Hi timjam,

Your amp will drive the 6-ohm speakers with no problem. It's only when speaker impedance touches 4 ohms, which means higher current flow through the output stage, that some receivers and amps may tend to overheat or trigger protection circuitry. You don't need special cable. Just use 14-gauge or 12-gauge cable to keep resistance low.

Regards,

Alan Lofft,
Axiom Resident Expert (Retired)