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nzlowie

Do I need a power filter?

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7 hours ago, Eggcup The Daft said:

While we're at it, let's not forget the OTHER devices in that system - the source and the class D amp driving the bass.

 

The source might ... but I don't think the bass amp will contribute to "harsh & bright".

 

Andy

 

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Is there any particular reason you suspect a 'dirty' power supply of causing perceived brightness in your sound?

Is it with the same recordings you experience the difference? Sorry, may be an obvious question.
Is there a certain time of day the system sounds better/worse? Could be the environmental noise floor hiding HF at times.

Lastly, it could also just be you. Its fairly well documented that humans experience sound differently due to many physical and psychological reasons.

Perhaps someone has input on whether one would be able to hear dirty power coming through on high efficiency speakers when the source component isn't playing but the amp is switched on?

Sent from my SM-G900F using Tapatalk

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Is there any particular reason you suspect a 'dirty' power supply of causing perceived brightness in your sound?

Is it with the same recordings you experience the difference? Sorry, may be an obvious question.
Is there a certain time of day the system sounds better/worse? Could be the environmental noise floor hiding HF at times.

Lastly, it could also just be you. Its fairly well documented that humans experience sound differently due to many physical and psychological reasons.

Perhaps someone has input on whether one would be able to hear dirty power coming through on high efficiency speakers when the source component isn't playing but the amp is switched on?

Sent from my SM-G900F using Tapatalk



Thanks everyone, the main reason for thinking it may be power is that the sound changes. Sometimes it's beautiful and other times it can be a bit harsh, something changes..... either my ears and brain or the power feeding the system. Easier to fix the power than try and fix my pee brain!

Going to try a isotec filter over the weekend so we'll see if I notice any difference.

Cheers

Sent from my SM-T800 using Tapatalk

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I'm just going to chime in and try to clarify a few things which I think might be relevant to this discussion.

Firstly, I think we need to consider that there are at least 2 different sources of dirty power; general noise/hash/voltage variance, and DC. Both can apparently come from a multitude of sources, and not necessarily within your own home, and they can be present to differing degrees at various times of day. A regular power filter will not remove DC, and a DC blocker will only remove DC. An isotran is the only device which will get rid of both. Depending on your own circumstances you may only need a simple filter, or a simple blocker, but if you have issues with both types of contamination, you'll need to try both or an isotran. My power is generally stable, but the 1kva toroidal tranny in my amp definitely benefitted from a high-current DC blocker; I think many smaller DC blockers may be fine for small amps or source components but not for my needs.

And finally, a tube amp with a large toroid will suffer from DC contamination the same as a SS amp with the same setup; tube or SS is less important than the transformer type. Just my 2c and my opinion...

 

 

 

Sent from my SM-G900I using Tapatalk

 

 

 

 

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I was in the same boat as the OP. There were some nights when I thought my music sounded really damn good. I picked up an Isotek Aquarius and now my music sounds that good all the time. Try a conditioner or regenerator and see if you can hear the difference.

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8 hours ago, nzlowie said:


Thanks everyone, the main reason for thinking it may be power is that the sound changes. Sometimes it's beautiful and other times it can be a bit harsh, something changes..... either my ears and brain or the power feeding the system. Easier to fix the power than try and fix my pee brain!

Going to try a isotec filter over the weekend so we'll see if I notice any difference.

Cheers

Sent from my SM-T800 using Tapatalk
 

 

WA has the worst mains power in Australia. Voltage variations can be huge. What is likely is that you are experiencing these Voltage variations and this may be causing sonic differences. So-called 'dirty power' is probably not an issue. You should monitor your mains supply over several days and see what the results are. If it is mains supply variations, then your only solution is to use a mains regenerator, like the ones that PS Audio and others sell. LOTS more expensive than a filter. 

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Went to West Coast hifi today and they recommend I try a Thor smart board, they recon it's better than the isotec... Anyway just tried it out , first impression, happy! Will get a better idea over the next week or so but as I said happy so far.

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I've already posted my findings about the Thor, which were backed up by some keener ears than mine (andyr, djb). In short, I sold my Thor power board and kept the PS 10, and am saving for Andy's DC blocker.  (I'd be there now if I didn't keep buying other kit, and repairs)  :(

 

(repairs are not related to the Thor. In truth the Thor was purchased after a major disaster to prevent yet more repairs, and has done so, as the power fluctuations around here are just disgusting.)

 

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Having read quite a number of threads on this forum comparing the two brands I don't think you will find many who agree that Thor is better than the Isotek gear.

 

Might be worthwhile trying both.

 

Cheers Terry

Edited by TerryO

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