PS Audio Stellar phono question

I have a Stellar Phono preamp which both RCA and XLR outputs.  I will be getting a new preamp that has both RCA and XLR inputs.  Are the XLR outputs on the Stellar Phono truly “balanced”?

Is there an advantage to using the XLR connection between the Stellar Phono and the preamp?


I think it is true balanced, but consult PS Audio directly is my advice.

If both input and output are truly balanced, then yes, the XLR connection is much cleaner with much less noise.  Probably a good thing from a phono stage to a preamp...

Dear @hifinut51  : According with the J.Atkinson Stellar measurements @lewm  is rigth:




PS Audio specifies the voltage gain for the moving-magnet input as Low (44dB), Medium (50dB), or High (56dB), depending on the setting selected with the remote control. Looking at the Stellar's balanced output, I measured gains of 43.9dB, 49.35dB, and 54.8dB, very close to those specified. The gain at the unbalanced output was exactly 6dB lower at each setting. The nominal MC input gain is 60dB, 66dB, or 72dB. With the MC input's input impedance set to 47k ohms, I measured gains of 59.9dB, 65.4dB, and 70.8dB. The gains at the unbalanced output were again 6dB lower. Both the moving-magnet and moving-coil inputs preserved absolute polarity.

My estimates of the PS Audio preamp's output impedance were lower than the specified values, at 100 ohms vs <200 ohms unbalanced, and 300 ohms vs 400 ohms balanced. """


Please read again the @fuzztone  post.



Regards and enjoy the MUSIC NOT DISTORTIONS,


In case it is not clear to the OP, what Raul is showing you is that the 6db difference between balanced and unbalanced inputs and outputs is more or less proof that the amplifying circuit is balanced.

Use your ears.  I have the Stellar going into the BHK Preamp and I have tried RCA and XLR and prefer XLR for short runs with 1 meter Harmonic Technology cables.  Oddly, I preferred a cheapish RCA cable over a cheapish XLR cable for 12' runs which is the opposite of what I would have thought.  Since you can use both XLR and RCA outputs simultaneously it should be easy for you to figure out which you prefer with your cables.