QSC GP218-sw Dual 18" Subwoofer (Discontinued)

The QSC GP218-sw is a premium, high-performance, rectangular dual 18" subwoofer designed for ground stacked use in the most demanding touring or installed concert applications. With an impressive combination of punch, low-frequency extension and musical accuracy, the GP218-sw is an ideal companion for the acclaimed QSC WideLine series as well as other professional sound reinforcement systems.
For suspension in permanent installations each GP218-sw subwoofer comes with a total of sixteen (16) threaded M10 inserts (four per side).

For ground-supported applications, the subwoofers may be stacked horizontally using their interlocking feet and recess features machined into the enclosure's top panel. The 18" woofers incorporate 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 extensively vented to reduce power compression. An aluminum demodulating ring is employed for low distortion. The extremely musical yet powerful performance of the subwoofer is the result of carefully balancing the transducer selection, cabinet volume and port tuning. The resulting system offers plenty of "punch" while maintaining ample extension so the musically important and satisfying fundamentals are solidly and accurately reproduced.

The enclosure of the GP218-sw is constructed of premium quality birch plywood finished in an environmentally friendly, waterborne, polymer finish that stands up to life on the road while also being field repairable.

• Very high acoustic output capability – 140.5 dB SPL(1m) peak.
• Tight musical “punch” combined with low-frequency extension down to 27.4 Hz.
• Elegant transport and handling features including an optional transport dolly plus soft cover and four thoughtfully placed handles.
• Premium-grade, long-excursion, high-power woofers with 4", fiberglass voice coils, double layer spiders and triple-roll surrounds.
• 18 mm Birch ply enclosure with independent, dual chambers and extensive internal bracing for rigidity and solid, accurate reproduction.