Russ Andrews Mini Purifier review

A simple solution to reducing that annoying noise from your mains supply

Russ Andrews Mini Purifier
Russ Andrews has managed to fit a passive mains filter into this little box

TechRadar Verdict

Just plugging a little box in near your hi-fi may sound like magic but the theory holds water and the results speak for themselves

Pros

  • +

    Sound acquires an extra delicacy

  • +

    Improves pictures too

Cons

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Russ Andrews' 'Purifier' accessories are all shunt-connected mains filters: that is, they sit connected to the mains supply and effectively 'suck' the interference out of it without coming between mains and audio equipment.

Many experimenters have found this approach preferable, though there are so many variables in specific designs that it may be dangerous to generalise. We looked at the Ultra Purifier some years ago and have also investigated the much cheaper 'Silencer' which implements some of the same ideas.