The iQ18B powered subwoofer brings professional-grade bass performance to your sound system with its impressive 3,000-watt output and precision-engineered 18" driver. This front-loaded subwoofer excels across portable and fixed installation applications, handling both music and speech reinforcement with exceptional clarity. The high excursion low frequency driver features a double suspension design and low mass 4" voice coil, ensuring fast transient response and virtually distortion-free operation even during the most demanding performances.
At the heart of the iQ18B lies a highly efficient KLARK TEKNIK Class-D power amplifier paired with sophisticated Digital Signal Processing technology. The advanced DSP provides dynamic EQ and transparent limiting, maintaining punch and definition at high output levels while ensuring long-term reliability. The system includes detailed speaker modelling presets that accurately replicate some of the audio industry’s most respected speaker systems, giving you professional flexibility in any application.
The rear panel amplifier module houses a comprehensive user interface featuring an LCD display, Channel A/B gain controls, and an intuitive rotary encoder for accessing level, EQ, speaker modelling, and Feedback Control functions. Connectivity options include balanced XLR/jack combination inputs, XLR outputs for powered satellite speakers, plus mic/line switching with level control and signal present LED. The proprietary ULTRANET technology enables pristine multi-channel audio transmission via CAT5 cables, eliminating RFI and crosstalk while reducing setup time. An onboard USB port allows remote control via PC and provides access to DSP and firmware updates.
Built to withstand professional use, the birch plywood enclosure features a durable semi-matt black finish and rugged powder-coated perforated steel mesh grille. Practical features include a 35mm pole mount for satellite speaker support, plated steel castors with rubber tyres for easy transport, and Neutrik powerCON connectors for mains power input and link output.
- Front loaded powered subwoofer for portable PA and installation applications
- 3,000 Watt power featuring Klark Teknik Class-D technology
- Klark Teknik Digital Signal Processing for total system control
- Speaker modelling includes accurate models of industry standard speakers
- ULTRANET digital audio networking connects to mixers and other sources
- High excursion 18" low frequency driver with 4" voice coil and double suspension
- Fully featured user interface with LCD display for ease of navigation
- PC remote control software downloadable at turbosound.com
- Birch plywood enclosure with hard wearing semi matt black paint finish
- Rugged powder coated perforated steel mesh grille
- 35 mm pole mount to support satellite speaker
- Plated steel castors with rubber tyres
- Mains input and link output on Neutrik powerCON connectors
- Designed and engineered in the U.K.



