This is a biwire cable only, since it uses different conductors for bass and tweeter, i.e. multi-strand Grainfree copper for bass and solid core Grainfree conductor for tweeter. This is the most popular LFD loudspeaker cable since it has a full bass with a warm mid and controlled top. This cable is very good and the Signature version uses a Grainfree silver conductor instead of copper for the tweeter conductor. The Signature version is reference standard regarding sound quality despite being relatively cheap. The Grainfree biwire cables are VERY good choice for solid-state equipment.