KnuKonceptz has just released their new KL3 Kable designed for use as in-wall speaker wire. The KL3 Kable is a CL3/UL listed speaker wire and uses fine strand (36 Gauge) copper, with up to 462 strands per side (in the 10 gauge). The outer jacket is Ultra-Fleks PVC for durability and easy installation.
All three sizes are sold by the foot with very reasonable prices ranging from $0.55 per foot for the 14 gauge to $1.15 for the 10 gauge. Up to 1000′ in continuous length is available for the 12 and 14 gauge, while 800′ is available in the 10 gauge.
On a side note this may very well be the only 10 gauge CL3 rated speaker wire available.
Source: KnuKonceptz KL3 Kable