I agree with adding a dedicated line for your audio setup. Have the electrician install this wire to your circuit panel. Your HiFi kit will then be isolated from all other devices and appliances in your house.
You should have surge protection for your components. A whole house unit installed by an electrician may be expensive. You can use a high quality power strip with surge protection for your components.
Adding the TT PSU would be a good upgrade.
You should have surge protection for your components. A whole house unit installed by an electrician may be expensive. You can use a high quality power strip with surge protection for your components.
Adding the TT PSU would be a good upgrade.