Profile: Stereostone, Inc. manufactures architectural outdoor weatherproof speakers. Our product line includes small rocks, large rocks, sub rocks, planters and fountains & stereo models. We provide Da Vinci cinema rock loudspeaker which uses computer assisted design models including exclusive weatherproof bass tuned port which extends bass frequencies down to 35hz. Our sub rocks are used for additional power handling of bass frequencies when higher sound pressure levels are needed for improved performance.