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At the heart of each earcup lies a custom 40mm dynamic driver with a beryllium-coated diaphragm. Beryllium is seven times stiffer than titanium yet significantly lighter, resulting in transient response that captures the attack of a piano hammer or the snap of a snare drum without ringing or coloration.

At $449 USD (€419 / £379), it sits above mass-market flagships like the Bose QC Ultra ($429) but below luxury brands like Focal ($1,000+). It is an investment, not an impulse buy. sirena milano hd