOA PRO SUB 21 is a compelling choice.

Especially for:

• House
• EDM
• Techno
• Dance
• Hardstyle
• Festivals
• Large parties

deep bass is a vital part of the experience.

With a 21-inch woofer, you don’t just get audible lows, but the physical impact that visitors actually feel.

For live bands

The SUB 21 is also excellent for live music applications.

The subwoofer supports elements such as:

• Kick drum
• Bass guitar
• Synthesizers
• Electronic drums
• Samples

This allows the tops to handle less low end, giving them more room for vocals and instruments.

The result is a more powerful and clearer overall sound.

For events and festivals

Sufficient subwoofer capacity is crucial for larger productions.

The ICOA PRO SUB 21 can be used for:

• Festivals
• Concerts
• Dance events
• Corporate events
• Large parties
• Rental productions
• Live shows

Multiple SUB 21s can be combined when more output and low-end reserve are required.

Professional for rental

For professional rental companies, the SUB 21 is an attractive powerful addition to an existing PA inventory.

A single system can be used for medium-sized productions.

Multiple subwoofers can be deployed when a production requires more capacity.

This allows you to build different configurations with the same equipment.

Strong professional housing

A 21-inch subwoofer naturally needs to be durable.

The ICOA PRO SUB 21 is developed for professional use and features a robust construction suitable for mobile productions.

For transport and setup, a professional subwoofer is ideally paired with appropriate transport solutions and accessories.

ICOA PRO SUB 21 – who is it for?

This subwoofer is particularly interesting for:

DJs

For deep and powerful dance bass.

Bands

For extra foundation under drums and bass.

Event companies

For corporate events and large productions.

Rental

As a powerful subwoofer within a professional PA range.

Festivals

For maximum low-end pressure and headroom.

ICOA PRO SUB 21 – 18″, 21″ or multiple subs?

A 21-inch subwoofer is most effective when you want high low-end capacity from relatively few cabinets.

For smaller mobile applications, a smaller subwoofer might be more practical.

But when the goal is:

MORE LOWS + MORE PRESSURE + MORE HEADROOM

then the ICOA PRO SUB 21 truly comes into its own.