If the cable will be run near electrical cords or in an area near something like a radio tower, these issues can be mitigated by using shielded cables. With this information in mind, remember that the rest of this article highlights the maximum distance a cable can run and still work. Some of these numbers are not officially acknowledged as industry standards, but real-world experience has taught us what to look for.
For information on data cable distance limits, click here. It is possible to go further by custom-making something using thicker cable than usual. The lower the AWG, the greater the distance you can go. Not problems with the signal quality, but problems with having to manage a massive physical cable. XLR is usually used with microphones, amplifiers, or similar equipment. Keep in mind that the further the cable runs, the less likely this will go off without a hitch. Toslink signals are just as limited by the equipment they are connected to as the cable itself.
Low-quality and older cables may only support optical signals up to 5 or 10 meters. Modern Toslink typically runs 15 meters, although some brand-new electronics mainly computers and satellite receivers can use up to 30 meters.
If extra distance is needed, do not buy the least expensive Toslink cables you can find you will get what you pay for. Speaker wire is a bit more complicated than other cables when it comes to distance limits.
Depending ohms and AWG of the cable, the maximum distance changes. A more detailed breakdown can be seen here , while the chart below provides a simple conversion.. S-video is an older type of connection, now considered obsolete.
Newer electronics are not built with s-video included, but this older technology had plenty of time to be developed in its heyday.
If extending the S-video past that, ethernet extensions will also be needed. VGA is an analog signal and will get weaker over longer distances. For high-quality video, the maximum recommended distance is 25 feet. For maximum signal quality, DVI cables will work up to 5 meters.
The 5-meter limit extends to DVI-I integrated since it is capable of analog as well as digital. Any distance from 6 to 15 meters will result in lower signal quality but is available for DVI-D digital cables.
Whether a DVI cable is single-link or dual-link does not affect the maximum distance limit. However, dual-link cables have higher bandwidth and will suffer less degradation over longer distances. There are two main types of RCA, composite and component. This older analog signal is well tested but has largely been replaced with newer, digital cables.
A balun can be used to extend composite RCA using ethernet, but it only works for the audio red and white cables. While the cable length, thickness, and material changes resistance, that still leaves the question of how it will affect the actual sound quality.
The lower the impedance, the more likely that it can be impacted by resistance and the length. However, audio and sound experts say that speaker impedance is not a single value. It can fluctuate according to the frequencies. A sudden increase in frequency can show a higher impedance. Other factors that can alter output impedance is whether the device is in a sealed enclosure, or if it is in open air. Because balanced connections are designed to eliminate noise and interference, they can theoretically be of any length.
In one forum, a sound engineer observed that subwoofers seem to be more affected by the cable transmission. So it is more likely to suffer signal loss than stronger volt-level signals sent by speakers. But like speaker cables, the quality of your subwoofer connectors can make a big difference in reducing noise.
An RCA cable can pick up electromagnetic interference EMI , particularly if it is positioned near other household electrical connections. That can cause a low humming sound when you try to listen to music or watch a movie on your home audio system. He explains that any pick up will be intercepted by the shield and routed to the ground of the subwoofer power amplifier.
You can also get a high-quality subwoofer cable that is thicker and more resistant to EMI. Look for braid or dual braid shielding, or sidestep the problem entirely and get wireless subwoofers. These products usually have an operating range of 12 meters. People are willing to spend top dollar for headphones that retain the integrity of the sound.
Does cable length matter for headphones, or is this only an issue for speakers or other equipment? The thing is, headphone cables are vulnerable to interference because of the weak voltages. So, the shorter the cable is, the better your output will be. However, some people need to have longer headphone cables. Luckily, the material and construction of your headphone cables can help minimize interference and noise.
Headphone cables are frequently made from gold, copper, silver, or rhodium and budget headphones often use silver-plated copper. But if you can afford it, look for one made from high-quality copper. This low-resistance metal can help slow down any signal loss.
There are also premium headphone cables that have oxygen-free copper clad wire. As we mentioned earlier, copper oxide has a high resistance and will result in more interference. You can also invest in a low pass filter cable , which controls capacitance and inductance to minimize signal loss.
Choosing a thicker cable can also help balance any issues caused by length—and has the added bonus of not getting tangled up. We all know the frustration of tangled headphone cords!
According to audio professionals, it depends on many factors. Theoretically, any audio loss would be too negligible to affect your sound quality. There are cases where people have used 35 feet XLR cables with no problem at all. Long speaker cables can also be of concern.
First in terms of the added impedance that substantial runs may add, the increased resistance can, in more extreme cases, lead to power loss. And, in my experience, there simply tends to be more loss of signal though speaker cables than through interconnects of equivalent lengths.
I know some cable manufacturers may disagree mostly from makers of cables using in line networks , but the vast majority of time long interconnects with shorter speaker cables sounds better to me.
So, how long should cables be? Is there a "rule of thumb"? The answer is as short as possible! With speaker cables I like to stay under ten feet, and find eight feet to be the most popular and practical length. In a system where components are grouped closely together, one meter cables are the norm, but if the amplifiers are sited further away three to five meters isn't uncommon.
Can you hear the degradation at those lengths? Yes, you can, but it may be an acceptable trade off to accommodate other considerations. Usually balanced cables when interfacing true differentially-balanced components provide better results over very long runs than can be expected with single ended cabling.
When long runs of either interconnects or speaker cables are used, cable quality becomes extra important.
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