PreSonus StudioLive 18sAI 1000W 18" Powered Subwoofer

1,000-watt, 18" Powered Subwoofer with DSP, Wireless Networking, Stereo Inputs, and Pole Inserts
PreSonus StudioLive 18sAI 1000W 18
PreSonus StudioLive 18sAI 1000W 18
Sweetwater Savings: $200.00 MSRP: $1,599.95
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PreSonus StudioLive 18sAI 1000W 18" Powered Subwoofer
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A Sub That Delivers Studio-monitor Quality

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.

PreSonus StudioLive 18sAI Powered PA Subwoofer Features at a Glance:
  • 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

Additional Media

PA Speaker Buying Guide
Take Control Over StudioLive AI-series Loudspeakers
PreSonus and L'Angelus at Sweetwater

Tech Specs

Powered/Unpowered Powered
Power Configuration Stereo, Bridgeable
LF Driver Size 1 x 18"
Total Power 1000W
Inputs 2 x XLR/TRS Combo
Outputs 2 x XLR
Frequency Range 29Hz-141Hz (-10dB)
Maximum Peak SPL 135dB
Enclosure Material 15mm Baltic Birch
Mounting Options Floor
Height 21.8"
Width 24"
Depth 26"
Weight 94 lbs.
Manufacturer Part Number SLS18SAI

Customer Reviews

Based on 2 reviews
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Very Tight!

Very Tight low end! For a powered speaker, i don't think that you will be able to find a better one. I just ran my first outdoor festival with these this weekend and they covered about 400 people with 2 328s on top and 2 18s subs on the bottom. If i could have changed anything, I would have had 2 more subs. Other than that, there is not another powered speaker that you could compare these to. These are more transparent than any other speaker I've ever heard.
Music background: Owner (Recording Studio/Live Sound)

Good sound! Slightly underpowered though

Presonus has put out an exceptional product when it comes to the AI series of speakers. They really do sound incredible for the price. The only reason I can't give a 5 star rating is because the subs should be more powerful than they are to keep up with the AI series mains. Pairing a single 2000w main with a single 1000w sub has been a little troublesome for me. The mains tend to start running away from the subs when you start turning up your rig. Hopefully Presonus will come out with an updated model sub between 1500-2000w.
Music background: Live mix engineer, studio mix engineer, producer
See also: PA Subs, PreSonus, PreSonus PA Subwoofers