Fire or ice? – With Børresen Acoustics, you can have it both ways. Any model in their 0 range is now available in the Silver Supreme Edition which replaces the copper rings of its driver motors with pure enhanced cast silver, then treats all metal components cryogenically. Any model in their 0 and Z range is also available in the new Cryo Edition which omits the solid silver but otherwise entails the same 3-day process of immersive sub-zero treatment. Pricing for the Cryo models spans from €12K for a Z1 pair to €100K for the 05 flagship. The four Silver model options come to €43K for a pair of 01, €68'870 for the 02, €99'500 for the 03 and €166'670 for the 05.