QSC Audio GP218-sw Speaker User manual
QSC WL218-sw is a high-performance subwoofer designed for ground-stacked use in demanding touring or installed concert applications. It features dual 18" woofers with 4" voice coils, providing powerful and accurate low-frequency reproduction down to 27.4 Hz. The rugged Baltic birch plywood enclosure with internal bracing ensures durability and eliminates acoustic losses. With a continuous power capacity of 1700W and a peak output of 140.5 dB SPL, the WL218-sw delivers exceptional sonic impact for large-scale events.
Advertisement
Advertisement
GP218-sw
WideLine™ Ground-Support Subwoofer
Features
• 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
The GP218-sw is a premium, highperformance, 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. 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. 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
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.
Extensive internal bracing is employed to eliminate acoustic losses due to panel resonance. Further contributions to cabinet rigidity come from vent walls constructed of the same plywood as the enclosure. Woofers are protected by a heavy-duty, 14 gauge, powder coated steel grille and housed in separate chambers to prevent failure of one driver from causing damage to the other.
Despite the extremely large amount of air moving in the ports, careful attention to detail has resulted in a system that is free of port distortion “chuffing”. Ample port area allows massive amounts of air to move freely with minimal turbulence and the ports are arranged so as to eliminate asymmetrical loading of the woofers, which can result in distortion and voice coil failure related to rocking-modes.
Like its “flyable” brother, the WL218-sw, the
GP218-sw subwoofer’s sonic performance and output capacity are second to none.
But for those who only need the exceptional sonic performance, without the need for expensive rigging and flying capability – the GP218-sw gives the exact same sonic impact, but for a more economical price tag.
QSControl.net™/ BASIS™ DSP files are available for download. They have been fine tuned for use with the GP218-sw and the WL218-sw to provide optimized performance right out of the box.
GP218-sw
Dimensions | Specifications
Top
47.17"
1198 mm
30"
762 mm
20"
508 mm
Front
Configuration
Transducers
Frequency Response (±3 dB)
Frequency Range (-10 dB)
Nominal Impedance
Continuous Power Capacity
Recommended Power
Sensitivity (1 W at 1 m)
Maximum Output - Continuous / Peak (SPL at 1 m)
Cabinet Type
Enclosure Material
Grille
Connectors
Pin Outs
Attachment Points
Weight (Net / Shipping)
Dimensions (HWD)
Accessories Available (optional)
2 x 18" vented subwoofer
8Ω 18" woofer with a 4" voice coil, ceramic magnet assembly
31.4 Hz - 240 Hz (without processing)
27.4 Hz - 1.2 kHz (without processing)
4Ω
1700 W
3000 - 4000 W
101.5 dB
134.5 dB / 140.5 dB
Vented, rectangular enclosure
Baltic birch plywood / 18 mm
14 gauge powder coated steel
2 x NL4 in parallel
Pins
1+/1- Sub
2+/2- NC
Sixteen (16) threaded M10 inserts
191 lbs (86.6 kg) / 209 lbs (94.8 kg)
20" x 47.17" x 30" (508 mm x 1198 mm x 762 mm)
CP218-0 – 4-wheel transportation dolly
CP218-1 – 4-wheel transportation dolly plus soft cover
Specifications subject to change without notice.
QSC, the QSC logo, WideLine, QSControl.net and BASIS are registered trademarks of QSC Audio Products LLC in the U.S. Patent and Trademark office and other countries.
All other trademarks are the property of their respective owners. Patents may apply or be pending.
1675 MacArthur Boulevard • Costa Mesa, CA 92626 • Ph: 800/854-4079 or 714/957-7100 • Fax: 714/754-6174
GP218-sw Spec Sheet - 05/13/08
Side
qscaudio.com

Public link updated
The public link to your chat has been updated.
Advertisement