May 13, 2016  The RST cone of a Monitor Audio Silver 6 driver Monitor Audio? s Bronze, Silver, and Gold series: overview. Monitor Audio Bronze 2 This bookshelf speaker is a reference for entrylevel models; it is also known for being one of the rare compact loudspeakers to be fitted with a 6. 5 driver (as opposed to the less powerful 5 models usually used for this format).