A lot of modern devices are compatible with HDMI and RCA both so with either you should be able to make a connection. However, some tvs especially old ones only have RCA. You can get a separate stand alone RCA cable for them or convert your existing HDMI. Buying a separate RCA cable would not cost you more than the connector. These cables are quite cheap and may even cost less than the connector in which case it totally makes sense to buy one. Which type of connector is the best? RCA 45 RPM 9-JY Record Player and RCA Tube Radio 6-XD-5". BlueBoy Records. Archived from the original on 2011-09-10 . Retrieved 2011-08-23. You can use an RCA cable in lieu of a coaxial digital but it is recommended not to. This is because the digital one has powerful shielding and has higher bandwidth that cannot be matched with an RCA cable. This is why RCA cable start to loose signal quality over a long distance. For a short distance, it may work but for a longer distance a digital coaxial would be more suitable. The digit bits are not consistent on a long distance with an RCA and you start to loose quality of the audio signal i.e. the sound stutters. If your TV doesn't have HDMI ARC or a port marked HDMI output, then you'll need to use the digital audio output. This will either be an optical or co-axial port, so make sure your sound bar has the matching input.

When connecting the male into the female, the inner hot (signal) connection is made before the ground connection has been guaranteed; this often produces a loud buzz if the equipment is active when the connection is made. Our TV connections wizard will show you exactly how to connect your system. How to connect PVRs and set-top boxesBy no later than 1937, RCA introduced this connector. In 1937, it was used inside a RCA model U-109 radio- phonograph and model R-97 phonograph. In the U-109, the internal amplifier chassis had female connectors which accepted male cables from the internal radio chassis and built-in phonograph player. [9] [10] Originally, the concept was intended as an easy method to unhook sources while troubleshooting the console during servicing. [ citation needed] Models TRK-9, TRK-12, TRK-90, and TRK-120: AC, Superheterodyne, High-Picture-Definition, Five-Television-Channel, Receiver and Three-Band, Electric Tuning, AC, Superheterodyne Broadcast Receiver". RCA Victor Service Data Volume II: 1938-1942: Radio Receivers, Phonographs, and Television (PDF) (1sted.). Radio Corporation of America, RCA Victor Division. 1944. pp.261-C, 275-C.

There are several types of RCA cables and component cables are one of them. So you can say that component wire is similar to other RCA cables. However, there are differences in terms of how the signal is carried or the end results you get. The component cable has three lines of video signals and two for audio while audio RCA only have lines for audio. Some components consist of only three lines of video without any lines for audio signals. In such a case they are combined with audio RCA to provide both video and audio signals between the devices that are being connected. Model U-109: Sixteen-Tube, Three-Band, A-C, Radio-Phonograph". RCA Victor Service Notes for 1937 Broadcast Radio Receivers, All-Wave Radio Receivers, Phonograph Combination Instruments, and Miscellaneous Service Information (PDF) (1sted.). RCA Manufacturing Company. p.256. Consumer Electronics Association standard CEA-863-B - Connection Color Codes for Home Theater Systems, CEA, February 2011, archived from the original on 2011-07-12 , retrieved 2011-08-27

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Simply put these two wires are similar but not exactly the same and may not produce the same end results. For a high quality picture, you will have to spend some money on a top quality component wire. Is An RCA Cable The Same As A Coaxial Digital? The RCA cable is also used for connecting audio or stereo devices to transmit sound signals. In this case, the cable only transmits audio signals. It is usually of very high quality and should be like that for the signal to be of high quality. It can be combined with video RCA like component to achieve both HD video and audio transfer. Connectors a b Richardson, Paul (June 1938). "Improved Electric Tuning For All Is Keystone of New RCA Victor Standard Line of Domestic Models" (PDF). RCA Globe Trotter. Vol.2, no.3. p.15.