Turbosound TQ18B - 4000W 18-inch Passive Reflex Loaded Subwoofer in Black Finish

The Turbosound TQ18B is a compact yet powerful 18-inch passive reflex-loaded subwoofer, designed for professional sound reinforcement in both portable and fixed installations, as well as touring audio systems. With an impressive peak power handling of 4,000 watts and continuous power handling of 1,000 watts, the TQ18B is ideally suited for a wide range of speech and music applications, ensuring that it delivers deep, punchy bass and impeccable low-frequency performance across various environments.

At the heart of the TQ18B is an 18" neodymium low-frequency transducer, engineered for maximum efficiency and performance. The transducer features an advanced design with enhanced thermal dissipation and high power handling capacity, ensuring the subwoofer produces powerful, clean, and distortion-free low-end sound. This driver is paired with a sophisticated Diverging Lens Port (DLP) design, which minimizes distortion and optimizes the overall sound output. The DLP port increases sound pressure levels, further enhancing the subwoofer's bass extension and providing exceptional impact across low frequencies.

With the TQ18B, Turbosound has incorporated flexibility and control into its design. The subwoofer offers seamless integration with Lab Gruppen amplifiers and Lake DSP systems, ensuring optimal performance and complete system integration. The TQ18B also supports multiple bass array configurations, providing flexibility for various deployment setups. The inclusion of front-mounted and rear-firing Neutrik speakON connectors allows for neat and efficient cabling, particularly in cardioid mode, where rear-firing configurations provide superior rear rejection and more controlled bass patterns.

The TQ18B's cardioid-arrayable design ensures maximum control over bass radiation and reduced unwanted sound spill. With the ability to adjust the phase alignment through electronic delay steering, users can achieve optimal pattern control, making it ideal for venues where low-frequency performance needs to be directed precisely. This feature allows users to fine-tune the subwoofer's dispersion pattern to meet the specific requirements of any performance space. The subwoofer's low distortion design is further enhanced by optimized tuning that ensures an accurate transient response, delivering tight and precise low-frequency performance.

The enclosure of the TQ18B is constructed from a combination of 15 mm (5/8") and 18 mm (3/4") plywood, providing durability and structural integrity. The cabinet is finished with a semi-matte black paint, giving it a professional appearance while ensuring long-lasting durability in demanding environments. The rugged powder-coated perforated steel mesh grille, wrapped in cloth, provides additional protection for the speaker components while maintaining an elegant and unobtrusive look.

For versatile deployment, the TQ18B is equipped with integral feet for secure ground stacking, as well as dual M20 (3/4" / 20 mm thread) pole mount sockets, allowing for easy integration with satellite speaker configurations. The subwoofer's rear panel includes three Neutrik speakON NL4 connectors for easy input and link connections to additional enclosures, while the front-mounted speakON connector enables neat cabling when the subwoofer is used in cardioid mode.

The TQ18B is built to meet the demands of professional sound engineers and performers. Its IP44 rating ensures dust and water resistance, making it suitable for both indoor and outdoor use. With a frequency response range from 40 Hz to 120 Hz (+3 dB) and an extended response down to 32 Hz (-10 dB), the TQ18B provides exceptional low-frequency output, making it a reliable choice for events that require powerful, full-range sound reinforcement. The subwoofer also delivers a maximum SPL of 138 dB peak, ensuring high output levels even in large venues.

With the TQ18B, Turbosound has once again delivered a subwoofer that combines cutting-edge technology, robust construction, and exceptional performance. Whether used in FOH (front-of-house) applications, as part of a cardioid array, or for low-frequency extension in large sound systems, the TQ18B stands as a powerful solution for delivering immersive bass and precision in any professional audio environment.

Features

• Continuous power handling: 1,000 W, peak power: 4,000 W
• 18" neodymium low-frequency transducer for deep, clean bass
• Low-distortion DLP (Diverging Lens Port) design for maximum SPL
• Cardioid-arrayable with electronic delay steering for superior rear rejection
• Frequency response: 40 Hz - 120 Hz (+3 dB), 32 Hz - 200 Hz (-10 dB)
• Maximum SPL: 138 dB peak for high output levels
• Dual M20 pole mount sockets for satellite speaker configurations
• Neutrik speakON NL4 connectors for reliable long-term operation
• IP44 dust and water ingress protection for outdoor and harsh environments
• Dimensions (H x W x D): 20.66 x 30.9 x 22.04 inches, Net weight: 89.7 lbs
• Flying hardware: M10 x 16 points for suspension flexibility
• Optional accessories: wheels (Manchester wheel kit), bag (TQ18B-WPC)

Specifications

System

• Frequency Response (+3 dB): 40 Hz - 120 Hz
• Frequency Response (-10 dB): 32 Hz - 200 Hz
• Nominal Dispersion: Omni
• Power Handling (IEC): 1000 W continuous
• Sensitivity: 96.5 dB (1 W @ 1 m)
• Maximum SPL: 138 dB peak
• Impedance: 8 Ω
• Components: 1 x 18" (460 mm) Neo LF driver

Enclosure

• Connectors: 3 x Neutrik speakON NL4
• Wiring: Pins 1+ / 1- input, pins 2+ / 2- link, front pins 2+ / 2-
• Dimensions (H x W x D): 20.66 x 30.9 x 22.04 inches
• Net Weight: 89.7 lbs
• Construction: 15 mm and 18 mm (5/8" and 3/4") plywood
• Finish: PU Semi-matt black paint
• Grille: Powder-coated perforated steel, cloth wrapped
• Flying Hardware: M10 x 16 Points
• IP Rating: IP44
• UV Rating: 4-5 (ASTM G155-13)

Accessories (optional)

• Bag: TQ18B-WPC
• Wheels: Manchester wheel kit