Overview
The GP118-sw 18" Portable Subwoofer from QSC is a high performance, direct radiating 18" subwoofer with a black tour grade finish. It is designed for use in portable and installed sound applications. The GP118-sw is an ideal companion to QSC's WideLine Series, ILA Series, AcousticPerformance Series and AcousticDesign Series loudspeakers. The GP118-sw features an 18" transducer that incorporates a double layer spider and triple roll surround for extended and controlled excursion at extreme power. The 4" voice coil is wound on a fiberglass former to prevent deformation at high operating temperatures and is vented to reduce power compression. An aluminum demodulating ring is employed to reduce distortion.
The GP118-sw is housed in an 18mm Baltic birch plywood enclosure and finished in an environmentally friendly, waterborne, polymer finish rugged enough for the demands of everyday use while also being field repairable. Internal bracing is employed to eliminate acoustic losses due to panel resonance while maintaining the enclosure's robustness. The vent walls are constructed of plywood, and the ample port area allows free movement of air. The transducer is protected by a 16-gauge, powder coated steel grille. The GP118-sw includes built-in handles for ease of transport. For increased versatility, the subwoofer can be stacked vertically using the interlocking feet and recess features machined into the enclosure's top panel. The GP118-sw can also be reversed to facilitate cardioid array deployment.
Features
- Premium-grade, long excursion, high power 18-inch transducer with 4-inch voicecoil, dual layer spider and triple-roll surrounds
- Interlocking feet and recess features allow for rigid vertical stacking
- Built-in handles for ease of transport
- Threaded pole cup for deploying a full-range loudspeaker on top
- M10 fittings allows for suspension in permanent and portable applications
- Dual NL4 Speakon connectors
- 18mm Baltic birch plywood construction
- 16-gauge powder coated steel grilles
- Finish available in black (GP118-sw-BK) or white (GP118-sw-WH).
- Complete EASE, CAD & BIM information available online
- Cinema-version available for surround LFE
Specs
| Frequency Response (-10 dB) | 29 Hz–800 Hz |
| Power Capacity1 | 850 W (82.5 V) continuous 1700 W peak |
| Nominal Sensitivity2 | 98 dB, 2.83 V @ 1 m |
| Maximum Rated SPL | 129 dB @ 1 m, continuous3 135 dB @ 1 m, peak4 |
| Nominal Impedance | 8Ω |
| Transducer | 457 mm (18-inch) driver with 102 mm (4-inch) voice coil |
| Recommended Power | 1700 W |
| Enclosure Details | |
| Input Connector | Dual NL4 connector |
| Pinout | 1+/1- Sub 2+/2- N/C |
| Enclosure Material | 18 mm Baltic birch plywood |
| Finish | Black (GP118-sw-BK) or white (GP118-sw-WT) texture coat |
| Attachment Points | 16 threaded M10 inserts |
| Grille | 16-gauge powder coated steel |
| Dimensions (HWD) inches | 20.9 x 25.8 x 30.4 |
| Dimensions (HWD) mm | 531 x 656 x 772 |
| Net Weight | 111 lb / 50.3 kg |
| Shipping Weight | 121 lb / 54.9 kg |
