Power Filtering vs Power Regeneration?

Of course.....what way do they spin where you are......❓😎

Lewm,
I don't know what goes on at the wall socket and have no instruments to test it...😱
I've had the Shindo Mr T passive transformer-based power conditioner for the past two years and can report that it does nothing for my sound quality nor for the monthly deterioration in sound quality....😩
I am assuming from this...that it may be a voltage spike so large that it affects the power supply of the Halcro preamp/phonostage. The sound quality is normally then affected for up to three days before settling down...😖
I installed the PS Audio P3 power regenerator yesterday and whilst I need to wait at least 3 months to see if it cures the problem.....I can report that there is a significant improvement in the resolution, noise-floor, bass extension and treble smoothness...and I mean 'significant'...😘
What the P3 also tells me is that the voltage from the wall outlet is a pretty steady 250 volts (Australia has a nominal 240V supply) and I have elected to output a steady sinewave from the P3 of 235V at present..👀
I will monitor the situation closely for the next 3 months but this is the first power conditioning item I've used to really audibly affect the sound quality for the better.....👍

No amplifiers into the PS Audio P3 Lewm....👀
Only the Halcro Preamp and the two turntables...😎

It doesn't seem to be weather-related one way or the other...❓
It happens mostly in dry weather...but that's because it's mostly dry in Sydney anyway...😄

No tube gear...all SS..😎
The reason I think it might be the effects of a varied supply voltage is that two years ago, the power company was working on the cables in our street for three weeks (substation is only 1/2 mile away).....and for that whole time, the sound was diabolical..😱
Watching the supply voltage as shown by the P3....it went down to 245V last night and this afternoon went up to 255V for 10 minutes. It generally hovers around 250V although the electrical gear is designed for 240V❓👀

I don't know if a 10 Volt swing in 250V is a big swing or not...❓👀
Anybody....anybody....😯❓
The PS Audio seemed to do its job and sound quality didn't suffer...
Did I also mention that it has cleaned up the 'noise' in the supply....not that I was aware there WAS any previously....but the removal of it is impressive...😄👍

That's a 4% total variation in voltage. I'd say its a big deal.

Then the PS Audio power regenerator should earn its keep...❓👀

Hi Ralph,

It is useful to ask what voltage the equipment is set up for though. If 235V instead of 240V, 250V is boarding on excessive.

From the Halcro DM10 Specs:-
"Circuit contains extensive mains transient protection and fault sensing protection 85-240VAC, 50-60Hz
All voltages from 85VAC through to 240VAC at 40Hz through to 200Hz or 120V through to 340V DC.
Power supply will operate up to 270V rms but IEC sockets rated up to 240V by regulatory authorities."
If the voltage to the sockets has been 250VAC (and not 240VAC) for 8 years...could damage have occurred?