The HCP 6.3T+A offers a selection of three different headphone cables to suit various audio needs. Among these, one is equipped with a 6.35 mm barrel connection type, commonly known as the "jack," which is regarded as the most popular and frequent connector to date. Despite its widespread use, this design is not symmetrical, meaning the left and right channels are not separated, which can affect the audio quality.

Additionally, the HCP 6.3 headphone cable is available in two different lengths, providing flexibility for different scenarios. Users can choose between a 3-meter and a 5-meter cable, depending on their specific requirements for reach and convenience. This range of options ensures that users can find a suitable cable for their particular setup, whether it be for professional studio work or casual home listening.