TIC Corporation has produced some of the finest, longest lasting and best known outdoor speaker systems for decades. Along with our award winning outdoor speakers TIC produces a range of simulated stone, outdoor rock speaker systems. Terra-Forms rock speakers are specifically designed and constructed of the latest aerospace grade composite materials to be particularly durable in the field. Robust construction materials include PP cones, Butyl rubber surrounds, anodized and Teflon sealed components. Simple in installation, yet tough and long lasting for many years of performance and enjoyment.Terra-Forms outdoor rock speakers are unique in that they not only blend and beautify any surroundings in which these outdoor rock speakers are placed but also provide many additional benefits in full range sound. Also check out the new TFS50 Outdoor Sub woofer. This is a special outdoor sub woofer with the advantages of also being an Omni Speaker Sub woofer for full 360º surround sound.TIC Corporation Terra-Forms outdoor rock speakers are the seventh generation in a most successful range of simulated outdoor stone speakers. Terra-Forms may offer you the best performance vs. economy available, in any outdoor rock speakers.