Yamaha SV250 Pro Series 4 String Silent Violin, Shaded Brown Finish Designed to meet the needs of the professional performer playing diverse styles, these 4 & 5 string violins establish a new benchmark for sound quality and player comfort. An innovative dual pick-up bridge allows the performer to blend the tone from an edgy electric to a rich acoustic sound. An external control box reduces the weight of the violin to 500 grams, roughly the same as a traditional acoustic violin.