Yamaha DXS18MK3 18" Active Subwoofer

Yamaha DXS18MK3 Powered Subwoofer
The Yamaha DXS18 MK3 is the flagship model of Yamaha's latest generation of DXS series powered subwoofers — the largest and most powerful in the lineup. Built to deliver deep, clear, and remarkably powerful ultra-low bass, it combines proprietary high-durability transducers with a redesigned high-efficiency power amplifier and an ideal bandpass cabinet structure that eliminates unwanted cabinet noise. When paired with Yamaha's perfectly matched DXR MK3 series loudspeakers, the DXS18 MK3 enables users to build a seamlessly integrated sound system with unparalleled impact, making it a natural centerpiece for professional live sound setups.

Engineered for exceptional bass performance
At the heart of the DXS18 MK3 is an 18-inch cone driver featuring a 4-inch voice coil, engineered as a proprietary high-durability speaker unit built to withstand the demands of professional use. This woofer sits within an acoustically optimized bandpass cabinet constructed from plywood — a material chosen for both its physical resilience and its contribution to superior acoustic performance. The result is a subwoofer capable of reaching a maximum SPL of 134 dB, delivering bass output that is as physically impactful as it is sonically refined. The cabinet design works in direct harmony with the driver to suppress resonances and unwanted noise, ensuring that what the audience hears is clean, controlled low-end energy.
Powerful amplification and extended frequency response
The DXS18 MK3 is driven by a newly developed 2500 W Class-D amplifier, redesigned for high efficiency without sacrificing raw output. This amplifier topology keeps heat and power consumption in check while delivering the sustained headroom that demanding live applications require. Complementing the amplifier is the built-in D-XSUB processing, which extends the usable frequency response even lower — down to 32 Hz — well beyond what a standard subwoofer cabinet would naturally reproduce. This capability allows engineers to fill out the very bottom of the frequency spectrum, giving music, speech, and effects a sense of weight and presence that audiences feel as much as they hear.
Flexible DSP and versatile installation options
The DXS18 MK3 offers a high degree of control through its extremely flexible X-OVER settings, managed via onboard DSP. These tools allow system engineers to precisely integrate the subwoofer within any loudspeaker configuration, optimizing crossover points to suit the room and application. A dedicated Cardioid mode provides sophisticated bass management for stage monitoring scenarios, allowing low-frequency energy to be directed toward the audience while reducing unwanted bass buildup on stage. Physically, the cabinet is equipped with both M20 and Ø35 mm dual pole sockets to accommodate a wide range of rigging and pole-mounting setups. For touring and mobile applications, optional Speaker Wheels (SPW-1) and a Speaker Cover (SPCVR-DXS183) are available separately to simplify transport and protection.
Why We Love This
Our gear experts appreciate the DXS18 MK3 because it delivers bass they can feel as well as hear — a physical, visceral low-end that energizes a performance and connects with an audience. The Cardioid mode gives performers cleaner stage conditions by controlling bass spill, while seamless integration with DXR MK3 loudspeakers means the whole system works as one cohesive unit. Its durability, consistent output at 134 dB, and deep extension to 32 Hz make it a reliable partner night after night.
Features:
- 18" cone with 4" voice coil proprietary high-durability speaker unit
- Newly developed 2500 W Class-D amplifier
- Maximum 134 dB SPL output
- Ideal bandpass cabinet design for superior bass response
- Built-in D-XSUB processing extending frequency response down to 32 Hz
- Extremely flexible X-OVER settings via onboard DSP
- Cardioid mode for stage bass management
- Acoustically optimized plywood cabinet construction
- M20 and Ø35 mm dual pole sockets for versatile mounting
- Compatible with optional SPW-1 Speaker Wheels and SPCVR-DXS183 Speaker Cover