Sorry but I am missing the logic here - Silclear on the tube pins either creates/adds noise or it does not.
Assuming the tubes are for the left and right channel you can test that by swapping the tubes and seeing if the "weakness" is now on the other channel.
If the "weakness" follows then you the tube is the probably culprit and most likely needs replacing. You can do the same with the source input cables and the XLR output cables.
The prevailing wisdom I have lived by for 35 years is when in doubt, suspect the cables first.
Finally if you have taken the time to read the whole thread you will know that putting Silclear on anything - especially tube pins is a bad idea.
It becomes sticky and gummy, loses conductivity and is a PITA to remove. More specifically there have been some reports of Silclear on the tube pins shorting out the tube socket.
Assuming the tubes are for the left and right channel you can test that by swapping the tubes and seeing if the "weakness" is now on the other channel.
If the "weakness" follows then you the tube is the probably culprit and most likely needs replacing. You can do the same with the source input cables and the XLR output cables.
The prevailing wisdom I have lived by for 35 years is when in doubt, suspect the cables first.
Finally if you have taken the time to read the whole thread you will know that putting Silclear on anything - especially tube pins is a bad idea.
It becomes sticky and gummy, loses conductivity and is a PITA to remove. More specifically there have been some reports of Silclear on the tube pins shorting out the tube socket.