@Al- Yes, it makes sense to measure the voltage to narrow down the issue. I haven't upgraded the Parasound Halo-A21 amplifier because of two issues, room acoustics and power quality inconsistency issue that we are currently discussing. I have somewhat handled the room issue with GIK hybrid Alpha panels and wanted to ensure a good clean power feeding my music room before spending any money on the electronics. I have more or less decided to go with Pass Labs XA100.8 mono blocks when I am able to resolve these issues.
@Peter- Is it worth spending $10K to get a branded transformer from Equitech or Torus instead of getting a Commercial Power isolation transformer at a much cheaper price?
Thank you all for responding to my queries.
@Peter- Is it worth spending $10K to get a branded transformer from Equitech or Torus instead of getting a Commercial Power isolation transformer at a much cheaper price?
Thank you all for responding to my queries.