No. S/PDIF is a digital protocol for carrying sound, RCA is just a connector.
However you can transfer S/PDIF data via an RCA connector.
I would strongly consider RCA cables and also S/PDIF.
The Lynx CBL-XFDR18 S/PDIF Adapter may be the best.
Some but not all Dell computers include an S/PDIF connector as part of the sound card.
S/PDif is a digital communication standard. It stands for Sony/Phillips Digital InterFace. S/PDIF is a way of digitally sending sound in up to dolby 7.1 digitally, so there's no analogue noise or signal loss. S/PDIF has two interfaces; optical and coaxial. Both are equal in quality, but the optical interface uses a laser and fiber optic cable to transmit the data, whereas the coaxial uses electrical signals. With S/PDIF, the communication is one direction; in other words, input or output. Many computers today have a S/PDIF out, which can go to a receiver that has a S/PDIF in.
No, a S/PDIF is, by definition, a Sony / Phillips Digital Interconnect Format connector, and is always a digital signal. It is usually connected by an RCA cable, and can be carried by cable specified for analog use, but digital cable is better.
Digital audio stream
S/pdif
S/pdif
S/PDIF is the domestic digital audio standard, developed by Sony and Philips. It is normally carried on a copper cable using RCA (phono) connectors or with an optical fiber using TOSLink connections. Both interfaces carry the same data and can be considered equivalent to each other. One does not offer better quality than the other.
S/pdif
It is certainly possible. Use an S/PDIF connector for good audio quality.
S/PDIF or Sony Philips Digital Interconnect Format is a standard/protocol that specifies transmission of audio signals from one device to another in digital format. Both coaxial electrical cable and an optical fiber cable can be used to carry signals in S/PDIF format. - Neeraj Sharma