The STEREO M & L streaming systems are supplied with a special connection cable for connecting the left speaker to the right speaker.
The cross-section of the individual copper wires varies with this cable between 0.5 and 1 mm², depending on which channel is driven with it (tweeter > 0.5 mm², midrange > 0.75 mm², woofer > 1 mm²).
Due to the different cross-sections, the cable may only be extended once, as the expected signal losses could impair the sound image in the case of a further extension.