Ground voltage!!

Black Lion PG2 power conditioner will output a steady 120 volts:

https://www.blacklionaudio.com/store/power-conditioners/pg-2-power-conditioner/

kota, if you are selling line conditioners here, I don't think Audiogon will like it.  Nor is a line conditioner at all relevant to the question.

Hello,

Sorry for the confusion is 80 volts earth and neutral.

HS.

If that is true, then you have a discontinuity somewhere between neutral and earth ground.  Could be anywhere all the way back to the circuit breaker box for your apartment building.  Or could be local.  You might call it to the attention of your landlord.  (Check other outlets for the same issue.)  Ask a real electrician if it's safe for now.

This is a big deal and you should have it fixed ASAP.