On 2006-07-11, Jim Lesurf wrote:
In article .com,
Andy
Evans wrote:
My advice is to be skeptical of mains conditioners and special mains
leads. Almost all installations will not need any mains conditioning.


I'm in a London flat and you can well imagine the layers of crud flying
about everywhere. I use a big industrial double toroid mains conditioner
- serious kit, not Russ Andrews - and it does improve the sound.

In which case I think it likely that the audio equipment you are using is
poorly designed and/or poorly made. The best advice in most such cases is
probably to choose decent equipment.

Well, it may be cheaper to add a conditioner than to change equipment
where the kit actually is mains sensitive. However there are clearly
several different flavours of mains conditioner around so it isn't a case
of just buying one at about the right price and assuming it will work.

I have not found any effect I can hear from a few different types of RF
and spike filtering applied to my kit. I may try an isolating transformer
some time if one turns up that I can use. It should take out any residual
DC effects. I can't quite understand why you may need two (as in Andy's
"double toroid mains conditioner") but maybe some research will explain.

--
John Phillips

I think it likely that the audio equipment you are using is poorly
designed and/or poorly made opined Jim.

Yes, of course it is, of course it is.

In article ,
John Phillips wrote:
I have not found any effect I can hear from a few different types of RF
and spike filtering applied to my kit. I may try an isolating
transformer some time if one turns up that I can use.

Surely most audio equipment already has an isolating transformer as part
of the power supply?

--
*Some days you're the dog, some days the hydrant.

Dave Plowman London SW
To e-mail, change noise into sound.