What is the driver size of the Yamaha CXS18 MK3?

The subwoofer features a large 18-inch driver, which is standard for professional-grade low-frequency reinforcement.

Does this subwoofer require an external amplifier?

Yes, the CXS18 MK3 is a passive subwoofer. It does not have built-in amplification and must be powered by a compatible external power amplifier.

What is the voice coil diameter?

The 18-inch driver is equipped with a 4-inch voice coil, designed to handle high capacity and maintain control during operation.

What type of enclosure does the CXS18 MK3 use?

It utilises a band-pass enclosure design. This design is chosen to provide a balance of deep bass extension and high output efficiency.

What is the lowest frequency this unit can reach?

The frequency response extends down to 35 Hz in standard operation. In 'extended mode,' it can reach as low as 32 Hz.

What material is the cabinet made from?

The cabinet is constructed from solid plywood. This provides better structural integrity and acoustic properties than many synthetic materials.

How is the exterior of the cabinet protected?

The plywood enclosure is finished in a durable polyurea coating. This coating is specifically designed to protect against scratches, impacts, and weather during transport.

Is this subwoofer suitable for permanent installations?

Yes, it is designed for both demanding live sound and fixed installation environments. Its mounting options and solid construction make it highly adaptable for venue installs.

What kind of systems is the CXS18 MK3 typically paired with?

It is designed to be integrated into professional PA systems. It often works alongside high-output full-range speakers such as those from RCF, Turbosound, or Yamaha's own lines.

How does it compare to the QSC KLA181?

The QSC KLA181 is an active subwoofer with built-in power, whereas the Yamaha CXS18 MK3 is passive. The Yamaha requires external power but offers different enclosure tuning via its band-pass design.

What is the typical price range for this model?

The typical price for the Yamaha CXS18 MK3 is approximately GBP 1349. Prices may vary slightly depending on the retailer and current availability.

Who is the primary target user for this subwoofer?

It is aimed at professional sound providers, touring companies, and venues that require high-capacity, reliable low-frequency support for music and large events.

Gear article

Yamaha CXS18 MK3 18" Passive PA Subwoofer

The Yamaha CXS18 MK3 is a high-capacity passive subwoofer designed for professional sound reinforcement in both live and fixed installation environments. It features a large 18-inch driver housed in a durable band-pass enclosure to deliver deep, controlled low-frequency output.

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Overview

The Yamaha CXS18 MK3 represents a significant component in Yamaha's professional audio lineup, specifically designed for users who require high-output low-frequency reinforcement. As a passive unit, it lacks internal amplification, necessitating an external power amplifier and crossover system. It is engineered to provide the foundation for large-scale PA setups, offering a robust solution for touring and permanent installs.

Design and Construction

The CXS18 MK3 is built using a solid plywood cabinet, which is widely preferred in professional audio for its resonance-damping properties compared to plastic alternatives. The exterior is finished with a durable polyurea coating, designed to withstand the rigours of transport and heavy use. A key design feature is its band-pass enclosure, which helps to increase efficiency and control within its specific frequency range. The unit features an 18-inch driver equipped with a 4-inch voice coil, providing the mechanical strength needed to handle high power levels without distortion.

Performance and Sound Character

In terms of sonic performance, the CXS18 MK3 focuses on delivering strong, controlled bass. The standard frequency response extends down to 35 Hz, while an 'extended mode' allows the unit to reach as low as 32 Hz for applications requiring significant sub-bass presence. The sound character is defined by its ability to remain tight and impactful, making it suitable for electronic music, live percussion, and event applications where low-end clarity is essential.

Application and Comparison

This subwoofer is best suited for professional sound engineers and venue owners who already utilise external amplification racks. Compared to active alternatives like the QSC KLA181, the CXS18 MK3 offers more flexibility in system tuning but requires more complex setup. While smaller units like the AVCOM 8" Active Subwoofer are designed for domestic or small-scale use, the CXS18 MK3 is intended for high-demand environments alongside full-range speakers such as the RCF ART 735-A MK5 or the Turbosound iQ10.

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Frequently asked questions

What is the driver size of the Yamaha CXS18 MK3?: The subwoofer features a large 18-inch driver, which is standard for professional-grade low-frequency reinforcement.
Does this subwoofer require an external amplifier?: Yes, the CXS18 MK3 is a passive subwoofer. It does not have built-in amplification and must be powered by a compatible external power amplifier.
What is the voice coil diameter?: The 18-inch driver is equipped with a 4-inch voice coil, designed to handle high capacity and maintain control during operation.
What type of enclosure does the CXS18 MK3 use?: It utilises a band-pass enclosure design. This design is chosen to provide a balance of deep bass extension and high output efficiency.
What is the lowest frequency this unit can reach?: The frequency response extends down to 35 Hz in standard operation. In 'extended mode,' it can reach as low as 32 Hz.
What material is the cabinet made from?: The cabinet is constructed from solid plywood. This provides better structural integrity and acoustic properties than many synthetic materials.
How is the exterior of the cabinet protected?: The plywood enclosure is finished in a durable polyurea coating. This coating is specifically designed to protect against scratches, impacts, and weather during transport.
Is this subwoofer suitable for permanent installations?: Yes, it is designed for both demanding live sound and fixed installation environments. Its mounting options and solid construction make it highly adaptable for venue installs.
What kind of systems is the CXS18 MK3 typically paired with?: It is designed to be integrated into professional PA systems. It often works alongside high-output full-range speakers such as those from RCF, Turbosound, or Yamaha's own lines.
How does it compare to the QSC KLA181?: The QSC KLA181 is an active subwoofer with built-in power, whereas the Yamaha CXS18 MK3 is passive. The Yamaha requires external power but offers different enclosure tuning via its band-pass design.
What is the typical price range for this model?: The typical price for the Yamaha CXS18 MK3 is approximately GBP 1349. Prices may vary slightly depending on the retailer and current availability.
Who is the primary target user for this subwoofer?: It is aimed at professional sound providers, touring companies, and venues that require high-capacity, reliable low-frequency support for music and large events.