Kenwood Hearing Centers newest hearing aid location in Sonoma now open. If you're looking for an experienced and fair Audiologist in Sonoma, look to the hearing loss professionals at Kenwood Hearing Centers. Since 1959 Kenwood Hearing has been locally owned and operated. What started as 1 location in downtown Santa Rosa in 1959 had grown to 6 locations throughout Sonoma and Solano counties. Kenwood Hearing Centers is a full service hearing loss center that treats all types of hearing loss, tinnitus and other hearing ailments. We also sell and fit all major hearing aid brands.