Kyle, it doesn't seem very useful to rely on arbitrary length limits for Toslink connections, since three factors are involved: the strength of the LED output in the sending unit, the attenuation of the light in the cable, and the sensitivity of the LED conversion process in the receiving unit. So, the same cable can have different results depending on the associated equipment. You might note that users reported success with the
35' MonoPrice cable . Yes, another option is to use the optical to coax converter that MonoPrice and others offer.
