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Turbosound PQ18B 18" Reflex-Loaded Passive Subwoofer
The PQ18B is the subwoofer that sits under the Turbosound PQ full range cabinets, a reflex-loaded single 18" box for live production work. The driver runs a 4" copper voice coil on an FEM optimised motor with a double silicon spider.
Output is omnidirectional and rated 700 W continuous, 2800 W peak into 8 ohms, with 99 dB sensitivity at 1 W and 1 m and 138 dB peak SPL. At 47.9 kg it is a two-person lift, and the crossover is passive so one amplifier channel drives the cabinet.
| Type | Reflex-loaded passive subwoofer |
|---|---|
| Frequency response (+/-3 dB) | 45 Hz - 200 Hz |
| Nominal dispersion | Omnidirectional |
| Power handling (IEC) | 700 W continuous, 2800 W peak |
| Sensitivity (1 W @ 1 m) | 99 dB |
| Maximum SPL | 138 dB peak |
| Impedance | 8 ohms |
| Crossover type | Passive |
| Components | 1 x 18" (460 mm) ferrite LF driver, 4" copper voice coil |
| Dimensions (H x W x D) | 520 x 660 x 687 mm (20.47" x 25.98" x 27.05") |
| Net weight | 47.9 kg (105.6 lbs) |








