Product Features
- 18" bass reflex subwoofer for touring and live sound applications
- 700 Watt continuous power handling, 2,800 Watt peak power
- 18" low frequency driver with 4" voice coil, motor structure and suspension optimised using FEM analysis
- QUAD flared bass reflex port design for low distortion performance
- Flexible cardioid configuration with electronic delay processing for superior rear rejection and pattern control
- Optimised tuning for extended low frequency impact and accurate transient response
- 15 mm and 18 mm plywood enclosure finished in durable semi-matt black PU coating
- Seamless integration with Lab Gruppen power amplifiers and Lake DSP for a complete system solution
- Integrated stacking feet for secure ground stacking
- Integrated M20 pole mount (3/4" / 20 mm thread) for satellite loudspeaker support
- Two rear-panel NL4M connectors for input, link and pin-swap connections
- Front-mounted NL4 connector for rear-firing cardioid operation
The PQ18B is a compact single 18" passive subwoofer delivering up to 2,800 Watts peak power, ideal for a wide range of speech and music reinforcement applications in fixed installations, portable systems and touring sound. The PQ18B is designed to operate seamlessly with Lake DSP and Lab Gruppen power amplifiers, delivering optimal FOH performance and exceptional system flexibility to suit varying venue requirements.
Multiple subwoofer array configurations and downloadable system presets are available.
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Custom Designed Drivers
Turbosound is globally recognised for the design and manufacture of some of the most iconic loudspeakers and subwoofers in the Professional Audio industry. To maintain this reputation, Turbosound exclusively uses custom-designed drivers, engineered and specified in-house to meet the most demanding performance standards.
Enclosure Design
The low-distortion bass reflex design utilised in the PQ18B reinforces low frequency output for both live music and program material. Steep cut-off slopes and QUAD flared port technology ensure an effective acoustic transition when used with other elements of the PQ Series.
Construction and Connectivity
Finished in a highly durable semi-matt black paint, the enclosure is constructed from 15 mm and 18 mm plywood, and fitted with a rugged powder-coated perforated steel grille backed with acoustic foam. The rear connector panel features industry-standard twist-lock connectors for input, link and pin-swap connections. A front-mounted twist-lock connector allows clean cabling when deployed in cardioid mode.
With the increasing complexity of modern sound systems, seamless integration with Lab Gruppen IPX 4800 and PLM+ platforms is a core design requirement of the Turbosound PQ Series. Carefully engineered system presets enable maximum performance and consistency, ensuring reliable results across a wide range of applications.
Acoustic Simulation Tools
EASE GLL files are provided for use with EASE Focus 3 Acoustic Simulation Software. This allows accurate prediction of acoustic coverage and alignment of simulation strategies with DSP presets for forward-firing, cardioid and reversed end-fire configurations.
Specification
System
| Frequency response (±3 dB) |
45 Hz – 200 Hz |
| Frequency response (-10 dB) |
32 Hz – 3 kHz |
| Nominal dispersion |
Omnidirectional |
| Power handling (IEC) |
700 W continuous / 2,800 W peak |
| Sensitivity (1 W @ 1 m) |
99 dB |
| Maximum SPL |
138 dB (peak) |
| Nominal impedance |
8 Ohms |
| System type |
Passive |
Notes:
1. Free-field conditions, measured at 1 metre on axis.
2. Measured in accordance with IEC 268 standard using pink noise.
3. Calculated peak SPL at 1 m under half-space conditions using dedicated system presets.