Product Information

StudioLive 18SAI- 18" Active Subwoofer. 1,000-watt, 18" Powered Subwoofer with DSP, Wireless Networking, Stereo Inputs, and Pole Inserts.

The PreSonus StudioLive 18sAI Active Integration subwoofer is an 18" powered sub optimized for use with PreSonus's 312AI, 315AI, or 328AI full-range PA loudspeakers. Any of those configurations will give you a true 4-way system with studio-monitor-grade accuracy, tightly extended low end, and jaw-dropping dynamic capabilities. Packing 1000 watts of power, the 18sAI sports 32-bit, 96kHz DSP, variable alignment delay, and wired or wireless remote control of all setup, tuning, and monitoring functions from your iPad or laptop. The PreSonus StudioLive 18sAI is one smart sub.


  • 18" Powered Sub delivers tight, extended bass with studio-monitor accuracy
  • Driven by 1000W of Class D amplification
  • Use with StudioLive 312AI, 315AI, or 328AI, for a true 4-way system
  • Active Integration 32-bit, 96kHz DSP
  • Wired or wireless remote control of all setup, tuning, and monitoring functions via iPad or laptop
  • Stereo line inputs (XLR/TRS combo) and switchable stereo/summed-mono line outputs (XLR)
  • Alignment delay lets you place sub in different positions relative to full-range speakers

Get studio-monitor quality - live - with the PreSonus StudioLive 18sAI

Tech Specs

Powered/Unpowered Powered
Power Configuration Stereo, bridgeable
LF Driver Size 18"
Total Power 1000W
Frequency Range 29Hz-141Hz (-10 dB)
Maximum Peak SPL 135dB
Enclosure Material 15mm Baltic birch
Mounting Options Floor Only, (optional mountable Sub Dolly and pull-tested Sub Pole to mount a full-range system atop)
Inputs 2 x XLR/TRS combo
Outputs 2 x XLR
Height 58.42 cm
Width 66.94 cm
Depth 60.96 cm
Weight 42.64 kg
Current Stock:
Weight 42.64 kg
Weight: 42.64 KGS
Width: 66.94
Height: 58.42
Depth: 60.96

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