PCH-3B, hard tension, is a classical halfset made up of D'Addario's silver plated copper wound on a special multifilament composite core. The strings are then polished for reduced fingernoise. This half sets feature basses of flattened silver plated copper, which are then polished for reduced finger noise, making them ideal for recording. These hard tension strings are a popular choice for their rich tone, increased resistance, and strong projection.