Brand: Sound
I do not have additional information on the specific product with the model number sound stc-11. However, based on the model number provided, "stc-11" could possibly refer to a sound component or device manufactured by sound, a company that specializes in producing speaker systems, amplifiers, transducers, and other audio-related equipment. I would suggest checking the official sound website or contacting their customer support for more information about the sound stc-11 product.