Sonos Ace vs Sennheiser Momentum 4 Wireless: Which over-ear headphones are better?

Following from the launch of the Sonos Ace, we were keen to see how they measure up against the Sennheiser Momentum 4 Wireless. We compared our reviews of the two over-ear headphones to determine which headphones are best. The Sonos Ace is the more expensive of the two headphones, with an RRP of £449 / $449 / €499.

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