I'm aware of Sound Lab owners using speaker cables from (in alphabetical order) Analysis Plus, Audience, Goertz Kimber, Magnan, Nordost, Purist Audio, Tara Labs, and TG Audio. I'm sure there are others. I sell some of these.
The Sound Labs are a very coherent speaker, so a cable that does an exceptionally good job of minimizing time smear is desirable. Also, as the Sound Labs have a high impedance in the bass and a low impedance at high frequencies, you don't need a big thick high-current, jumper-cable-type speaker cable. But you do need a cable with very low series inductance, as series inductance will tend to roll off the very top end and rob the big 'stats of some of their "air".
Duke
The Sound Labs are a very coherent speaker, so a cable that does an exceptionally good job of minimizing time smear is desirable. Also, as the Sound Labs have a high impedance in the bass and a low impedance at high frequencies, you don't need a big thick high-current, jumper-cable-type speaker cable. But you do need a cable with very low series inductance, as series inductance will tend to roll off the very top end and rob the big 'stats of some of their "air".
Duke