In this article, we compare RCA vs Banana Plugs to understand their differences and specifications.
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Two of the most popular audio cables are RCA and banana plugs. They are extensively used in various applications. The question is the difference between them and when to choose which.
Also Read: Speaker Wire Connector Types
It is vital to know the similarities and differences between them. But before that, let’s get enough details about each of these audio cable types.
RCA (Radio Corporation of America) connectors are audio connectors used to transmit audio and video signals from one device to another. They are alternatively referred to as phono connectors. Right from the 1980s till now, RCA plugs and cables have been quite famous.
In the 1940s, when the RCA substituted the ¼ inch TRS connectors on phonographs, it permitted them to be connected to amplifiers. Therefore, RCA plugs are sometimes referred to as phono connectors.
Chiefly, they connect video and audio devices like VCRs and tape recorders to TVs and stereos to speakers. Plenty of vintage amplifiers and receivers are equipped with RCA connectors.
The RCA connector is commonly used in HiFi systems and many other home audio appliances. Essentially, it is an unbalanced, mono connector that you can even find on the DJ mixers.
The structure of RCA connectors shows two connectors -one for the left side audio and the second for the right side. Commonly, they are seen in red and white colors.
Such cables use phone connectors known as RCA jacks or CINCH/AV. Prominently, the plugs deliver video and audio signals to equipment.
Note that RCA cables fragment data into varied streams based on the type of signal. Subsequently, the cables transmit the data to a particular jack.
RCA ports are made up of small, circular holes encased in a metal case. For proper indication and guidance, they are available in varied colors.
Connectors on RCA cables are usually made of copper, gold, or silver. The ones which are gold plated are the costliest.
It is easy to get RCA ports on audio interfaces, analog mixers, active PA speakers, combo amps, and more for the professional audio domain.
In recent times, most devices have used HDMI cables rather than RCA. Therefore, RCA is not as famous as it used to be. But, plenty of A/V equipment is still equipped with RCA ports.
RCA connectors are found in both male and female components. Female RCA components are called RCA jacks, whereas male RCA components are called RCA plugs.
Now let’s go through the two major RCA cables, i.e., composite and component RCA cables.
Any composite RCA cable contains three plugs. It implies that the signal transmitted through composite RCA cables passes through three varied channels.
Out of these three channels, one is a video channel, whereas the rest two are audio channels. All composite RCA cables are color-coded, i.e., red, yellow, and white (or black).
The red plug signifies the right audio channel, and the white (or black) work as the left channel. Note that the yellow pin also conveys the composite video signal, but this composite video signal is analog or non-digital. It brings all the video data in a single signal.
Since analog video comprises three distinct signals, combining them into one signal degrades the quality somewhat. It is also important to note that composite video signals usually include 480i NTSC/576i PAL standard definition video signals. They are not meant to be used for digital video signals or high-definition analog.
Compared to composite RCA cables, component RCA cables are implemented with advanced features. They are not so common, unlike composite RCA cables. They deliver high-resolution videos (options are 480p, 576p, 720p, 1080p, and higher). Therefore, they are widely used for HD TVs.
Component RCA cables contain two audio lines (red and white or black) and three video lines (typically colored red, green, and blue). On the other hand, the color-coding of the three video lines is blue, red, and green. To distinguish, the two red lines typically have an additional color added.
You can conveniently add the plug with a thread. Note that the pin is a tad short and has a smaller diameter that can easily connect to the cable. If you own a device with an RCA thread, you can use the unused speaker.
Due to the unique structure of the RCA cable and the insulating system, there are lower chances of shocking and short circuits.
The majority of the speakers available today possess bare end wire. However, plenty of sound appliances accept the RCA plug. Therefore, after connecting the RCA plug to speaker wires, it is possible to use your speaker with the bare end to the particular devices. This implies that you don’t have to purchase a speaker with an RCA cable to use your device.
Most of the old devices contain an RCA thread, and they can be used with a contemporary speaker with the help of an RCA cable.
HDMI cables serve as a stylish way to connect devices. But there are still a lot of prospects to use RCA cables.
RCA cables connect a wide range of video and audio devices like TVs or camcorders, or stereos to speakers. The majority of high-end camcorders contain all three RCA jacks.
Hence, the signal incoming or outgoing from the device passes through three distinct channels (two audio and one video). Consequently, it leads to a high-quality transfer.
Usually, lower-end camcorders contain only one jack, known as a stereo jack; it combines all three channels. As a result, it leads to low-quality transfers since the signal is compressed.
So, RCA cables can transmit analog or non-digital signals in either case. Due to this, they can’t be directly plugged into a computer or other digital device.
RCA cables connect all types of devices to amplifiers.
It becomes so much easy to connect and remove speaker wires from your audio equipment if you use Banana plugs. Without these plugs, you need to handle bare cables whenever you want to plug/unplug a wire from a component.
They are single-wire electrical connectors helpful in connecting wires to equipment. These plugs were introduced to solve the issue of using bare speaker wires for connecting speakers to amplifiers. The reason being the bare speaker connectors are untrustworthy.
In simple terms, banana plugs are male connectors designed to fit into banana sockets. The name ‘banana’ is coined, considering the shape of their pin.
Since a banana plug is fixed over speaker cables, they are principally used to connect power amplifiers and speakers equipped with traditional binding posts. Such plugs are attached to speaker cables (the rear of the pin links to wire) by soldering, screwing, or crimping.
Usually, there is an insulating plastic case on the connector. The inclusion of banana plugs protects speaker cables from being exposed and retains the sound quality.
Brass is used in the manufacturing of banana plugs. The brass is then coated with gold or nickel to avoid corrosion. Moreover, the coating guarantees smoother connections.
The majority of banana plugs feature elegant aesthetics and an exceptional cylindrical pin feature with sprung metal ‘leaves’ that protrude outward (based on applications, variations exist).
The springs offer a snug fit and decent connectivity in a socket. It also protects the pin from falling out. Usually, the diameter of the pin usually 4 mm. Hence, banana plugs are also known as 4 mm plugs.
You need to insert the wires at the back of the plug. Now screw it down and place the pin into the socket of your speaker.
The bare wires available within the plug tightly press against the metallic portion of the plug and create a robust electrical connection. Whenever a banana plug is inserted into a speaker, signals would transmit from one device to another; no messy association.
Two of the most common types of banana plugs are discussed below:
Their size is 4 mm. The size has been extensively accepted in all regions of Europe as the standard size for banana plugs. So, all standard banana plugs are compatible with all 4 mm banana sockets/jack. You can measure a standard banana plug using a digital multimeter.
Their size is smaller than the standard-sized banana plugs. They can be either 1 mm or 2 mm in size. Usually, the 1 mm-sized mini banana plug is referred to as a pin plug.
The majority of mini-sized banana plugs come in 2 mm size. If you are uncertain about the size of the mini banana plug you are using, then you can consult your manufacturer’s product sheet. These plugs are used to test electrical circuits.
Different styles of banana plug contacts are prevalent. All of them are dependent on the idea of spring metal applying output force into the unsprung cylindrical jack to provide a snug fit with decent electrical conductivity.
In addition to the two types discussed above, other common types of banana plugs are a tip of four-leaf springs, a solid pin divided lengthwise and expanded slightly, a bundle of stiff wire, a cylinder with a single leaf spring on one side, a central pin enclosed by a multiple-slit cylinder with a prominent bulge, or sheet spring metal spooled into an almost complete cylinder.
All banana plugs and jacks are usually color-coded. The most common colors used are red and black. If a Mueller part is present in color, then the termination of the part number would represent a single digit and a dash. The particular digit resembles the color of the part.
No, RCA connectors are principally used to transmit line-level audio signals. Conversely, banana plugs are chiefly used to transmit speaker-level signals, typically from an amplifier to a speaker.
RCA plugs are intended to transmit line-level signals. Note that line-level signals are comparatively weak and carry quite a lower current. Thus, RCA plugs carry weak signals.
Conversely, banana plugs are uniquely designed to transmit speaker-level signals. The speaker-level signal is nothing but an amplified audio signal intended to drive speakers.
Speaker-level signals convey a higher current than the one carried by line-level signals. Banana plugs are chiefly used to feed speaker-level signals from a power amplifier to a speaker.
After profoundly going through the details of both these plugs, it is inferred that they don’t share much in common.
The only similarity is that they both transmit audio signals. But, you must remember that they don’t communicate the same kind of audio signal.
Yes, this is possible using an RCA to Banana plug adapter. The mentioned adapter works as a link amid your RCA and banana plug.
If you want to connect RCA to a banana plug, you can use a stereo RCA L/R Phono to Speaker banana plug adapter. This adapter comes with an RCA jack at one end, and the other has banana connectors. Therefore, it assists you in converting your banana plug into an RCA jack. It is straightforward to set up this adapter. Moreover, the cables are color-coded for easy polarity identification.
With an RCA to Banana plug adapter, you can conveniently connect an RCA port to a banana plug port. Usually, the price of such adapters is affordable.
RCA to banana plug adapters works as a multi-purpose hook-up apparatus for amplifiers, speakers, and audio receivers. Hence, it allows speakers and amplifiers with banana outputs to connect through an RCA cable.
If you want to transmit both video and audio signals, you need to go for RCA plugs. They can transmit line-level signals, perfect for connecting A/V devices like decoders to TVs/speakers/stereo amplifiers. RCA plugs are well-known for establishing secure connections.
If you want to transmit only audio signals, you can go for banana plugs. They are audio connectors that are affixed over speaker cables. Moreover, they transmit speaker-level signals. These plugs are well-known for their excellent durability.