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Power Filtering vs Power Regeneration?

About two years ago....I began experiencing the dreaded power supply vagaries which seem to attack my system every two or three weeks...πŸ‘€πŸ˜±β“
The analogue soundstage collapses with a loss of transparency and bass whilst the high frequencies become grating, strident and brittle.
This makes the experience of listening to records, worse than the truly bad days of CD playback...and it can last two or three days before gradually settling down...πŸ˜₯
So frustrating had this new phenomenon become that I bought a Shindo Mr T transformer based power filter into which I plug both turntables and the Halcro DM10 phonostage/preamp....πŸ‘€
Unfortunately it hasn't solved the problem...πŸ˜₯
I'm wondering if a power regeneration circuit like the PS Audio P3 would be more likely to succeed....❓
128x128halcro
halcro's avatar
halcro OP
2,664 posts
 
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...❓👀
atmasphere's avatar
atmasphere
11,793 posts
 
4% variation in voltage should be no worries. If the equipment cannot manage that it can be considered to be problematic. It is useful to ask what voltage the equipment is set up for though. If 235V instead of 240V, 250V is boarding on excessive.

It is worth it to see if the PSAudio solves the problem. If so *then* we can conclude that the problem is AC related.

Just for the record: a 'spike' cannot cause the kind of problems described. Neither can the weather, unless its a secondary effect, such as people running air conditioners more and causing a brownout.
lewm
13,019 posts
 
Tony, It is most likely that your friend's system was affected by humidity because of the sensitivity of ESL speakers, especially Quads, to humidity. Humidity affects the tension of the mylar diaphragm, AND it also affects the static charge in the space between the diaphragm and the stators. As I recall, Sound Labs have had a lot of problems shipping their ESLs to customers in the South Pacific, e.g., the Phillipines and Malaysia, for this reason. Thankfully, those of us residing in sealed, heated, and air conditioned dwellings in the temperate parts of the US have only minor problems with ESLs. ESLs are also temperamental at high altitude and in excessively dry air.
halcro's avatar
halcro OP
2,664 posts
 
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?
atmasphere's avatar
atmasphere
11,793 posts
 
No.

How's that for a simple answer? It sounds like the amp has a switching power supply.
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