Turbosound TQ15B – Passive 15" Bass-Reflex Subwoofer The TQ15B is a compact, passive, single 15-inch subwoofer with a peak power of 3200 W, perfectly suited for a wide range of applications related to the reinforcement of speech and music sound, in both stationary, portable, and rental audio systems. The TQ15B is designed to work in conjunction with Lake DSP and Lab Gruppen amplifiers, providing optimal FOH performance, as well as significant flexibility to easily adapt to various venue requirements. Various bass array configurations and all presets are available for download.

Custom-Engineered Drivers Turbosound is known worldwide for designing and building some of the most iconic speakers and subwoofers. We make every effort and are proud to maintain this reputation by using only drivers designed and manufactured by us, according to our demanding standards.

Cabinet Design The low-distortion level cabinet design used in the TQ15B enhances the low-frequency spectrum. Steep cutoff slopes and DLP (Diverging Lens Port) technology ensure effective acoustic transition when used with other elements of the TQ series.

Construction and Connections Finished with a very durable, semi-matte black paint, the enclosure is made of 15 mm (5/8") and 18 mm (3/4") plywood and includes a sturdy, powder-coated, fabric-wrapped perforated steel grill. The connection plate on the rear panel contains Neutrik speakON* NL4 connectors for input connections and connections to additional enclosures. The front grille is also equipped with a Neutrik NL4 connector, which allows for neat cabling when the enclosure is set in cardioid mode.

Integration with Lab Gruppen PLM+ With the increasing complexity of modern sound systems, seamless integration with Lab Gruppen PLM+ is a prerequisite for the TQ series from Turbosound. Our engineers have prepared and meticulously designed a series of presets that will allow the user to achieve maximum possible performance and system consistency. FIR filters will be supported on future Lab Gruppen platforms.

Acoustic Simulation Tools EASE GLL libraries are provided for the predictive software EASE Focus 3, which is available for free download. This allows for accurate calculation of acoustic coverage and adjustment of the simulation strategy to DSP presets with a choice of traditional front-firing bass arrays, as well as cardioid and end-fire configurations.

Key Features: Single, 15-inch bass-reflex subwoofer capable of forming cardioid arrays for installation and rental applications 800 W continuous power, 3200 W peak power 15" neodymium low-frequency driver Designed as an extension of the low frequency range of the TQ series Seamless integration with Lab Gruppen amplifiers and Lake DSP processor provides a complete system solution Flexible cardioid configurations and electronic delay control provide excellent rear damping and directivity control Optimized for extended low-frequency impact and precise transient response Integrated feet for secure ground stacking Dual, integrated M20 sockets (3/4" / 20 mm thread) for pole mounting to support satellite speaker configurations Enclosure made of 15 mm (5/8") and 18 mm (3/4") plywood with an extremely durable, semi-matte black finish Neutrik SpeakON* NL4 connector on the rear panel for input signal connections Front-mounted NL4 connector for cardioid mode rear-firing operation