Battle Of Budget XLR Cables
Hey folks,
I planned to post this for a while, but been a bit busy elsewhere these last few weeks... Here is a quick comparison between entry-level XLR cables, along with basic measurements to find out if some of them may bring any influence in the audible (or at least measurable) domain. Yeah, I know: that is common knowledge that each of the XLR cables should perform the same, right?... Yes, they should.
Let's start with the four contenders:
Canare L-4E6S/Neutrik
This is the classic Canare L-4E6S (Star-quad) assembled with Neutrik NC3-XX plugs by World Best Cables. It is an extremely widespread combination around the audio world, and sounds almost like the textbook XLR cable to me, for either performance or reliability. The pair costs 38$ at Amazon.com for ≈1M/3ft. Unfortunately, I had to import these for much more, since it is not available at Amazon EU anymore.
Cordial CCM 1 FM
Second is the Cordial CCM 1FM (for 1 meter). It uses standard dual conductor configuration (2 X 0.22mm2) and Rean connectors. It is very well-built, solid and flexible, while having an unexciting and very professional look. It retails for 16.80€/pair.
Monoprice Premier Series
Next is another very popular budget XLR cable, the Monoprice Premier Series. It is recently available in EU (since Monoprice now has it own store here) for 23.98€/pair (1.8M). You see Monoprice put a lot of effort with their plugs design, making this cable looking much pricer than it really is. This one is also built with two conductors configuration, wrapped in a (very) thick sleeve. Too thick, actually. I found it overall lacks the flexibility you get from the Canare or Cordial, and the quite long connectors don't arrange things on this matter.
AliExpress "Canare L-4E6S/Neutrik"
Last cable is somehow quite popular offering from AliExpress. This costed me only 11.24€ for the pair (0.5M). It is claimed to be "Canare L-4E6S" with "Neutrik plugs", which obviously isn't... The first time I touched it, I was stuck by how cheap the plugs felt. Well, there's actually no way Neutrik is making this thing. Surprisingly, the holding was OK. Since I was 100% sure the Neutrik plugs were fake, I could not resist to check if there was a "real" Canare cable under this sleeve and these (useless) ferrite cores...
"Canare L-4E6S"... Yeah. Sure. From now, I gonna call this one for what it is: "Fake Canare". I expected this considering the very low price and provenance. What I did not was to discover improper wiring with both cables. Pin 1 and 3 are inverted, with shield on Pin 3. We will see how this impacts measured performance...
Measurements
Measurements you are about to see are performed with each pair of cables measured (8 runs each) from my Matrix Mini-i Pro 3 DAC to my E1DA Cosmos ADC. Software used are RMAA PRO and Multitone Analyzer from @pkane. All tests are running in 24bits / 44.1kHz.
RMAA Summary
Test | Canare L-4E6S Neutrik XLR | Fake Canare XLR | Cordial CCM XLR | Monoprice Premier Series XLR |
Frequency response (from 40 Hz to 15 kHz), dB | +0.01, -0.03 | +0.01, -0.02 | +0.01, -0.03 | +0.01, -0.03 |
Noise level, dB (A) | -123.2 | -121.7 | -123.1 | -122.9 |
Dynamic range, dB (A) | 123.0 | 121.4 | 122.8 | 122.7 |
THD, % | 0.00028 | 0.00028 | 0.00029 | 0.00029 |
IMD + Noise, % | 0.00046 | 0.00060 | 0.00046 | 0.00046 |
Stereo crosstalk, dB | -123.2 | -114.3 | -123.2 | -122.7 |
As you can see, there is little to no difference between all cables, apart from the Fake Canare. Let's see in details what is going on:
Frequency Response
No difference whatsoever...
Noise level
The Fake Canare showed constant and repeatable 50Hz hum and overall more noise at almost all frequencies. No doubt this is related to improper wiring, since just every other cables measure the same each others. I removed the ferrite cores in case they could have any influence here. They did not. Needless to say, this noise behaviour does also appear in graphs below:
THD + Noise (-3dBFS)
Dynamic Range
Intermodulation distortion (swept tones)
Intermodulation distortion + Noise
Swept frequency test showed no difference, while IMD+N revealed some unexpected peak at 15kHz.
Crosstalk
Unsurprisingly, every cable performed the same but the Fake Canare, again...
Multitone Analyzer (100 tones, 5 averages)
Canare L-4E6S
Cordial CCM
Monoprice Premier Series
Fake Canare
Not much else to say. You get basically the same performance from either cable. Despite its issues with noise, the Fake Canare did not fail to produce some decent multitone score, when this is related to distortion.
Noise immunity
Last bunch of tests I ran was done in intend to demonstrate the efficiency of XLR shielding and noise rejection abilities. To do so, I imagined some extreme case scenario where each pair of cables was stuck together to a (running) wireless charger. Let see what happens when measuring noise under these circumstances :
Noise level
Same story. I see no real advantage for the Canare using Star Quad, by the way (edit). Every cable do have a properly working shield... except for the one being wrongly wired. Note that noise is significantly worse by several dB than in the regular test above. Please also consider that was the best case scenario measured for the Fake Canare. Could it be worse than this? Yes it can:
I hesitated to post this, since I cannot figure out what the heck is going on here. I have no clue if my measurements rig captured either a ground loop or what seems to be some 1kHz tone (?)... Yet, this phenomenon appeared in three test results over a run of 8 tests... and only with the Fake Canare.
Conclusions
In a nutshell: As expected, in theory and in practice, yes, all XLR cables measure (then sound
) the same. But that only stands when considering they should all be properly wired and assembled. In (hopefully) very rare cases, some are not. Whatever the Canare, the Cordial or the Monoprice showed essentially (+-0.5dB) the same measured performance in all tests. They also proved to have a very efficient shield and noise rejection, with some of the worst situation I could imagine under domestic usage.
I give my easy recommendation for each, and will keep the Canare L-4E6S as a reference for measurements, as I already use a 8ft pair for my main active system. About the Fake Canare, that is an easy case : you should not buy something that is not what it is advertised to begin with. In addition, while I cannot guaranty its noise issues to be any kind of "audible", it dramatically failed the noise immunity test anyway. Spend a few more €/$ and simply get the much better Cordial CCM.
I give my easy recommendation for each, and will keep the Canare L-4E6S as a reference for measurements, as I already use a 8ft pair for my main active system. About the Fake Canare, that is an easy case : you should not buy something that is not what it is advertised to begin with. In addition, while I cannot guaranty its noise issues to be any kind of "audible", it dramatically failed the noise immunity test anyway. Spend a few more €/$ and simply get the much better Cordial CCM.
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