Add to Cart Quick view PreSonus PreSonus StudioLive 18sAI 18-inch Active Subwoofer w/Active Integration Technology $1,399.95 Although the StudioLive 18sAI is flexible enough to work great with other powered loudspeakers, when used with a StudioLive 312AI, 315AI, or 328AI, the StudioLive 18sAI forms a true four-way system... $1,399.95 Add to Cart Quick view
