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- Mar 1, 2020
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Hello,
Since I have ground loop in my system which isn't fully balanced yet, I bought Neutrik RCA to XLR adapter with small transformer inside.
It does a good job of eliminating a ground loop.
There is also a NA2M-D2B-TX version which is essentially the same but with male XLR.
So I wanted to measure it and used my RME ADI 2 Pro FS. Here is the loopback of RME just to have the base level.
I may have gotten a better loopback measurement, but this is good enough for what I need. REW generator of 1kHz is at 0 dbfs, RME vol is -5db, 3.86V and REF level is +19dBu input and output.
And here is Neutrik measured from unbalanced output of RME into balanced input:
So, the good thing is that it introduces very little noise, almost none, which is important. But it introduces a lot of distortion at 0.016%
On the other hand, there are amplifiers with the same amount of distortion and for this small transformer this isn't so bad IMHO.
The price is little less then 50 euros and I don't think you can find cheaper product for this purpose, unless DIY. Which I am thinking of doing, since it is just Neutrik NTE1 transformer inside which costs about 10 euros. Add to it XLR and RCA connector, some cable and housing, the time to do it...
I don't know how to make other measurements, like frequency response, which would also be important. But when I learn how to measure more and have time, I will.
It's just a quick measurement, but I hope you find it somewhat useful.
Since I have ground loop in my system which isn't fully balanced yet, I bought Neutrik RCA to XLR adapter with small transformer inside.
It does a good job of eliminating a ground loop.
There is also a NA2M-D2B-TX version which is essentially the same but with male XLR.
So I wanted to measure it and used my RME ADI 2 Pro FS. Here is the loopback of RME just to have the base level.
I may have gotten a better loopback measurement, but this is good enough for what I need. REW generator of 1kHz is at 0 dbfs, RME vol is -5db, 3.86V and REF level is +19dBu input and output.
And here is Neutrik measured from unbalanced output of RME into balanced input:
So, the good thing is that it introduces very little noise, almost none, which is important. But it introduces a lot of distortion at 0.016%
On the other hand, there are amplifiers with the same amount of distortion and for this small transformer this isn't so bad IMHO.
The price is little less then 50 euros and I don't think you can find cheaper product for this purpose, unless DIY. Which I am thinking of doing, since it is just Neutrik NTE1 transformer inside which costs about 10 euros. Add to it XLR and RCA connector, some cable and housing, the time to do it...
I don't know how to make other measurements, like frequency response, which would also be important. But when I learn how to measure more and have time, I will.
It's just a quick measurement, but I hope you find it somewhat useful.