StudioLive® 18sAI Active Integration subwoofers from PreSonus are designed to complement full-range systems without overshadowing them. Driven by 1,000W RMS of Class D amplification, the 18sAI’s 18-inch ferrite speaker delivers exceptional low-end performance down to 35 Hz (-6 dB). With studio-monitor accuracy onstage and unprecedented onboard processing and networking features, the net result is a musical approach to sub-bass frequency reproduction that affords a natural listening experience on a large scale.
Powerful and musical, the 18sAI naturally extends low-frequencies with a fast and accurate transient response. This sub is a perfect mate for StudioLive 312AI, 315AI, and 328AI full-range loudspeakers, making it an ideal choice for installations and mobile applications where fidelity matters. For applications that require a more linear (“flat”) frequency response between the subwoofer and full-range speaker, engage the highpass filter on the full-range StudioLive AI-series loudspeaker to readjust the phase and time-alignment, keeping the full-range system in phase with the 18sAI subwoofer.
Subwoofer Features
- Main Components
- 18-inch ferrite transducer
- 1,000 watt (bridged), Class D amplifier
- Active Integration 32-bit, 96 kHz DSP with variable crossover, dynamic limiting, and excursion limiting
- Stereo line inputs (XLR-¼” combo) and switchable stereo/summed-mono line outputs (XLR)
- Universal Switch mode power supply with power-factor correction
- Controls and Networking
- Ships with Ethernet connection for wired control; optional Dante card
- Alignment delay (switchable: 0, 2, or 4 feet) enables subwoofer to be placed in different positions relative to a full-range speaker system
- Wireless or wired networking with free SL Room Control software for Mac®, Windows®, and iPad® enables complete setup, tuning, and monitoring
- Network Setup Wizard automatically detects each speaker and allows you to quickly connect to your wireless router network
- Remote control over Maximum SPL/output level, high-pass filter, onboard operational modes, performance monitoring, mute, and speaker delay
- 31-band graphic EQ and 8-band parametric EQ (total of 10, including feedback notch filter)
- Visually display room layout on a laptop or iPad
- Edit, save, recall, and share speaker-setup parameters
- Convenience Features
- Comfortable, ergonomic handles
- Integrated pole insert and interlocking stacking provisions
