Best kept secret in AC line filtering conditioning

When my amp is on with shorting plugs in the inputs, the volume all the way up, the silence is deafening, even with the rest of the gear plugged in, just a faint hiss, so how will this help improve things, or wouldn’t it?
Maybe the average UK power supply is quite good quality, or my amp just has a very good PS. https://www.radiomuseum.org/r/frank_hi_fi_stereo_amplifier_pram_30.html


Component wise, it’s not a lot for your money.
@oldhvymec +1

@grannyring  "This noise can be defined as any unwanted signal which is corrupting/perverting the fidelity of the recording."
If there is no noise when the amp volume is up with no input signal, where and why does this unwanted signal become apparent when there is an input signal, and if it can affect the recording audibly, why can't you hear it when there is no input signal. A quiet amp is a quiet amp, it doesn't suddenly become noisy when it has an input signal.

@grannyring I understand that, but if there is no noise from the amp when it’s not playing, and no noise from the amp when everything is connected to it and switched on and it’s not playing, then surely there is no noise entering the system from the mains supply, or if there is the systems power supplies are dealing with it. It can’t just suddenly appear just because I start playing a flac file. Maybe the mains supply is generally cleaner here for some reason, as I have never had a mains noise problem or needed any mains conditioner, and I have used the mains supply in many places across the UK. Maybe the UK being smaller and having many power stations, we are all just closer to the source here, or maybe 230V as opposed to 110V has something to do with it? I don’t know, apart from 230V equipment drawing roughly 50% the current of 110V.

I don’t know how houses are wired in the US, here the downstairs and upstairs power ring are on their own breakers, as are the upstairs and downstairs lighting rings. Power rings are 2.5mm FTE cable and lighting is 1.5mm FTE cable, Also Immersion heaters and Cookers are on there own separate breaker/feed.

@cleeds
1000Watts @ 240V - 1000/240 = 4.16 Amps
1000Watts @ 110V - 1000/110 = 9.09 Amps
My point being if connections are not perfect trying to pass 9.09 Amps through them will cause more problems than passing 4.16 Amps.

@cleeds
That would be assuming the identical piece of equipment being used at 110V and 240V, whereas the equipment would be built for the particular voltage being used, so both pieces of equipment would be different so they produce the same Wattage output. If an amplifier manufacturer builds a 100Watt amplifier and sells it in the UK and US they fit the appropriate power supply to feed the amp with what it needs to produce 100 Watts. They don't sell it with the same power supply in both countries as 100 Watt in one and 50 Watt in the other.

@thyce  Thing seem to be quite different in the US to the UK this is a typical UK consumer unit with the usual value breakers for a there bedroom house. https://cursorium.co.uk/uploads/consumer_unit.jpg