RCA vs optical cable?


Are there any diferences between a regular RCA interconect cable and an aoptical cable? Can I use a regular RCA interconect cable to hoop up a transport and a dac? I understand that both cables have a 75 ohms resistance, so I suppose there is no difference between these cables. I am completely wrong? Any comments. Thanks in advance for your help.
tiofelon
Distortion can be euphonic or detrimental. How it's done is practically infinite.
Jitter is just another way.
Not too hard to wrap your head around once you really think about it.

All the best,
Nonoise