Voltage regulator in the power chain

I bought a Cullen Perfect Plug which a cullen power cable on it (plugs into my wall socket). Into that I have plugged my APC voltage regulator, acts a power bar too. Into the voltage regulator I have plugged my amp with a Zu Audio power cable.

The perfect plug + cable are designed to reduce noise. I'm wondering if my APC voltage regulator will add noise?

The power where I live now is quite stable, I can't say I need it (unlike where we used to live), but it is convenient as a power bar. A nice safeguard too.

~Jim