Titan 15 is using custom designed, heavy duty 15" low frequency driver with 2" titanium high frequency compression driver. The Titan 15 is at home indoors or outdoors, on stage, in studios, at rehearsals, theaters, houses of worship and just about anywhere that needs a higher standard of audio reproduction. Titan 15 moisture proof woofer makes it the ideal choice for outdoor gigs and festival applications. No matter what the application, Titan 15 is up for the challenge.Two Speakers for sale R4500 Contact Dirk at 079-490-5633 or.