PreSonus StudioLive 18sAI Studio Subwoofer (Discontinued) Leave a Comment / Uncategorized / By Alexander / January 11, 2017 81 GEARANK 81 out of 100. Incorporating 5+ ratings and reviews. Street Price: $1399.95 Manufacturer: PreSonus Features: 18″ Powered Subwoofer Active Integration with 32-bit 96kHz DSP Wired/Wireless Remote Control Setup Stereo Line Inputs Related Reading: The Best Studio Monitor Subwoofers Best Studio Monitors – Under $200 up to $500 Extensive Home Recording Studio Equipment List