Sennheiser MM 70i review

With a little more sonic oomph, these headphones could have been a five-star product Tested at £50

What Hi-Fi? Verdict

Nice features for the money – with a little more sonic oomph, these headphones could have been a five-star product


  • +

    Three-button remote and mic

  • +

    weighty bass and decent detail

  • +

    clean and clear sound


  • -

    Could do with greater attack and agility

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We’ve been told that the Sennheiser CX 280s are the replacements for the excellent Award-winning CX 300-IIs, but this MM 70i pair seems much more like them.

They’re significantly more expensive than the 300s, but at least a portion of that extra cash can be put down to the three-button remote-and-mic unit, which is placed on the cable near your chin.

They sound good, too. There’s impressive balance and detail, plus a weighty, but not overbearing bottom-end.

The only problem is that they’re not quite as thumping or dynamic as they might be, which leaves the usually rather primal drumming of The Jezabels’ Dark Storm with a little less impact.

Still, they’re never harsh and always clear, so those looking to upgrade from CX 300-IIs to a pair that's designed for smartphones won’t be disappointed.

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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, Reading 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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