Call to Valhalla? – With Rögnir [€2'850], you might just hear it. From Russia with love, it's Kennerton's first closed-back planarmagnetic headphone. As such it has their own 80mm kapton membrane driver behind carbon plates set into solid-wood bodies from whose species the customer chooses between beech, bog oak, bubinga, purple heart, walnut or teak. The detachable cable uses vintage Litz wiring. It terminates in mini XLR and XLR4. An XLR4-to-6.3mm cable adapter is included. So is an eco-leather case. Specs are 10-55'000Hz bandwidth, 100dB/1mW sensitivity and 42Ω impedance. Weight is 436g.