Gigging bands, mobile DJs and houses of worship have helped make the first four generations of Yamaha Club Series Speakers incredibly popular. The refinements of generation V continue this success story: larger enclosures for improved low-frequency performance, improved drivers for higher power handling, redesigned crossovers, stronger grilles, and dual Speakon® and 1/4" connectors. The "S" Series have rugged carpet covering and steel corner protectors to hold up to the rigors of transport.