T+A also offers cables with different plugs for the Solitaire T headphones. One of these is the 4.4 mm Pentaconn plug. Due to its balanced design, the left and right channels are completely separate. The separate construction allows for the optimal sound quality, as interfering influences between the channels are prevented, as they can occur with jack plugs. All contacts are hard gold-plated and free of ferromagnetic materials. The HCT 4.4 headphone cable is available in lengths of 1.4 m and 3 m.