Dex Romweber put on a great show last night at Dollhouse Studios — a new venture in West Savannah. Romweber, formerly of Flat Duo Jets, now plays much of the time with his sister Sara, the drummer in the Dex Romweber Duo. Sara is a trip to watch as her long hair flies as she attacks the drums, but it’s Dex’s show — that deep voice is so compelling and crystal clear. He was sure on point last night.