Bose RoomMatch RMS218 VLF Subwoofer Module Loudspeaker

Bose RoomMatch RMS218

Bose RoomMatch RMS218

Bose RoomMatch RMS218 VLF Subwoofer Module Loudspeaker


The RoomMatch RMS218 VLF-subwoofer is designed primarily to extend the low-frequency response of Bose RoomMatch arrays down to 25 Hz. It features dual Bose LF18 18-inch high-excursion woofers, and a V-baffle design that reduces distortion while minimizing enclosure width. The durable Baltic birch enclosure with 2-part polyurethane coating integrates with all RoomMatch modules for reliable ground-stack applications. Use the RMS218 VLF-subwoofer with RMS215 subwoofer and full-range modules to create RoomMatch 4-way systems.


Very-low-frequency subwoofer - with 30 Hz rated response (-3 dB) and 25 Hz usable response (-10 dB) for the most demanding electronic music and sound-effect program material

Dual Bose LF18 woofers 18-inch, high-excursion, 4.5-inch voice coil, neodymium-magnet transducers provide maximum performance

142 dB peak sound levels - provide balanced subwoofer performance with the largest RoomMatch array systems

V-baffle design - provides increased acoustic loading and lowers port airflow turbulence to improve sound quality, while minimizing enclosure width to allow integration with all RoomMatch modules

Recommended Bose PowerMatch PM8500 power amplifier - provides optimal power and loudspeaker DSP


Frequency range (-10 dB)

25 Hz - 250 Hz

Power management, Peak

6000 W (3000 W per woofer)

Sensitivity (SPL / 1 W @ 1 m)

96 dB

Calculated SPL maximum @ 1 m, peak

Matrix Position (free field): 134 dB


Matrix Position (free field): 136 dB

Nominal impedance

2 x 4 Ω (discrete woofer connection)


Black, can be painted


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