Yamaha DXS18 MK3 | 18in Powered Subwoofer - 134dB SPL | High-Output Bass with DSP and Cardioid Mode

Yamaha DXS18 MK3  (Yamaha DXS18MKIII)

Powered Subwoofer

Yamaha DXS18 MK3 is a band-pass powered subwoofer designed to deliver deep, controlled low-frequency reinforcement for professional sound systems. As the largest model in the DXS mk3 series, it combines high output, extended low-end performance, advanced DSP processing, and a durable plywood enclosure for demanding live sound, DJ, and installed audio applications.

Yamaha DXS18 MK3 Competitive Differences

• 2500W Class-D amplifier with an 18-inch woofer and band-pass cabinet design delivering up to 134 dB SPL
• Advanced DSP features including D-XSUB processing, cardioid mode support, Bluetooth connectivity, and flexible crossover control

Yamaha DXS18 MK3 Description

The Yamaha DXS18 MK3 is built for users who need maximum low-frequency extension and output from a single powered subwoofer. Its 18-inch long-excursion woofer with a 4-inch voice coil is paired with an optimized band-pass enclosure that helps reduce unwanted port and cabinet noise while delivering strong, clear, and impactful bass. This makes it a strong choice for mobile DJs, live bands, event production, houses of worship, and venues that demand substantial low-end performance.

Powered by a newly developed 2500W Class-D amplifier, the DXS18 MK3 produces up to 134 dB SPL and reaches down to 32 Hz in XTENDED LF mode. Yamaha’s D-XSUB processing gives users practical control over bass response, with NORMAL mode providing balanced low-end performance and XTENDED LF mode extending the subwoofer’s range for applications that benefit from deeper bass reproduction.

The enclosure is constructed from durable plywood and finished with a rugged polyurea coating for long-term reliability during transport, setup, and daily use. Its acoustically optimized cabinet design, large ports, and grille structure help minimize airflow noise while maintaining powerful bass output. Dual side handles, optional SPW-1 wheels, and the optional SPCVR-DXS183 cover help make transport and protection more manageable for production and touring use.

For greater system flexibility, the subwoofer includes adjustable crossover settings, cardioid mode for improved bass management on stage, and Bluetooth support for Yamaha’s D-Remote app. When paired with DXR mk3 series full-range loudspeakers, the Yamaha DXS18 MK3 helps create a cohesive, high-impact sound system with powerful and controlled low-frequency performance.

DXS18 MK3 Features

• Powered band-pass subwoofer design
• 18-inch long-excursion woofer with 4-inch voice coil
• 2500W peak Class-D amplifier
• 1250W RMS power output
• Maximum output level of 134 dB SPL
• D-XSUB processing with NORMAL and XTENDED LF modes
• Extended low-frequency response down to 32 Hz
• Cardioid mode capability for directional bass control with multiple units
• 96 kHz internal DSP processing
• Flexible crossover settings with HPF adjustment
• Bluetooth 5.0 connectivity with SBC and AAC support
• D-Remote app support for iOS and Android devices
• Rear LCD panel with encoder for setup and control
• Durable plywood cabinet with polyurea coating
• Dual pole sockets with 35 mm and M20 threaded support
• Optional SPW-1 caster kit for easier transport
• Optional SPCVR-DXS183 protective cover

DXS18 MK3 Specifications

• Speaker Type: Powered subwoofer, band-pass
• Frequency Range (-10 dB): 32 Hz - 120 Hz
• Maximum Output Level: 134 dB SPL
• LF Driver: 18 in cone, 4 in voice coil
• Amplifier Class: Class-D
• Power Output (Peak): 2500W
• Power Output (RMS): 1250W
• Cooling: Fan cooling, 5 speeds
• Power Consumption: 130W (1/8 power), 40W (idle)
• Power Requirements: 100V - 240V, 50/60 Hz
• A/D D/A Conversion: 32-bit / 96 kHz sampling
• Processors: HPF OFF, 50 Hz - 118 Hz, 12 dB - 48 dB/Oct.; D-XSUB: NORMAL, XTENDED LF
• Analog Inputs: INPUT 1 & 2 Combo, 20 kΩ balanced / 10 kΩ unbalanced, max input +24 dBu
• Analog Outputs: OUTPUT 1 & 2 XLR3-32 THRU or DSP OUT
• Bluetooth: Version 5.0, A2DP, SBC/AAC, Class 1
• Other Control: D-Remote app support for iOS and Android
• Cabinet Material: Plywood
• Finish: Durable polyurea painting, black
• Handles: Side x2
• Pole Socket: 35 mm (depth 80 mm), M20 threaded (depth 25 mm)
• Dimensions: 22.2 x 26.9 x 28.4 in (563 x 683 x 721 mm)
• Weight: 112.4 lb (51.0 kg)
• Optional Accessories: SPW-1 caster kit, SPCVR-DXS183 cover