Warm Audio Prem-TRS-3 Premier Series TRS Cable (3′)

Warm Audio Prem-TRS-3 Cable, a traditional balanced cable uses three cores of wire to carry audio signals—one shielded core for the positive leg, one shielded core for the negative leg, and a plain outer wrap that functions as the ground. The idea is this: a fully balanced system flips the phase of the signal, merges the positive and negative signals together, and effectively cancels out interference encountered along the cable’s length by throwing it out-of-phase with the audio.

Star-quad construction takes that concept even further, by using five cores instead of three. Two cores are provided each for the positive and negative legs, as well as a single ground. This helps to further shield the audio from RFI (radio frequency interference), ensuring an even better performance.

Warm Audio Prem-TRS-3 Cable construction techniques use an outer wrap of wire to act as the ground. Some manufacturers braid this wire, while others simply wrap the wires in a highly uniform way to shield the interior wires from electromagnetic interference.

Double-Ruessen shielding goes further than more traditional techniques in two ways: First, the cable is wrapped with two separate shields. Secondly, the outer shield is wrapped in a contrary direction to the inner shield, creating a stronger and more complete barrier from EMI for the internal cores.