Indoor / Outdoor Granite-52 Subwoofer

Earthquake’s ROCK-on outdoor speaker series is specifically designed to imitate rock-like appearance and easily blend in with any outdoor environment.  Made with UV treated, weather-resistant enclosure materials and durable epoxy resin construction, the ROCK-on speakers can withstand the demanding outdoor elements.

Granite-52 is a pair of rock speakers with a 5¼ inch woofer and a ½ inch mylar tweeter.  They serve as your left and right speakers and have an amazing frequency response that is unmatched by any other rock speaker. They produce a clean and accurate sound.

ROCK-on outdoor speakers are the ideal choice for listening to music in the garden, by the pool, in the yard, or on the patio.

  • UV treated and weather-resistant enclosure materials
  • Epoxy resin durable construction
  • Rock-like appearance and finish to easily blend in with any outdoor environment
  • Completely sealed speaker with Santoprene surrounds, poly cones and poly dust caps


Nominal Impedance4 Ohm
Rec. amplifier power40-200W
Woofer5 1/4″
Tweeter13mm (1/2″) Mylar
Available finishGranite rock
Dimensions (W x H x D)216 x 216 x 229mm (8 1/2″ x 8 1/2″ x 9″)