สายดับเบิลเบส Pirastro รุ่น Perpetual (ชุด) Developed with pizzicato players in mind, the Perpetual Double Bass Set will also suit arco players looking for a precise clear tone with a wide variety of dynamics. A powerful and focused low end gives way to a sophisticated upper register. extremely flexible rope core steel strings tremendous volume and clarity easy and comfortable left hand feel-very energetic highly articulate and dynamic response chrome windings on all stringsจ