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Clearer Audio CopperLine Alpha Power-Hub review

The top value Clearer Audio CopperLine Alpha Power-Hub mains block can make a noticeable difference Tested at £90

What Hi-Fi? Verdict

Makes a noticeable difference, but not the last word in cohesion


  • +

    Gains in bass weight

  • +

    wider soundstage


  • -

    Sound lacks cohesion

Mains conditioners have their doubters, but it’s apparent that this budget six-way Clearer Audio block makes a discernible difference to your set-up.

Through it, our reference kit gained bass weight, and a wider soundstage, while treble and midrange lost their harder edges while detailing also improved.

However, despite its advantages, the sound sacrificed cohesion for analysis, meaning that elements such as vocals lost nuance and impact.

For the money it’s great, but it’s not the best in class.

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What Hi-Fi?
What Hi-Fi?

What Hi-Fi?, founded in 1976, is the world's leading independent guide to buying and owning hi-fi and home entertainment products. Our comprehensive tests help you buy the very best for your money, with our advice sections giving you step-by-step information on how to get even more from your music and movies. Everything is tested by our dedicated team of in-house reviewers in our custom-built test rooms in London and Bath. Our coveted five-star rating and Awards are recognised all over the world as the ultimate seal of approval, so you can buy with absolute confidence.

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