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MD Series

ModularDesign Loudspeakers are no longer in production.
QSC Audio will continue to support and service these products.
MD Series Subwoofers S-215 & S-218

MD-S215/S218 Subwoofers


QSC continues to expand their acclaimed MD (ModularDesign™) Series with the addition of two subwoofer cabinets. The MD-S215 and MD-S218 subwoofers offer dual 15" and 18" front-loaded drivers, respectively. The centrally located port features an expansive area and radius ends to reduce turbulence and port noise while significantly contributing to the stability of the cabinet. With 16 rigging points, these subs can be flown anywhere in your venue; or tuck them away under a stage, as their rounded edges make for a very sleek look and feel. Their versatile input connection panel features both Neutrik Speakon® connectors and terminal strips to easily interface with your existing system design. The inputs are wired in parallel with all pins wired as a loop-through. These stylish systems are available in both black and white finishes, with a sleek, foam backed, powder-coated steel grille.

FEATURES

  • Flat bass response down to 24 Hz
  • MD subwoofer cabinets are available in black or white finishes
  • Sixteen attachment points allow for special hanging requirements
  • Input connection panel has both Speakon and terminal strip connectors


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MODULAR DESIGN SERIES

DOCUMENTS

MD Subwoofer Specifications (PDF 200K)
Array Link Kits (PDF 646K)

HI-RES IMAGES

MD-S215 & MD-S218

RESOURCES

Enclosure Dimensions
Frequency Response Graphs

CAD DRAWINGS

MD-S215 (DXF, zipped 57k)
MD-S218 (DXF, zipped 57k)







 
SPECIFICATIONS MD-S215 MD-S218
Configuration Two 15" long-throw woofers with 4" voice coils; aluminum demodulating ring Two 18" long-throw woofers with 4" voice coils; aluminum demodulating ring
Frequency Response (-6 dB) 1
Frequency Range (-10 dB) 1
 27 Hz - 2 kHz
25 Hz - 2.3 kHz
 26 Hz - 1.8 kHz
24 Hz - 2 kHz
Nominal Impedance 4 ohms 4 ohms
Sensitivity (1 W at 1 m) 1 99 dB 101 dB
RMS Power Handling 2 1800 W 1800 W
Maximum Output at 1m
  Continuous 3
  Peak 4
132 dB
138 dB
134 dB
140 dB
Recommended Amplifier Power 3600 W 3600 W
Input Connectors Speakon® and terminal strip
Enclosure  
Suspension points 16 load-rated pick points that accept 3/8"-16 threaded hardware
Finish Wear resistant textured paint, available in black and white
Grille Powder-coated perforated steel
Dimensions 26" H x 40" W x 23.3" D
(660 mm x 1016 mm x 591 mm) 		28" H x 48" W x 24" D
(711 mm x 1219 mm x 610 mm)
Weight 180 lbs (82 kg) 200 lbs (91 kg)

1 Groundplane
2 AES1984 50 - 500 Hz
3 Calculated based on sensitivity and continuous power handling capacity
4 Calculated based on sensitivity and 6 dB peak-to-average ratio of signal used for continuous power handling test

Specifications subject to change without notice.

ModularDesign is a trademark of QSC Audio Products, LLC
Speakon is a trademark of Neutrik

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QSC and the QSC logo 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.