Mackie DRM18S 18" Powered Subwoofer tremolo The power pack and 3

The power pack and 3 batteries are included in the delivery

while the active Phat II bass boost adds additional girth to your sound

Powder-coated steel zipper pulls with self-healing nylon zippers are standard on all compartments

reliable operation under all conditions

complete with boom arm

Mackie DRM18S 18" Powered Subwoofer tremolo The power pack and 3The Mackie DRM218S is a 2000W 18" powered subwoofer designed for medium sized theaters to large music venues as well as DJs, clubs, houses of worship, and rental systems. The integrated Class D amplifier utilizes professional quality protection and Power Factor Correction (PFC) technology to ensure peak performance, while the Advanced Impulse DSP provides acoustic correction and time alignment via precision tuned FIR filters for a clear, punchy sound.