Double Bass, Profundo Series, Size: 3/4. The Stentor Profundo is a superbly crafted double bass with selected close, even grain spruce front and highly figured maple back, sides and neck. The Profundo double bass is an excellent handcrafted instrument, carved from selected solid tonewoods, with inlaid purfling. This instrument is individually workshop fitted. Finish: Natural. SpecsHand made from solid tonewoodsFully hand carved front and backEbony fingerboardHigh quality bridgeHigh quality quarter plate brass machine heads.