TechPowerUp published a review on the ZMF Caldera Closed Planar Magnetic Headphones
ZMF Caldera Closed Planar Magnetic Headphones Review
The ZMF Caldera Closed closed-back planar magnetic headphones manages to combine the bass impact and timbre of dynamic driver headphones with the tactility and low distortion of planar magnetic drivers. It goes for a cleverly implemented, colored tonality featuring multiple patented technologies, and uses ZMF's handcrafted wooden ear cups to make for a compelling flagship product.