maty
Major Contributor
https://www.audiosciencereview.com/...-of-purifi-1et400a-amplifier.7984/post-195556
The amp is old. It was probably designed to work at 220 Vac. Then 238 Vac is too much. One of my modifications, the first, was to increase the bias.
Audiophiles and others who can not control their emotions are the ones who spend a lot of money, believing it to be the solution to their audio problems.
There is something wrong with your kit then as that voltage is within specification, and generally amps prefer more rather than less juice.
More likely it's purely in your head, but for some reason audiophiles never want to admit that they have emotions that we cannot control.
The amp is old. It was probably designed to work at 220 Vac. Then 238 Vac is too much. One of my modifications, the first, was to increase the bias.
Audiophiles and others who can not control their emotions are the ones who spend a lot of money, believing it to be the solution to their audio problems.